20211104092648emacsconf20212021-11-272021-11-28America/Torontohttps://emacsconf.org/20212021-11-27T14:00:00Z09:00enMainTalkMainemacsconf-2021-talk-day1-open0:05Times are approximate and will probably change. # Opening remarkshttps://emacsconf.org/2021/talks/day1-openEmacsConf2021-11-27T14:05:00Z09:05enMainTalkMainemacsconf-2021-talk-news0:05Times are approximate and will probably change. # Emacs News Highlights Sacha Chua <mailto:sacha@sachachua.com> - pronouns: she/her Quick overview of Emacs community highlights since the last conference <https://github.com/sachac/emacsconf-2021-emacs-news-highlights>https://emacsconf.org/2021/talks/newsSacha Chua2021-11-27T14:11:00Z09:11enMainTalkMainemacsconf-2021-talk-frownies0:20Times are approximate and will probably change. # The True Frownies are the Friends We Made Along the Way: An Anecdote of Emacs's Malleability Case Duckworth Emacs is well-known for being extremely flexible, programmable, and extensible; in fact, that's probably the biggest reason it's still being used after 40+ years of existence, and even has enough clout to generate an entire conference in its name. In this medium-length presentation, I will add another point to the data set proving Emacs's abilities, by narrating the latest package I made, \`frowny.el\`, from its conception to its current, nearly-completed state. I wrote frowny.el to scratch someone else's itch as a joke on IRC, but it has been called "pretty useful, for a joke package." I feel like that encapsulates the spirit of Emacs and that's why I want to present on this topic. Along the way, I'll discuss just a little of my own history of Emacs, and why I feel it's a great tool for non-technical users to sink their teeth into.https://emacsconf.org/2021/talks/frowniesCase Duckworth2021-11-27T14:34:00Z09:34enMainTalkMainemacsconf-2021-talk-adventure0:20Times are approximate and will probably change. # Choose Your Own (Technology-Enhanced Learning) Adventure Greta Goetz This presentation will first illustrate possible paths for beginners and then mapping out the significance of the enhanced learning potential of Emacs (Caillet in Andler & Guerry, Markauskaite & Goodyear). The technology-enhanced learning (TEL) that Emacs affords departs from the 'many, many features' (Stallman) which surpass the confines of a pre-fabricated environment (Stiegler). This affords diverse possibilities for individuals to interact creatively and autonomously to satisfy their own needs alongside others who share use of the tool (Illich). Its adaptability will be shown to be an asset in support of the learning trends identified by the latest pedagogical research (Guo). 1. Setting out as beginners who may be overwhelmed by formal Emacs documentation. Some inroads. No trace is too small. 2. Emacs as common ground between people and technology. 3. Emacs modularity and TEL design. 4. Emacs as personal, creative, autonomous. 5. Emacs and cognitive democracy. # References ## General workflow, inspiration, fun: - Bin, C. (2020). Mastering Emacs in one year. <https://github.com/redguardtoo/mastering-emacs-in-one-year-guide/blob/master/guide-en.org#on-the-shoulders-of-giants>. Accessed 25 October 2021. - Chua, S. https://sachachua.com/blog/ - Goetz, G. (2021). Additional references: A back-to-school/GTD Emacs journey. <https://gretzuni.com/articles/a-back-to-school-gtd-emacs-journey>. Accessed 25 October 2021. - Guerry, B. (2020). Org-mode features you may not know. <https://bzg.fr/en/some-emacs-org-mode-features-you-may-not-know/>. Accessed 25 October 2021. - Kaiser, K. (2017). Writing a technical book in Emacs and Org-mode. <https://www.kpkaiser.com/programming/writing-a-technical-book-in-emacs-and-org-mode/>. Accessed 25 October 2021. - Planet Emacs Life. <https://planet.emacslife.com/>. Accessed 25 October 2021. - Stavrou, P. My packages for GNU Emacs. <https://protesilaos.com/emacs/>. Accessed 25 October 2021. - Wellons, C. Emacs articles. <https://nullprogram.com/tags/emacs/>. Accessed 25 October 2021. ## On TEL design and learning: - Andler, D. & Guerry, B. (Eds.). *Apprendre demain: Sciences cognitives et éducation à l’ère numérique*, 137-154. Paris: Hatier. - Crichton, M. (1983). *Electronic life*. New York: Knopf. - De Bono, E. (2009). *Think! Before it's too late*. London: Random House. - Drosos, I. & Guo, P. (2021). Streamers teaching programming, art, and gaming: Cognitive apprenticeship, serendipitous teachable moments, and tacit expert knowledge. IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC), short paper, 2021. <https://pg.ucsd.edu/pubs.htm>. Accessed 25 October 2021. - Gabriel, R. (1996). *Patterns of software*. New York, Oxford: Oxford University Press. - Goodyear, P. & Retalis, S. (2010). Learning, technology and design. In Goodyear, P. & Retalis, S. (Eds.). *Technology-enhanced learning: Design patterns and pattern languages*, 1-27. Rotterdam, Boston: Sense Publishers. - Guo, P. (2018). Students, systems, and interactions: Synthesizing the first four years of Learning@Scale and charting the future. L@S 2018, June 26–28, 2018, London, United Kingdom. DOI: https://doi.org/10.1145/3231644.3231662. <https://pg.ucsd.edu/pubs.htm>. Accessed 25 October 2021. - Guo, P., Kim, J. & Rubin, R. (2014). How video production affects student engagement: An empirical study of MOOC videos. ACM Conference on Learning at Scale. <https://pg.ucsd.edu/pubs.htm>. Accessed 25 October 2021. - Illich, I. (1973). *Tools of conviviality*. New York: Harper & Row. - Kim, J., Guo, P., Seaton, D., Mitros, P., Gajos, K. & Miller, R. (2014). Understanding in-video dropouts and interaction peaks in online lecture videos. ACM Conference on Learning at Scale. <https://pg.ucsd.edu/pubs.htm>. Accessed 25 October 2021. - Markauskaite, L. & Goodyear, P. (2017). *Epistemic fluency and professional education: innovation, knowledgeable action and actionable knowledge*. Dordrecht: Springer. - Markel, J. & Guo, P. (2020). Designing the future of experiential learning environments for a post-COVID world: A preliminary case study. NFW ’20 (Symposium on the New Future of Work), August 3–5, 2020, Virtual Event. <https://pg.ucsd.edu/pubs.htm>. Accessed 25 October 2021. - Morin, E. ([2004] 2008). *La Méthode - tome 6: Éthique*. Éditions du Seuil: Paris. - Stallman, R. (2002). *Free software, free society*. GNU Press, Free Software Foundation. - Stiegler, B. (2018). *The neganthropocene*. Open Humanities Press. - Trocmé-Fabre, H. (1999). *Réinventer le métier d’apprendre*. Paris: Éditions d’organisation. # Availability and preferred Q&A approach Due to the pandemic situation, my teaching schedule fluctuates so I will not know my availability until much closer to the date. Therefore, I can only guarantee delayed answer response (whatever you request), but if available, will join live. May I please note that I will be pre-recording my video if this submission is accepted. # Speaker release By submitting this proposal, I agree that my presentation at EmacsConf 2021 is subject to the following terms and conditions: The EmacsConf organizers may capture audio and video (a "Recording") of my presentation and any associated materials, which may include slides, notes, transcripts, and prerecording(s) of my presentation that I provide to the EmacsConf organizers. I authorize the EmacsConf organizers to distribute, reproduce, publicly display, and prepare derivative works of the Recording and any derivative works of the Recording (the "Licensed Materials") under the terms of the Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license. I grant to the EmacsConf organizers permission to use my name, likeness, and biographic information in association with their use of the Licensed Materials under the above license. I represent that I have the authority to grant the above license to the EmacsConf organizers. If my presentation incorporates any material owned by third parties, I represent that the material is sublicensable to the EmacsConf organizers or that my use of them is fair use.https://emacsconf.org/2021/talks/adventureGreta Goetz2021-11-27T14:56:00Z09:56enMainTalkMainemacsconf-2021-talk-unix0:10Times are approximate and will probably change. # GNU's Not UNIX: Why Emacs Demonstrates The UNIX Philosophy Isn't Always The Only Answer Daniel Rose The talk targets users who are curious about computational philosophies, or those who might not know how to best utilise Emacs conceptually. The talk will cover what the UNIX philosophy is, the GNU Free Software principles, a typical (Neo)Vi(m) user's approach, and then how one might accomplish this in Emacs combining the aformentioned ideals. The listeners will learn how they can approach Emacs ideologically, and how blocking themselves into one philosophy or the other will limit their efficiency. Although you may be a veteran GNU/Linux and Emacs user, understanding how to use both philosophies together will still allow you to be more performant than without. # Outline - How can one limit their usage of CLI tools while still maintaining the ideals of both. - How using CLI tools can still perfectly flow into Emacs. - How having all programs in Emacs and unified keybindings is akin to a terminal user. - Why thinking about computational philosophies might itself be an impediment.https://emacsconf.org/2021/talks/unixDaniel Rose2021-11-27T15:09:00Z10:09enMainTalkMainemacsconf-2021-talk-omegat0:10Times are approximate and will probably change. # Emacs manuals translation and OmegaT Jean-Christophe Helary Even if it is generally agreed that software localization is a good thing, Emacs is lacking in that respect for a number of technical reasons. Nonetheless, the free software using public could greatly benefit from Emacs manuals translations, even if the interface were to remain in English. OmegaT is a multiplatform GPL3+ "computer aided translation" (CAT) tool running on OpenJDK 8. CATs are roughly equivalent for translators to what IDEs are for code writers. Casual translators can benefit from their features but professionals or commited amateurs are the most likely to make the most use of such tools. When OmegaT, free software based forges and Emacs meet, we have a free multi-user translation environment that can easily sustain the (close to) 2 million words load that comprise the manuals distributed with Emacs, along with powerful features like arbitrary string protection for easy typing and QA (quality assurance), automatic legacy translation handling, glossary management, history based or predictive autocompletion, etc. The current trial project for French is hosted on 2 different forges: 1. sr.ht hosts the source files <https://sr.ht/~brandelune/documentation_emacs/> 2. chapril hosts the OmegaT team project architecture <https://sr.ht/~brandelune/documentation_emacs/> The sources are regularly updated with a po4a based shell script. # Outline - Duration: 10 minutes - Software used during the presentation - [po4a](https://po4a.org) a tool to convert documentation formats to and from the commonly used `gettext` **PO** format. po4a supports the `texinfo` format along with many others. - [OmegaT](https://omegat.org) a "computer aided translation" tool used by translators to efficiently combine translation ressources (legacy translations, glossaries, etc.) so as to produce more consistent translations. During the presentation, I will show: - How to use po4a to convert the texi files to the PO format (the org.org file is also converted) - What are the specificities of the Emacs manuals and what difficulties they present to the tanslator - How to address those specificities in OmegaT, with regular expressions - How to use OmegaT features such as arbitrary string protection, legacy translation handling, glossaries, autocompletion, QA, etc. - How to use OmegaT with a team of 2 (or more) translators working at the same time - How to solve translation conflicts I will *not* show: - How to create an OmegaT project - How to setup an OmegaT team project - How to use OmegaT from the command line to work in localization pipelines - How to use machine translation and MT "post-edit" - How to convert back the translated files to texi format - How to install translated texi files for use in Emacshttps://emacsconf.org/2021/talks/omegatJean-Christophe Helary2021-11-27T15:22:00Z10:22enMainTalkMainemacsconf-2021-talk-nongnu0:07Times are approximate and will probably change. # NonGNU ELPA Update Philip Kaludercic NonGNU ELPA was announced last year, as a package repository that will be enabled by default in Emacs, but doesn't require any copyright assignment. This means that a lot of popular packages can now be installed easier, without any additional configuration. In this talk I would like the give a reminder of what NonGNU ELPA is and how it works, update the participants on what has happened since last year and what maintainers have to do if they want their packages to be added to the repository.https://emacsconf.org/2021/talks/nongnuPhilip Kaludercic2021-11-27T15:35:00Z10:35enMainTalkMainemacsconf-2021-talk-borg0:10Times are approximate and will probably change. # Manual Package Management in The Era of Repositories - Why and How Dhavan (codingquark) Emacs now has many package repositories - enought to have conflicts and arguments about. The packages are becoming big, they depend on many other packages and it is not easy to keep track of what all is being installed in our Emacsen. An aggressive way out of this is to use Yet Another Package and install all elisp code manually - with borg[1]. [1]: <https://github.com/emacscollective/borg> # Outline - 5-10 minutes: (brief description/outline) 1. What are we trying to solve? 2. What is borg? 3. How to use it? 4. Assimilate a package for demohttps://emacsconf.org/2021/talks/borgDhavan (codingquark)2021-11-27T15:48:00Z10:48enMainTalkMainemacsconf-2021-talk-telega0:08Times are approximate and will probably change. # telega.el and the Emacs community on Telegram Gabriele Bozzola and Evgeny Zajcev Telegram is a cross-platform instant messaging system. The large number of features and the widespread adoption make it a good choice for both private conversations with friends and for large online communities. In this talk, I am going to present the Emacs community on Telegram and its initiatives. I am also going to discuss telega.el, the Emacs client for Telegram. telega.el is a high-quality package that perfectly integrates in Emacs. It supports the vast majority of the features supported by the official clients, while adding several unique ones. In the talk, I will present the package and highlight some of the most important features.https://emacsconf.org/2021/talks/telegaGabriele Bozzola and Evgeny Zajcev2021-11-27T16:01:00Z11:01enMainTalkMainemacsconf-2021-talk-nangulator0:10Times are approximate and will probably change. # Introducing N-Angulator Kevin Haddock The Unix file system is essentially an N-dimentional sparse array that currently lacks a decent editor and browser which can effectively leverage the logical tri-angulation (or, more properly "n-angulation") of atoms/blobs within it. N-Angulator is the genesis, to wit, the "Model-T," of such a program. (see google drive link below for a very old uncirculated prototype video demo. Be sure and turn the volume UP!) na.intro.flv <https://drive.google.com/file/d/1EZN0Xs8eGlEbSIYFml2lp3GCNnmLQa98/view?usp=drive_web> # Outline - 5-10 minutes: (brief description/outline) The reconceptualization of the Unix file system as the N-Dimensional sparse array will be discussed. A simple pre-existing database will be queried. If time, questions will be entertained by video/audio and/or IRC.https://emacsconf.org/2021/talks/nangulatorKevin Haddock2021-11-27T16:14:00Z11:14enMainTalkMainemacsconf-2021-talk-janitor0:20Times are approximate and will probably change. # A day in the life of a janitor Stefan Monnier Because of a reckless former Emacs maintainer that shall better stay unnamed, ELisp has seen a fair bit of churn in the last 10 years, making it necessary to clean up "old" code [in order to open up the road for yet more recklessness? ]. In this documentary we will follow a famous janitor in his every day job dealing with the aftermath of the cl-lib / lexical-binding party. - ~20 minutes Here really, I'm not sure how much time this will take. I put 20 minutes because I think I might be able to fill that and I think more than that could turn too boring. I intend to make it a "live coding" kind of thing, without anything like an outline: it's basically "make" followed by fixing the warnings.https://emacsconf.org/2021/talks/janitorStefan Monnier2021-11-27T16:39:00Z11:39enMainTalkMainemacsconf-2021-talk-maintainers0:10Times are approximate and will probably change. # How to help Emacs maintainers? Bastien Guerry After 11 years of helping as the Org maintainer, I would like to share a few lessons learned. My goal is help everyone take care of Emacs maintainance by taking care of Emacs maintainers. # Outline - 5-10 minuteshttps://emacsconf.org/2021/talks/maintainersBastien Guerry2021-11-27T16:52:00Z11:52enMainTalkMainemacsconf-2021-talk-gregorian0:10Times are approximate and will probably change. # Typesetting Gregorian Chant with Emacs Spencer King There are a variety of methods for typesetting gregorian chant scores and outputting high-quality sheet music. One of these is a tool called Gregorio, which integrates with LaTeX allowing scores to be cleanly inserted into other documents. All Gregorio files are plain text, allowing them to easily be shared with other users and managed with a version control system. In this talk, I will give a brief overview of the Gregorio tool and then show how it can be used in Emacs by typesetting a simple score. All code and examples will be made available to help new users get started with typesetting their own scores. # Outline - 5-10 minutes: (brief description/outline) 1. Introduction to chant music 2. Introduction to Gregorio 3. Example of typesetting a score in Emacs 4. Code and example availabilityhttps://emacsconf.org/2021/talks/gregorianSpencer King2021-11-27T17:30:00Z12:30enMainTalkMainemacsconf-2021-talk-montessori0:10Times are approximate and will probably change. # Emacs and Montessori Philosophy As a former Montessori guide and now parent, I often think about the relationship of this particular educational philosophy and how it manifests in my work with software, Emacs in particular. This talk introduces the concept of Emacs as an educational environment and how it expresses elements of Montessori psychology regarding "Human Tendencies". Human tendencies are innate drives present in everybody that allow us to explore and make sense of our world. # Outline - 5-10 minutes: (brief description/outline) Quick overview of a Montessori classroom environment: - the adults or guides primarily observe and present material - the children are free to explore materials as they choose (within limits) - the environment itself is prepared specifically to foster engagement Enumerate the "Human Tendencies": - Abstraction - Activity - Communication - Exactness - Exploration - Manipulation (of the environment) - Order - Orientation - Repetition - Self-Perfection - Work (also described as "purposeful activity") How does Emacs express these things? - in the short version, pose the question, and perhaps give one example. - Emacs is an environment that provides facilities for individuals to find their way to proficiency through their Human Tendencies. - We are all both learners and guides, Emacs is our classroomhttps://emacsconf.org/2021/talks/montessoriGrant Shangreaux2021-11-27T17:43:00Z12:43enMainTalkMainemacsconf-2021-talk-erg0:15Times are approximate and will probably change. # Emacs Research Group, Season Zero: What we did together with Emacs in 2 hours a week for a year Noorah Alhasan, Joe Corneli, Raymond Puzio, Leo Vivier The four of us met at EmacsConf 2020, and joined together around a common interest in Emacs and research. Since then, we have convened as the Emacs Research Group for weekly meetings. During these meetings, we took notes collaboratively, using a ‘conflict-free replicated data type’ package (crdt.el); at the end of each session, we debriefed using a template that we call a Project Action Review (PAR). As as a meta-review of our sessions, every six weeks we prepared a Causal Layered Analysis (CLA), which gave us a different perspective on what we had done. We reflected further on our experiences and methods, linking our CLA to plans and design patterns. As a formal research output, we contributed a write-up of these matters to a joint paper which we presented at the Pattern Languages of Programs Conference (PLoP 2021). The paper included an interactive workshop, in which we explored roles in real-time problem solving and collaboration. In our short talk we share information about these methods, making a case for other people getting together and creating their own small research communities similar to ours.https://emacsconf.org/2021/talks/ergNoorah AlhasanJoe CorneliRaymond PuzioLeo Vivier2021-11-27T18:01:00Z13:01enMainTalkMainemacsconf-2021-talk-cs0:10Times are approximate and will probably change. # One effective CS grad student workflow Greg Coladonato When I was an undergrad, I learned many things, most of which I forgot. In the time since then, I've discovered Org Mode, Org Roam, Org Noter, Org Ref. PDF Tools, and Anki. I would like to share my approach for capturing all the information that comes my way as a MS CS student at Georgia Tech, in the hopes that I can both get feedback on ways to improve the system I use, as well as hopefully inspire others to build workflows that make them more productive. # Outline - 5-10 minutes: Go through some typical workflows associated with being a grad student, using the packages mentioned in the abstract.https://emacsconf.org/2021/talks/csGreg Coladonato2021-11-27T18:14:00Z13:14enMainTalkMainemacsconf-2021-talk-professional0:11Times are approximate and will probably change. # Using Org-Mode For Recording Continuous Professional Development Philip Beadling I recently had the pleasure of being audited for my CPD record with one of the large engineering professional bodies. I decided to harness org-mode's TODO lists to record CPD items and my progress against them completely within Emacs. I also wanted the ability to export the data in a well presented, compact format for auditing submission. The project was a success (I passed the audit) and the resulting system integrates really well into my wider daily Emacs workflow, making future CPD recording seamless. The talk will explain how I tweaked and extended org-mode to get it to record the data I wanted, followed by a demo. A basic demo org file with embedded elisp can be seen here: <https://raw.githubusercontent.com/falloutphil/Misc/master/cpd.org> A basic generated PDF from the basic demo is here:  I have a much more involved example I could also use for the demo. The template contains a few examples. Examples are Goals that are split up into Activities. All Activities must have a Goal, and within a Goal all activities must be complete for the Goal to be automatically set to complete. It's basically leveraging Org Capture Templates to create custom Goals and Activities. On save or update these are then rendered into a table using Column View. Activities are sorted by date they were completed on. The Column View is pre-configured to be exported to PDF in a condensed but readable format for submission. It stays fairly readable even when the pages get busy. The elisp required is all under the "Config" bullet and Emacs will ask to execute it on opening the Org file. The elisp concerns itself with nice custom org capture functions and a few functions to ensure nice formatting on export, etc. # Outline - 5-10 minutes: A quick walkthrough of the setup and functions, followed by a demo of how to add CPD items, and update them. Finally show generation of a PDF containing all the items tabulated and ready for audit review. I estimate this at approx 10 minutes.https://emacsconf.org/2021/talks/professionalPhilip Beadling2021-11-27T18:28:00Z13:28enMainTalkMainemacsconf-2021-talk-tech0:11Times are approximate and will probably change. # Creating technical API documentation and presentations using org-babel, restclient, and org-treeslide Jan Ypma The emacs org-babel package is often mentioned in conjunction with literate programming. The ability to mix code segments with prose indeed offers an intuitive way to augment semantic code pieces with textual descriptions. In recent projects, I've started to turn to org-mode as the primary format to maintain technical documentation, as well as slides for a technical language course. By using org-babel to pull in "live" code for REST requests, language examples, and shell scripts, one can be sure that the documentation and slides are never out of date. The session will show how leverage org-babel, restclient and org-treeslide to write and present technical documentation with style. # Outline - Introduction - Demo: Developer guide - Demo: REST API guide - Demo: Presentations - Used packages and configurationhttps://emacsconf.org/2021/talks/techJan Ypma2021-11-27T18:42:00Z13:42enMainTalkMainemacsconf-2021-talk-exec0:10Times are approximate and will probably change. # Org as an executable format Tom Gillespie Org mode is known for its flexibility, power, and staggeringly diverse number of workflows, users, and use cases. This talk explores just how far we can push the boundaries of the sane and sensible with regard to Org workflows. In particular it will discuss shebang blocks, and elvs: two parts of a complete system for creating executable Org files. Org syntax does not support shebang lines. However, it turns out that Org syntax enables something even better &#x2014; shebang blocks. Org is also (supposedly) not an executable file format. However, by combining a shebang block with a Org babel source block, and eval local variables (elvs) Org becomes a multi-language executable format. In this talk we introduce shebang blocks and elvs as a two part system that transforms Org files into executable documents that can run on any recent version of Emacs. These ideas are implemented in <https://github.com/tgbugs/orgstrap/blob/master/README.org> and <https://github.com/tgbugs/orgstrap/blob/master/shebang.org>, and orgstrap.el is available as a package on MELPA and can be installed via M-x install-package orgstrap. The talk will open with a demo of how to create an executable Org file using the orgstrap machinery. We then discuss security considerations, and show example use cases. Finally the talk will cover the details and development of the portable shebang block for Org mode that works on a wide variety of systems and shells, and on the development of a formal specification and a reference implementation for using Org source blocks to transform Org files from plain text documents with a bit of markup into self describing computational documents, or interactive applications. # Outline - 5-10 minutes: A demo of adding the orgstrap block and elvs, adding a shebang block, and then running an org file.https://emacsconf.org/2021/talks/execTom Gillespie2021-11-27T18:55:00Z13:55enMainTalkMainemacsconf-2021-talk-org-outside0:10Times are approximate and will probably change. # The use of Org mode syntax outside of GNU/Emacs Karl Voit With the rising interest in Org mode, the GNU/Emacs community gained much momentum in the last decade. Being a nicely designed lightweight markup language, Org mode does not only benefit users of GNU/Emacs. There are many tools and services supporting Org mode syntax documents that do have no direct connection to GNU/Emacs. I would like to elaborate on the advantages on using Org mode syntax for arbitrary text outside of GNU/Emacs for better typing usability and collaboration tasks. # Outline - 5-10 minutes: (brief description/outline) This can only be a short teaser for the use of Org mode syntax without much comparison to other lightweight markup languages. For this audience, I do think that this would be too short because most attendees might already have heard the rumors that Org mode is great or they have adapted Org mode in their workflows already.https://emacsconf.org/2021/talks/org-outsideKarl Voit2021-11-27T19:08:00Z14:08enMainTalkMainemacsconf-2021-talk-teach0:20Times are approximate and will probably change. # Using Org-mode to teach programming Daniel German In this presentation I will explain how to use org-mode effectively to prepare teaching materials, and how to present them. For the last 5 years I have been using org-mode to teach programming in different languages: C++, SQL, Ruby, Python, SML and Scheme. Org-mode has three key advantages: 1. it supports most programming languages with a common interface, 2. it is an interactive medium for delivering teaching materials; and 3. it is an always-up-to-date format that does not need to be exported in order to be published. I explain how I use org-mode in my courses and how I combine org-mode notes other tools such as github org-mode to get always up-to-date teaching materials that one can use for both teaching and studying (see <https://github.com/dmgerman/csc116ModernCplusplus/blob/master/lectures/l-01-1-intro/01_1_intro.org> for an example). Finally, I will discuss some important aspects to consider when using org-mode for this purpose. # Outline 20 minutes: - Introduction - Quick demonstration - Workflow - Emacs configuration - Important considerations - How to get started Oh, I made a small mistake. I meant to propose a 40 minutes presentation. But I can give a quicker 20 minutes too.https://emacsconf.org/2021/talks/teachDaniel German2021-11-27T19:33:00Z14:33enMainTalkMainemacsconf-2021-talk-research0:05Times are approximate and will probably change. # Managing a research workflow (bibliographies, note-taking, and arXiv) Ahmed Khaled Researchers and knowledge workers have to read and discover new papers, ask questions about what they read, write notes and scratchwork, and store much of this information for use in writing papers and/or code. Emacs allows us to do all of this (and more) using simple text interfaces that integrate well together. In this talk I will talk about the following: a. Using elfeed and elfeed-score to read new papers from arXiv. b. Using org-ref to import arXiv papers of interest into a local bibliography. c. Using Emacs hooks with biber and rebiber in order to keep the local bibliography clean and up-to-date with conference versions of papers. d. Using org-roam and org-roam-bibtex to take linked, searchable notes in org on research papers. This text-based workflow allows for keeping everything accessible under version control and avoids the platform lock-in of binary formats (e.g. Mendeley). I will share my Doom Emacs configuration for this workflow, but it is not limited to Doom. # Outline - 5-10 minutes: I will demo the packages I use in 5 minutes.https://emacsconf.org/2021/talks/researchAhmed Khaled2021-11-27T19:42:00Z14:42enMainTalkMainemacsconf-2021-talk-babel0:10Times are approximate and will probably change. # Babel for academics Asilata Bapat Plain org-mode is already an extremely powerful and customisable tool for task and time management, note-taking, calendar and agenda management, and much more. Babel takes org a step further by letting you write, evaluate, and export code in different languages from within a single file. In this talk, I will highlight some features of babel that I find exciting and extremely useful, particularly for an academic workflow. Getting started with babel can be intimidating, but it's hard to stop using it once you start. As an academic, I typically don't manage large coding projects. My primary purpose is writing lecture notes, assignments, and papers, and managing related admin. Typically, I want to try and automate the boring portions of my workflow without extra overhead. I also tend to find various tasks easier in some programming languages and harder in others, and prefer to mix and match languages as the task dictates. Babel makes this process seamless. A basic use case is writing a document in org-mode and exporting it to LaTeX or HTML. Org-mode even lets you write multiple documents in a single org file, which can be convenient. Babel lets you add all sorts of enhancements to the same file. For example, suppose we have a single org document with all the problem sets for a course. Within this single file, we could now: - draw pictures in ditaa, graphviz, or python instead of LaTeX, - use python to do complex calculations and then output the result as LaTeX, - define skeletons to quickly draw up assignment templates, - toggle exporting of assignments with or without solutions based on tags, - locally change export settings or run a post-export hook, - automatically export to LaTeX after saving, - tangle code blocks from some or all of the languages to external files. I will try to showcase features of babel that academics could find helpful, by presenting some ways in which I have tried to use babel. I would also like to be inspired by other people's babel workflows! # Outline - 5-10 minutes: (brief description/outline) For a 5-10 minute presentation I will give a brief intro and present one or two example files that heavily use babel. I will use these examples to highlight some of the features mentioned in the abstract.https://emacsconf.org/2021/talks/babelAsilata Bapat2021-11-27T19:54:00Z14:54enMainTalkMainemacsconf-2021-talk-molecular0:10Times are approximate and will probably change. # Reproducible molecular graphics with Org-mode Blaine Mooers Research papers in structural biology should include the code used to make the images of molecules in the article in the supplemental materials. Some structural bioinformaticists have started to include their computer code in the supplemental materials to allow readers to reproduce their analyses. However, authors of papers reporting new molecular structures often overlook the inclusion of the code that makes the images of the molecules reported in their articles. Nonetheless, this aspect of reproducible research needs to become the standard practice to improve the rigor of the science. In a literate programming document, the author interleaves blocks of explanatory prose between code blocks that make the images of molecules. The document allows the reader to reproduce the images in the manuscript by running the code. The reader can also explore the effect of altering the parameters in the code. Org files are one alternative for making such literate programming documents. We developed a **yasnippet** snippet library called **orgpymolpysnips** for structural biologists (<https://github.com/MooersLab/orgpymolpysnips>). This library facilitates the assembly of literate programming documents with molecular images made by PyMOL. PyMOL is the most popular molecular graphics program for creating images for publication; it has over 100,000 users, which is a lot of users in molecular biology. PyMOL has been used to make many of the images of biological molecules found on the covers of many Cell, Nature, and Science issues. We used the **jupyter** language in **org-babel** to send commands from code blocks in Org files to PyMOL's Python API. PyMOL returns the molecular image to the output block below the code block. An Emacs user can convert the Org file into a PDF, `tangle' the code blocks into a script file, and submit these for non-Emacs users. We describe the content of the library and provide examples of the running PyMOL from Org-mode documents. # Outline - 5-10 minutes: (brief description/outline) - Title slide - Structural Biolog Workflow in the Mooers Lab - Cover images made with PyMOL - Why develop a snippet library for your field? - PyMOL in Org: kernel specification - Creating a conda env and installing PyMOL - Example code block in Org to make DSSR block model of tRNA - Resulting image - Summary - Acknowledgementshttps://emacsconf.org/2021/talks/molecularBlaine Mooers2021-11-27T20:07:00Z15:07enMainTalkMainemacsconf-2021-talk-project0:10Times are approximate and will probably change. # Budgeting, Project Monitoring and Invoicing with Org Mode Adolfo Villafiorita In this talk I will present how we use Org Mode at Shair.Tech for budgeting, project monitoring, and invoicing. We are a small company and we are still tuning and improving the process, but with a bit of Emacs Lisp, the functions Org Mode provides, and reading here and there what other users do, we implemented an effective workflow we have been using for nearly a year, now, and with which we are very happy. Talk duration: &#x2013;> 20 minutes seems to be right (15 talk + questions) &#x2013;> I can also make in 10 minutes, by focusing the talk on budgeting (or monitoring)https://emacsconf.org/2021/talks/projectAdolfo Villafiorita2021-11-27T20:20:00Z15:20enMainTalkMainemacsconf-2021-talk-invoice0:10Times are approximate and will probably change. # Find Your (In)voice: Emacs for Invoicing Bala Ramadurai Ye Freelance warriors, please lend me your I/O devices for 5 minutes. Your time is your money! Do you find it a pain to generate an invoice, record the details into your accounting software and keep track of taxes and payments? You are not alone, I found the whole invoice thingy to be extremely painful. But worry not, Emacs comes to our rescue. My talk will give you a basic intro on how to use org mode, some embedded python code and file jugglery to generate stylistic and professional invoices. What you will learn during the session: - How to track your freelance time using orgmode - How to create the basic infrastructure for invoice generation - How to generate the invoice - How to manage multiple clients - How to enter the finance details into your accounting software - How to track invoice payments We will use the following packages: - Emacs+orgmode (duh?) - yasnippet - python layer (I use spacemacs, so whatever is the equivalent in your config) - Some unnecessary Shakespearean referenceshttps://emacsconf.org/2021/talks/invoiceBala Ramadurai2021-11-27T20:33:00Z15:33enMainTalkMainemacsconf-2021-talk-dashboard0:10Times are approximate and will probably change. # Productivity Dashboards with Emacs and Kindle Mehmet Tekman Since 2008, Amazon have released a new Kindle device every year, supplanting each generation with a newer model that boasts highly promoted incremental features which greatly devalues the price of their older models. These forgotten models are sold on Ebay and other secondhand websites at highly discount prices by owners who do not see the true potential of these devices: Kindles are excellent high contrast low-refresh display rate E-Ink devices, with Wifi capability, that run embedded Linux in the background. Depending on the model, an idle Kindle can last weeks before needing a recharge. This makes them ideal as passive image devices that can be configured easily using a few shell scripts. Indeed, efforts have been made in dedicated hacker forums to expose the Linux filesystem and to enable features such as custom screensavers, SSH networking, and more. By exploiting these features, and by carefully disabling the software/bloatware that comes with the device, these Kindles have found new life as online dashboard devices which can fetch and display information from the internet at timely intervals. Here we describe a tool to control multiple Kindle devices with a single org-mode/shell-based tool, built initially to periodically serve updated Emacs Org-Agenda views, but later expanded to produce online local weather reports and work calendar, Emacs calendars (calfw, org-gcal), daily dietary information (org-calories), Org-Mode sparse TODO trees, miscellaneous image and text content (via imagemagick), small messages, and much more. In this talk, we show how to configure multiple Kindles with any desired custom content, following any daily/weekly schedule, all easily managed from Emacs within a single Org-Mode file. # Outline - 5-10 minutes: 1-3 mins Talk about repurposing Kindles: - Cheap second-hand wifi device, hackable - Low-powered, long battery life, low refresh rate &#x2013; perfect for a dashboard - Timely updated Org-Mode Agendas anyone? - Reference to inspired projects (kindle-dashboard) 2-3 mins Generate content - A static text+picture image easily generated with imagemagick wrapper - An image of a sparse tree of org-mode TODO file - An image of another emacs view (e.g. Calfw, or org-calories) - Show post-processing for optimizing image for Kindles 1-2 mins Configuration in a single org-mode file - Defining Machines - Defining Commands to generate content - Defining Schedules to run Commands on multiple Machines at specific points in the day 1-2 mins Export and Run: - Show exported shell configs and generated cronjobs - Witness multiple Kindles producing desired content with wakeup timershttps://emacsconf.org/2021/talks/dashboardMehmet Tekman2021-11-27T20:46:00Z15:46enMainTalkMainemacsconf-2021-talk-nyxt0:10Times are approximate and will probably change. # Emacs with Nyxt: extend your editor with the power of a Lisp browser Andrea In 2021 browsers are essential if you use a computer. Even if Emacs users love text as a format, they may need to shop and video call from time to time (even more so in a pandemic!). Some of us modified their browsers to at least have the same keybindings as our editor of choice. What if I told you there is an Emacsy browser in the making? What if you could "ace-jump" within a web page? What if you could run a REPL to extend your browser while browsing? What if you could record macros?! The browser exists: its name is Nyxt! In this talk I will share why it has great potential, how you can integrate it with Emacs, and how you can migrate your Emacs mastery to the web! If you were wishing for a Lispy and Emacsy browser, you should not miss this talk! You can learn more about this at: <https://github.com/ag91/emacs-with-nyxt> # Outline - 5-10 minutes: quick demo of running Nyxt from Emacs and a little explanation of the code necessary for integrationhttps://emacsconf.org/2021/talks/nyxtAndrea2021-11-27T20:59:00Z15:59enMainTalkMainemacsconf-2021-talk-design0:10Times are approximate and will probably change. # On the design of text editors Nicolas P. Rougier Text editors are written by and for developers. They come with a large set of default and implicit choices in terms of layout, typography, colorization and interaction that hardly change from one editor to the other. It is not clear if these implicit choices derive from the ignorance of alternatives or if they derive from developers' habits, reproducing what they are used to. Durint this talk, I will characterize these implicit choices and illustrate what are some alternatives using GNU Emacs. # Outline - 10 minutes alternative Mostly a live demo of my environment with pointers to the different packageshttps://emacsconf.org/2021/talks/designNicolas P. Rougier2021-11-27T21:13:00Z16:13enMainTalkMainemacsconf-2021-talk-freedom0:40Times are approximate and will probably change. # How Emacs made me appreciate software freedom Protesilaos Stavrou The theme will be "how Emacs empowered my software freedom". I will outline the key moments in my transition to a GNU/Linux operating system and mark those which eventually contributed towards me becoming an Emacs user, maintainer of a&#x2014;dare I say&#x2014;popular package, and contributor to upstream Emacs (among others). By alluding to personal experiences, I will draw generalisable insights and connect them to what I believe are irreducible qualities of Emacs qua software and Emacs as a community of like-minded people. The talk will be theoretical in nature: there won't be any code-related demonstration nor technical references that only people with a background in computer science would likely recognise. Personal anecdotes shall be tangential to the point and considered as ancillary to the thesis of what Emacs represents from the standpoint of software freedom and user empowerment. The presentation is intended for a general audience that is interested in GNU software in general and Emacs in particular. My formal educational background as a social scientist (i.e. not a programmer) and later as a philosopher informs my approach to this topic. The presentation shall be 40 minutes long. Its text will be in essay form and shall be supplied as complementary material to the video. The notation will be in Org mode. I cannot provide an outline in advance, as it will most likely not be consistent with the actual presentation. If, however, this is absolutely required for administrative purposes I shall furnish one regardless with the proviso that I am in no way bound by it and thus reserve the right to modify it ahead of the main event.https://emacsconf.org/2021/talks/freedomProtesilaos Stavrou2021-11-27T21:53:00Z16:53enMainTalkMainemacsconf-2021-talk-day1-close0:05Times are approximate and will probably change. # Closing remarks day 1https://emacsconf.org/2021/talks/day1-closeEmacsConf2021-11-28T14:00:00Z09:00enMainTalkMainemacsconf-2021-talk-day2-open0:05Times are approximate and will probably change. # Opening remarks day 2https://emacsconf.org/2021/talks/day2-openEmacsConf2021-11-28T14:05:00Z09:05enMainTalkMainemacsconf-2021-talk-faster0:20Times are approximate and will probably change. # How to write faster Emacs Lisp Dmitry Gutov - Before optimizing, benchmark first. - Different benchmarking approaches. - Live evaluation, step-debugging, measuring from a debugger breakpoint. - How to determine if a function is expensive. How to pick one from competing alternatives (cl-lib, seq, dash, lean core). - Print-benchmarking. - Byte-compiled code can give a very different picture, changing where the bottleneck is. How to quickly load a byte-compiled version. - Steps taken to speed up the Xref package recently.https://emacsconf.org/2021/talks/fasterDmitry Gutov2021-11-28T14:30:00Z09:30enMainTalkMainemacsconf-2021-talk-structural0:10Times are approximate and will probably change. # Tree-edit: Structural editing for Java, Python, C, and beyond! Ethan Leba In this talk, I'll discuss a vision for how writing code could be, where the editing operations map directly to the primitives of the language itself -- and my humble attempt of implementing this vision. _tree-edit_ seeks to provides a structural editing plugin supporting conceivably any language with a tree-sitter parser. **Structural editing does not have to be relegated to lisps or niche DSLs.** I liken the state of code editing today to writing assembly. The reason why people like Python more than assembly is that for most purposes, the building blocks of the language are mismatched with our thought process. We don't think in terms of registers and addresses, we think in terms of variables, functions, etc. So when we write and edit code, why do we edit in terms of deleting, inserting, replacing characters &#x2013; not wrapping, inserting, raising, deleting expressions and statements? I'll also discuss the implementation of tree-edit, which uses a novel combination of the fantastic [tree-sitter](https://github.com/emacs-tree-sitter/elisp-tree-sitter) parser with an embedded logic programming DSL ([miniKanren](http://minikanren.org/), using elisp port [reazon](https://github.com/nickdrozd/reazon)) to power it's syntax tree generation. Check out the GitHub repo [here](https://github.com/ethan-leba/tree-edit)! # Outline - Discuss motivation (Why should I care?) - Demonstrate tree-edit (Live-coding with tree-edit) - Demonstrate tree-edit syntax tree generator (Elevator pitch on miniKanren)https://emacsconf.org/2021/talks/structuralEthan Leba2021-11-28T14:43:00Z09:43enMainTalkMainemacsconf-2021-talk-dsl0:20Times are approximate and will probably change. # Self-Describing Smart DSL's: The Next Magits Psionic When we begin programming, the promise is to automate away repetitive tasks in life. As those program's capability grows, we begin to need configuration UI's. We can start with a CLI, but as any CLI grows, we run into the following issues: - As options pile up, the intuition of simplicity is lost in helps and manpages - Stateless operation has no idea what to do next and loses terseness - Frequent dispatch of commands to interrogate state required for the operator to decide what action to perform - Composition compounds with all of these issues Magit has the UI trifecta of being terse, intuitive, and intelligent. Magit's UI input library, Transient, is a standalone package for developing more killer UI's, and not just for CLI applications, but also for server applications, Emacs applications, and Emacs itself. While Transient's potential is to create the most highly productive UI's short of thought control, going beyond simple command dispatchers requires a deeper dive. When we think like constructing a DSL for the task and using transient to input that DSL, we get an intelligent, self-describing modal programming system. # Outline - Updates to Transient documentation and demos of API examples - Wrapping a custom CLI tool in Transienthttps://emacsconf.org/2021/talks/dslPsionic2021-11-28T15:06:00Z10:06enMainTalkMainemacsconf-2021-talk-ui0:10Times are approximate and will probably change. # "Yak-shaving to a UI framework" (/"Help! I accidentally yak-shaved my way to writing a UI framework because overlays were slow") Erik Anderson Tui.el is a textual User Interface (UI) framework for Emacs Lisp modeled after the popular JavaScript 'React' framework. This package implements React Component API's with the goal of simplifying development of interactive UI's for all Emacs users- regardless of their prior experience with React or web programming. Components provide a useful functional unit for constructing complex interfaces declaratively and also eliminate much of the burden associated with updating textual content as application state changes. This talk will cover use of the tui.el API and its operation in a textual environment by implementing some basic UI's. # Outline - 5-10 minutes: - Problem space: UI implementation complexity. - API introduction: Displaying content, Components. - Visual taste of dashboards and applications built with tui.https://emacsconf.org/2021/talks/uiErik Anderson2021-11-28T15:19:00Z10:19enMainTalkMainemacsconf-2021-talk-rust0:20Times are approximate and will probably change. # Extending Emacs in Rust with Dynamic Modules Tuấn-Anh Nguyễn Dynamic module support has been available since Emacs 25. It can be used to extend Emacs with native libraries, for performance, OS-specific features, or other functionalities that would take a lot of time to re-implement in Lisp. The officially supported language is C, which is tedious and error-prone to use. This talk discusses a **safe** alternative that is also a lot **more convenient**: writing these dynamic modules in Rust. # Outline - Walking through creating **a simple dynamic module** in Rust, including setting up CI. - Going through and explaining the **available APIs**.https://emacsconf.org/2021/talks/rustTuấn-Anh Nguyễn2021-11-28T15:44:00Z10:44enMainTalkMainemacsconf-2021-talk-eaf0:10Times are approximate and will probably change. # Emacs Application Framework: A 2021 Update Matthew Zeng Emacs Application Framework (EAF) is a customizable and extensible GUI application framework that extends Emacs graphical capabilities using PyQt5. There are many new but important updates since EmacsConf2020 last year, this talk will briefly go over them. # Outline - 5-10 minutes: (brief description/outline)https://emacsconf.org/2021/talks/eafMatthew Zeng2021-11-28T15:58:00Z10:58enMainTalkMainemacsconf-2021-talk-model0:10Times are approximate and will probably change. # Extending the "model" of Emacs to other applications Laszlo Krajnikovszkij Emacs is a great operating environment in a sense that it provides consistency across different tools and applications within the Emacs ecosystem, as well as external apps that can be integrated into it. It is also the most truly malleable environment, each element of which can be adjusted or extended, therefore providing the user with more power and freedom in personal computing. Emacs definitely can be considered one of greatest software products in existence. As a non-programmer, having had the chance to stumble upon Emacs a couple of years ago, the only regret to have is that it didn't happen earlier. The definite killer feature of Emacs - Org-mode, is what draws many of the less technical folks to join the party and gradually start to use Emacs for writing documents, whether personal or work related, manage tasks, emails and potentially everything else. The learning curve and difference in approach, however, leaves some potential users too scared of the arcane interface even with all it's quirks and features because it requires at least some technical skills to understand and use properly, and does not have an easy way to connect with external tools that most people are forced to use for work. This talk proposes some ideas about how the model of Emacs, it's focus on consistency, extensibility, as well as it's powerful interaction model can be carried over to make modern interfaces, whether desktop or web applications, that would be designed with a goal of reflecting the spirit of Emacs in terms of the aforementioned features it possesses, and therefore enhance the capabilities of the Emacs, while at the same time utilizing it as a backend for text-processing and editing to a large extent. It would be really great to have a personal web-interface for using modern task management tools, chats, emails and such, but from a UI defined by the user. The goal is to use it on a desktop or mobile, locally or self-hosted on a server, with support for touch and gesture-based workflows, while preserving the Emacs philosophy and allowing to seamlessly switch between Emacs and its web extension The proposed solution is to integrate more of the modern tools with Emacs, utilize Org-mode as a way to define application-specific parameters for these tools through Org properties, and then utilize these parameters for making a modern local frontend that would enhance Emacs UI while allowing to use external tools in a more personal and freedom respecting way (making the originals obsolete over time). The talk serves the purpose of inviting community members to a discussion about how Emacs can become more modern, more approachable by people who don't possess the neccessarry technical skills to adjust it themselves, but are keen to learn it, and potentially how to attract more users to greater productivity, computer literacy and the ideas of free software. # Outline - 5-10 minutes - Introduction - Issues with most modern tools for work - Issues with Emacs as a tool for work - In search for a hybrid approach - User controlled web-apps - Opinions encouraged - Contactshttps://emacsconf.org/2021/talks/modelLaszlo Krajnikovszkij2021-11-28T16:11:00Z11:11enMainTalkMainemacsconf-2021-talk-devel0:20Times are approximate and will probably change. # Don't write that package! or: How I learned to stop worrying and love emacs-devel Stefan Kangas We need a successful Emacs on this planet. This means that we need an excellent out-of-the-box experience -- one that just works, but that you can still hack and customize. There is so much great experimentation and work going on out there in the wider Emacs community, but we would be even better off if more of that could go into Emacs itself. Emacs' greatest strength is unfortunately sometimes also its greatest weakness: it is *too* hackable. On occasion, people out there add stuff to their Init file to fix this or that annoyance, or even bug. The more ambitious might go on to package up such fixes: "Hey, 'foo-mode' doesn't have support for 'bookmark-set', let's write a package!" I am here to suggest that you should not do that. You should submit a patch to Emacs! Maybe more people have that same problem or annoyance, and would benefit from your solution? It is sometimes perceived as hard to contribute to Emacs core. I want to encourage more people to get involved, and show that the barrier to entry is really not that high. If I can do it, you can do it too! So should you really write that package, or should you stop worrying and learn to love emacs-devel? Listen to my talk to find out more!https://emacsconf.org/2021/talks/develStefan Kangas2021-11-28T16:36:00Z11:36enMainTalkMainemacsconf-2021-talk-bindat0:20Times are approximate and will probably change. # Turbo Bindat Stefan Monnier # Table of Contents Bindat is an ELisp library to help manipulate binary data. This is a niche library that is used by packages such as Websocket, EMMS, and cpio-mode. Its implementation was repeatedly caught harassing hapless kitten while at the same time providing poor service slowly. For Emacs-28, Bindat was rewritten so as to make it more efficient and flexible while respecting the kitten. In this presentation I intent to show how we saved those. Not recommended for birds. - ~20 minutes: 5 min: Intro and presentation of Bindat 5 min: Showcase some of its problems 5 min: Present the new design 5 min: Examples of what can be done with ithttps://emacsconf.org/2021/talks/bindatStefan Monnier2021-11-28T17:40:00Z12:40enMainTalkMainemacsconf-2021-talk-native0:40Times are approximate and will probably change. # Emacs Lisp native compiler, current status and future developments Andrea Corallo Emacs Lisp (Elisp) is the Lisp dialect used by the Emacs text editor family. GNU Emacs is traditionally capable of executing Elisp code either interpreted or byte-interpreted after it has been compiled to byte-code. In this talk I'll discuss the Emacs Lisp native compiler. This feature recently merged into the main Emacs development line allow for automatically compiling and executing Elisp as native code. During the presentation I'll touch on: - design goals - compiler and runtime design and implementation - performance implications - upstream process - area of improvements and future developments Format: 40 minuteshttps://emacsconf.org/2021/talks/nativeAndrea Corallo2021-11-28T18:27:00Z13:27enMainTalkMainemacsconf-2021-talk-form0:10Times are approximate and will probably change. # Old McCarthy Had a Form Ian Eure Most practical languages are multi-paradigm, offering several abstractions for the programmer. But did you know that Emacs Lisp comes with a powerful system for object-oriented programming? Join me for a discussion of EIEIO, and learn how it can help you write more modular, flexible Emacs Lisp. # Outline - 5-10 minutes: (brief description/outline) - What is CLOS/EIEIO? - Why would I want OOP in Emacs Lisp? - How is the CLOS object model different from C++/Java/.NET? - Further readinghttps://emacsconf.org/2021/talks/formIan Eure2021-11-28T18:41:00Z13:41enMainTalkMainemacsconf-2021-talk-test0:05Times are approximate and will probably change. # Test blocks Eduardo Ochs In this presentation I will show an idea that feels completely obvious once we see it, but that only occured to me after after using Emacs and eev as my main interface to the computer for more than 20 years. Take any interpreted language that supports multi-line comments, and whose interpreter can be run in an Emacs buffer - for example Lua, Haskell, Python, or Julia; let's say just "Lua" from here on for simplicity. So: suppose that we have a Lua script that we wrote, that is called "foo.lua" and that defines lots of functions and defines the classes Bar and Bletch. We can put after the definition of the class Bar a multi-line comment that contains an eepitch block that when executed starts a Lua interpreter, loads the script foo.lua (by running 'dofile "foo.lua"'), and then has several tests for that class and its methods; and we can put another block with tests like that after the class Bletch, and other blocks after some functions. Eepitch allows sending these tests line by line to the Lua interpreter by typing <f8\> on each line that we want to send, and this lets us create tests that are very easy to understand even without writing comments; this gives us a very quick way to document code by executable tests, that is super-great for experimental code that is still going to change a lot before running the risk of being read by other people. These multi-line comments with eepitch blocks that run an interpreter and make it load the current file are called "test blocks". The command \`M-x eeit' inserts a test block at point, using the major mode to decide the right syntax to use for the multi-line comments and for the "dofile". We can configure the syntax of the test blocks for the current major mode by running \`M-x find-eeit-links'; this can also be used to add support for test blocks to more languages (or, more precisely: to more major modes). Eduardo Ochs <http://angg.twu.net/emacsconf2021.html>https://emacsconf.org/2021/talks/testEduardo Ochs2021-11-28T18:49:00Z13:49enMainTalkMainemacsconf-2021-talk-bug0:20Times are approximate and will probably change. # Let's talk about bug trackers Bastien Guerry For 17 years, the Org developers didn't use a bug tracker, shamelessly failing the Joel Spolsky test. Why was it "good enough"? Why was it wrong? Why did we move to Woof!? Why Woof! is not a bug tracker? - 20 minuteshttps://emacsconf.org/2021/talks/bugBastien Guerry2021-11-28T19:16:00Z14:16enMainTalkMainemacsconf-2021-talk-bidi0:20Times are approximate and will probably change. # Perso-Arabic Input Methods And BIDI Aware Apps Mohsen BANAN -- محسن بنان Emacs is a multilingual user environment. A true multilingual editor must support bidirectionality and shaping of characters. Perso-Arabic scripts require both of these features. Starting with Emacs 24, full native bidi (bidirectional) support became available. For many years prior to that Unicode support was available and by around year 2000, reasonable open-source shaping libraries were also available. With these in place at around 2012, I developed two Persian input methods for emacs. These input methods or variations of them can also be used for Arabic and other Perso-Arabic scripts. With all of these in place, Emacs has now become the ne plus ultra Libre-Halaal and Convivial usage environment for Perso-Arabic users. Since emacs comes loaded with everything (Gnus for email, Bbdb for address books, XeLaTeX modes for typesetting, org-mode for organization, spell checkers, completion systems, calendar, etc.), all basic computing and communication needs of Perso-Arabic users can be addressed in one place and cohesively. In this talk I will demonstrate what a wonderful environment that can be. My talk will be in two parts. In Part 1, I cover Persian input methods. With an emphasis on "Banan Multi-Character (Reverse) Transliteration Persian Input Method". The software is part of base emacs distribution. Full documentation is available at: Persian Input Methods For Emacs And More Broadly Speaking شیوه‌هایِ درج به فارسی‌ <http://mohsen.1.banan.byname.net/PLPC/120036> In Part 2, I'll demonstrate that Emacs is far more than an editor. Emacs can be a complete Perso-Arabic usage environment. I will also cover the ramifications of bidi on existing emacs applications, including: - Spell Checking, Dictionaries And Completion Frameworks: - Existing emacs facilities can be extended to cover Perso-Arabic. - Gnus: - Perso-Arabic rich email sending in HTML. - Ramifications of bidi on from:, to: and subject: lines. - Bbdb: Ramifications of bidi on display and completion. - Calendar: - Ramifications of bidi on display. - Use of Persian text for Persian (solar) calendar. - Use of Arabic text for Muslem (lunar) calendar. - AUCTeX: Persian typesetting with XeLaTeX - Option of having right-to-left Perso-Arabic aliases for all latex commands. References: - Persian Input Methods: <http://mohsen.1.banan.byname.net/PLPC/120036> <http://www.persoarabic.org/PLPC/120036> -- Persian Input Methods Access Page <http://www.persoarabic.org> -- Various Perso-Arabic resources <http://www.freeprotocols.org/Repub/fpf-isiri-6219> -- Re-Publication Of Persian Information Interchange and Display Mechanism, using Unicode <https://github.com/bx-blee/persian-input-method> -- Git repo for persian.el -- Quail package for inputting Persian/Farsi keyboards - BIDI: <http://www.unicode.org/reports/tr9/> -- Annex #9 of the Unicode standard <https://www.gnu.org/software/emacs/manual/html_node/elisp/Bidirectional-Display.html> Emacs Bidirectional Display - Blee and Persian-Blee: <https://github.com/bx-blee/env2> -- Very messy work-in-progress git repo for: Blee: By* Libre-Halaal Emacs Environment <http://www.by-star.net> -- A Moral Alternative To The Proprietary American Digital Ecosystem <http://mohsen.1.banan.byname.net/PLPC/120033> -- Nature of Polyexistentials: Basis for Abolishment of The Western Intellectual Property Rights Regime <http://mohsen.1.banan.byname.net/PLPC/120039> -- Defining The Libre-Halaal Label - Mohsen BANAN -- محسن بنان: <http://mohsen.1.banan.byname.net/> -- Globish <http://mohsen.1.banan.byname.net/persian> -- Farsi <http://mohsen.1.banan.byname.net/french> -- Frenchhttps://emacsconf.org/2021/talks/bidiMohsen BANAN2021-11-28T19:41:00Z14:41enMainTalkMainemacsconf-2021-talk-mold0:10Times are approximate and will probably change. # Moldable Emacs, a step towards sustainable software Andrea We could learn about things better. Mountains of knowledge hide in places we cannot access or use. The more we write down, the more it takes to find and understand things we find useful. Knowledge (web, software, books) keeps growing faster and faster! This is not sustainable: we cannot keep up with it! What if we repeat the error of somebody else, only because it would take too much reading to know? What if that knowledge is in some code we work with everyday? Moldable development is a paradigm shift that attempts to solve this problem. In a gist, the tool you use should let you create special tools to learn smartly from what you have already. Since we use Emacs, let's make our great editor moldable! This talk shows my progress in making Emacs closer to such a tool. We are going to see how we can mold structured (and maybe even natural) text to learn better, how we can inject notes in our projects and how self documenting this tool is! I aim to inspire you to find a quicker way to learn from our digital world! You can learn more about this at: <https://github.com/ag91/moldable-emacs> # Outline - 5-10 minutes: quick demo of moldable-emacshttps://emacsconf.org/2021/talks/moldAndrea2021-11-28T19:55:00Z14:55enMainTalkMainemacsconf-2021-talk-clede0:20Times are approximate and will probably change. # CLEDE the Common Lisp Emacs Development Environment. Fermin MF I've been developing a package that helps with the development of Common Lisp's software, it's uses the internal semantic framework, it has a custom reader and integration for common Emacs packages (like Sly and the internal inferior-lisp-mode). The idea is to supply features that other language with and static analyzer have, like refactoring and code generation. For more details: <https://gitlab.com/sasanidas/clede> - 20 minutes: It seems like not too much people knows about semantic, so I can summarize some of it in 10 minutes and then An explanation on how to use the package, how to extend it and the future of it.https://emacsconf.org/2021/talks/cledeFermin MF2021-11-28T20:22:00Z15:22enMainTalkMainemacsconf-2021-talk-imaginary0:10Times are approximate and will probably change. # Imaginary Programming Shane Mulligan Imaginary Programming (IP) is both methodology and paradigm. It is an extension of literate programming and a way of creating software without the use of imperative, functional or even declarative code. Yet IP employs all disciplines to achieve the miraculous. The only contingency is on one or more language models, known as foundation models. The real value of IP is not found by abandoning sound logic altogether, but in weaving the real with the imaginary. The future of imaginary programming is one in which almost all of computing is inferred. I have built a suite of tools based on emacs for interfacing real programming languages with imaginary ones; all of this in order to demonstrate what I mean; a ‘complex’ terminal that lets you imagine what happens no matter how nested you are within interpreters, an example-oriented language, a file format that encodes the provenance of text and a library for imaginary functional programming primitives called iLambda. It is important to recognise IP because, for lack of a better term, it has far-reaching implications for intellectual property and the GPL. Please keep an open mind. # Outline - 5-10 minutes: - a 5 minute introduction to imaginary programming, followed by - a demonstration of iLambda. - iλ, a family of imaginary programming libraries <https://mullikine.github.io/posts/designing-an-imaginary-programming-ip-library-for-emacs/> IRC libertyprime at #emacs on libera Shane Mulliganhttps://emacsconf.org/2021/talks/imaginaryShane Mulligan2021-11-28T20:36:00Z15:36enMainTalkMainemacsconf-2021-talk-build0:20Times are approximate and will probably change. # How to build an Emacs Fermin MF This is a deep dive in the Emacs philosophical and technical aspect on what makes our beloved GNU Emacs what it it. It's also a talk about the early LISP machines and fascinating were those days of experimentation and engineering. It will continue with the Emacs benefits/trade-offs from an user/developer stand points, what things can be improved and what can be an hypothetical path on how to build a software that can also be called Emacs. As a last part, I'll talk about CEDAR, an Emacs that I've been developing in Common Lisp, the project goals and the challenges. For more details about CEDAR: <https://gitlab.com/sasanidas/cedar> - 40 minutes: A dive into the Emacs/Lisp machines history, what makes GNU Emacs an Emacs and how you can build an Emacs.https://emacsconf.org/2021/talks/buildFermin MF2021-11-28T21:03:00Z16:03enMainTalkMainemacsconf-2021-talk-forever0:40Times are approximate and will probably change. # M-x Forever: Why Emacs will outlast text editor trends David Wilson The computer software industry has seen many "popular" text editors come and go, often due to the mercurial fashions of software development. In this talk, we'll take a look at why popular editors fade and the specific aspects of Emacs that will ensure it remains relevant regardless of mainstream popularity. # Outline - Discuss the core thesis, the features that make Emacs desirable for long-term use (extensibility, day-to-day 'life' features) - Include more background on the text editor landscape and how the scope of various editors is more narrow and doesn't compare to Emacs. - Talk about specific instances where editors were popular, fell out of popularity, and why (due to changing fashions, not usually better features).https://emacsconf.org/2021/talks/foreverDavid Wilson (System Crafters)2021-11-28T21:50:00Z16:50enMainTalkMainemacsconf-2021-talk-day2-close0:10Times are approximate and will probably change. # Closing remarks day 2https://emacsconf.org/2021/talks/day2-closeEmacsConf