path: root/2022/info/rde-after.md

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<a name="rde-mainVideo-transcript"></a>
# Transcript

[[!template new="1" text="""Hello and welcome everyone at EmacsConf 2022.""" start="00:00:00.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I'm Andrew Tropin, and today""" start="00:00:11.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""we will talk about my Emacs setup.""" start="00:00:13.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I will tell you the story behind it.""" start="00:00:16.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We will discuss what rde and rde Emacs are,""" start="00:00:19.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and we'll make a small Emacs configuration.""" start="00:00:23.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""My original motivation was to have""" start="00:00:28.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""a ready for work development environment""" start="00:00:30.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which is reliable and guaranteed to work""" start="00:00:34.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""every time I need it,""" start="00:00:36.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""preferably performant and consistent.""" start="00:00:37.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I say development environment,""" start="00:00:42.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but it actually applies to""" start="00:00:44.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""many other working environment,""" start="00:00:45.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""especially text-heavy.""" start="00:00:47.600" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""An easy and obvious solution is to""" start="00:00:52.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""pick one of existing configuration frameworks""" start="00:00:54.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""like Spacemacs, Doom Emacs, Prelude,""" start="00:00:57.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or something else,""" start="00:01:00.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and to get a pre-configured Emacs""" start="00:01:02.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""in a minute with all bells and whistles.""" start="00:01:05.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But the problem is: only Emacs.""" start="00:01:09.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""In reality, your working environment consists""" start="00:01:12.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""not only from elisp packages,""" start="00:01:16.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but also from system packages""" start="00:01:18.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and their configurations, project libraries,""" start="00:01:21.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""compilers, building tools, etc.,""" start="00:01:23.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and thus you already have at least""" start="00:01:27.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""three, or more likely, five things""" start="00:01:31.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""for managing your environment:""" start="00:01:34.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""configuration, Emacs configuration framework,""" start="00:01:37.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Emacs package manager, system package manager,""" start="00:01:39.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""system/dot files configuration manager,""" start="00:01:42.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""project/language package manager""" start="00:01:46.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and maybe something else.""" start="00:01:49.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Even having our Emacs configuration""" start="00:01:51.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and package manager covered by framework""" start="00:01:56.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""we still have a lot of things""" start="00:01:59.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which we have to interact with,""" start="00:02:02.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""keep in sync, and more importantly,""" start="00:02:04.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""each of them can break.""" start="00:02:08.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But by &quot;works every time,&quot; I mean""" start="00:02:12.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""even if I updated my system packages,""" start="00:02:17.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""configurations, I migrated to a different machine,""" start="00:02:19.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""someone on my team updated project dependencies,""" start="00:02:23.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I can get back to work in a matter of seconds,""" start="00:02:29.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or maybe in some cases, minutes.""" start="00:02:31.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""If I have multiple tools""" start="00:02:39.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""for managing my environment""" start="00:02:40.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and even one of them is broken,""" start="00:02:43.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""the whole setup is broken.""" start="00:02:45.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Also, if one of them doesn't support""" start="00:02:48.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""deterministic rollback,""" start="00:02:51.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I can't guarantee the reliability""" start="00:02:53.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""of my working environment.""" start="00:02:58.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I can't be sure that I will be able to""" start="00:02:59.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""rescue or revive it.""" start="00:03:01.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""The less points of failure we have,""" start="00:03:02.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""the easier to stay sane.""" start="00:03:06.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Imagine some late breakage notice""" start="00:03:09.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""when you did update a few hours or days ago""" start="00:03:13.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and found it later, and you have""" start="00:03:17.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""a few different tools involved.""" start="00:03:20.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It will be really hard to find the cause""" start="00:03:25.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and to make everything work again.""" start="00:03:28.280" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""Is it possible to have one tool""" start="00:03:34.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to cover all the needs I described above?""" start="00:03:37.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Yes, almost. With this tool,""" start="00:03:44.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""you can get a reliable setup.""" start="00:03:48.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Now, I talk about functional package managers.""" start="00:03:50.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Functional package managers allow us to""" start="00:03:57.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""manage systems, users, Emacs, project/""" start="00:04:00.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""language packages, and their configurations.""" start="00:04:03.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But more importantly, it allows to do it""" start="00:04:07.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""in a declarative and reproducible manner.""" start="00:04:10.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""That means you just define what you need,""" start="00:04:13.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and those tools build it for you.""" start="00:04:16.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""No matter what was before, you get what you asked for.""" start="00:04:19.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It doesn't matter what time of day,""" start="00:04:24.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""what you did before, what other packages""" start="00:04:26.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""you have installed previously.""" start="00:04:29.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You just ask for something, and you get it.""" start="00:04:31.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Two years ago, I did a talk at EmacsConf 2020""" start="00:04:34.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""where I demonstrated a prototype of""" start="00:04:41.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Emacs configuration managed by Nix.""" start="00:04:43.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Originally, I wanted to base my work on""" start="00:04:47.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""an already existing Emacs configuration framework.""" start="00:04:50.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But later, I decided that it will be easier""" start="00:04:56.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and a little more flexible""" start="00:05:01.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to start from ground up.""" start="00:05:02.440" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""After the first prototype in Nix,""" start="00:05:04.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I decided to switch to Guix. To make it short,""" start="00:05:06.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Guix is another functional package manager,""" start="00:05:12.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but more freedom- and reproducibility-oriented,""" start="00:05:14.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and written in only one language (Guile Scheme)""" start="00:05:21.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""instead of few custom-made Nix DSL, Bash, and C++.""" start="00:05:24.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""So now I can write Lisp code, while this code""" start="00:05:29.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""writes another Lisp code. Very neat indeed.""" start="00:05:34.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Unfortunately, at the moment, there was no tool""" start="00:05:37.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to manage user configurations,""" start="00:05:42.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""also known as dotfiles, with Guix.""" start="00:05:45.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""So I wrote one. And now it's a part of GNU Guix""" start="00:05:48.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and called Guix Home.""" start="00:05:52.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""What do we get from this one tool?""" start="00:05:54.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We can use one language to describe the whole system,""" start="00:05:58.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""the home environment, the project environment,""" start="00:06:05.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and everything else.""" start="00:06:09.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We don't need to worry about""" start="00:06:10.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to keep different tools in sync""" start="00:06:13.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and to integrate them between each other.""" start="00:06:17.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Also, using one language to describe""" start="00:06:19.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""the whole configuration makes it possible""" start="00:06:23.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to share values between different parts of the system.""" start="00:06:25.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""For example, color scheme, fonts, and much more.""" start="00:06:28.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""To sum up the first part of the talk:""" start="00:06:32.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I want a working environment which is ready for work,""" start="00:06:39.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""configured in minutes to almost what I want.""" start="00:06:43.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""That means it should have some batteries included.""" start="00:06:47.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It should be reliable.""" start="00:06:50.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I want to get back to work in seconds""" start="00:06:52.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""even if I broke something""" start="00:06:54.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or someone else broke something.""" start="00:06:56.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""For example, using rollbacks.""" start="00:06:58.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It would be nice if it will be performant.""" start="00:07:03.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It's a little subjective thing,""" start="00:07:07.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but it's nice when things are snappy.""" start="00:07:08.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""And it's cool when things are consistent.""" start="00:07:12.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Different interfaces have""" start="00:07:16.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""the same way of interactions with them.""" start="00:07:17.800" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""Let's get to the next part,""" start="00:07:20.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and let's discuss what rde is.""" start="00:07:25.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Originally it was my dotfiles repo,""" start="00:07:29.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but it grew into something bigger.""" start="00:07:33.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Now, it's a set of tools on top of""" start="00:07:35.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""GNU Guix, Guix System, and Guix Home.""" start="00:07:39.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You can treat it as a GNU/Linux distribution,""" start="00:07:41.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""system and home environment manager""" start="00:07:45.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or configuration framework,""" start="00:07:48.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""project environment manager""" start="00:07:50.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""(like virtualenv, but on steroids),""" start="00:07:52.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and Emacs distribution.""" start="00:07:55.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Usually, you just pick a few features,""" start="00:07:58.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""parameterize them and ask the tool""" start="00:08:02.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to create an operating system for you,""" start="00:08:05.655" video="mainVideo-rde" id="subtitle"]]
[[!template text="""a home environment, project environment,""" start="00:08:08.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or Emacs configuration.""" start="00:08:10.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""That's it. That's simple.""" start="00:08:11.560" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""And what rde Emacs is and how it tastes...""" start="00:08:15.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It's like an ice cream, vanilla-flavored.""" start="00:08:22.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""No fancy macros for configuration, just plain Elisp.""" start="00:08:26.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You can find in almost every""" start="00:08:30.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""personal Emacs configuration,""" start="00:08:34.955" video="mainVideo-rde" id="subtitle"]]
[[!template text="""built-in or vanilla-flavored packages""" start="00:08:36.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""are in priority over external""" start="00:08:42.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or very fancy packages.""" start="00:08:45.589" video="mainVideo-rde" id="subtitle"]]
[[!template text="""There is practical reason for this.""" start="00:08:46.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Maybe sometimes you don't get the things""" start="00:08:52.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""you're used to in other text editors,""" start="00:08:55.455" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or maybe even in other Emacs frameworks,""" start="00:08:57.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but we want to keep the final result consistent,""" start="00:09:01.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""so you can apply the same interaction patterns""" start="00:09:05.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""in different situations and extend your expectations""" start="00:09:08.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""from one tool to another,""" start="00:09:13.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""from one package to another.""" start="00:09:15.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""For example, we encourage people""" start="00:09:16.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to use the minibuffer completion""" start="00:09:19.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""with orderless and vertico for many tasks:""" start="00:09:22.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""code navigation, file navigation,""" start="00:09:26.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""looking through your emails,""" start="00:09:30.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or just for jumping around.""" start="00:09:32.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's see.""" start="00:09:35.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""First, create a new Emacs instance""" start="00:09:36.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and open a repository with my configuration.""" start="00:09:39.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You can see the source code.""" start="00:09:45.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's open another file which contains""" start="00:09:54.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Emacs-related features.""" start="00:09:58.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You can see I use imenu,""" start="00:09:59.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and I can filter the list using minibuffer.""" start="00:10:02.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Now let's open the Magit interface,""" start="00:10:08.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and now I want to navigate through""" start="00:10:16.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""this long list of things here.""" start="00:10:18.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Some of them staged. Some of them are recent commits.""" start="00:10:22.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Some of them are untracked at all.""" start="00:10:25.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I can open imenu: the same interface,""" start="00:10:28.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but for now, I can navigate around""" start="00:10:31.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""the Magit sections and files which are present here.""" start="00:10:34.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""If I want to navigate project files,""" start="00:10:41.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I use almost the same interface.""" start="00:10:45.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I can use the same patterns to filter out""" start="00:10:47.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""files in my project or items in magit-imenu.""" start="00:10:51.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Very similar and very consistent.""" start="00:11:00.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Also, we try to have hotkeys consistent""" start="00:11:07.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""across different packages and parts of Emacs.""" start="00:11:11.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We usually don't provide alternatives on what to use.""" start="00:11:16.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We provide only one package for one task.""" start="00:11:21.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But of course this is""" start="00:11:25.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""a configuration framework after all.""" start="00:11:28.155" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You can declare your own features,""" start="00:11:29.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""implement them yourself,""" start="00:11:32.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and use whatever you want.""" start="00:11:35.789" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""Let's get to some real-world examples.""" start="00:11:37.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It's always easy to show""" start="00:11:45.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""how things get appended,""" start="00:11:48.222" video="mainVideo-rde" id="subtitle"]]
[[!template text="""how things get installed,""" start="00:11:50.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but usually people don't show""" start="00:11:51.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""how they remove things,""" start="00:11:55.289" video="mainVideo-rde" id="subtitle"]]
[[!template text="""because it's usually painful.""" start="00:11:56.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But in our case, it's not.""" start="00:11:58.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's take my configuration,""" start="00:12:02.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""let's find feature-emacs-vertico.""" start="00:12:10.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Vertico's just used to show""" start="00:12:12.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""this fancy completion UI""" start="00:12:19.822" video="mainVideo-rde" id="subtitle"]]
[[!template text="""that you can see here.""" start="00:12:25.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""If I disable this feature""" start="00:12:27.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and rebuild my home environment,""" start="00:12:30.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Emacs will lack this feature.""" start="00:12:43.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It may take some time. It was quite fast,""" start="00:12:46.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I didn't expect it.""" start="00:12:55.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I have Emacs. As you can see here,""" start="00:13:00.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""now it doesn't have this completion UI anymore.""" start="00:13:02.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I just commented it out,""" start="00:13:06.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""rebuilt my home environment,""" start="00:13:09.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and this thing disappeared from Emacs.""" start="00:13:13.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But what if I broke something?""" start="00:13:15.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I just call guix home roll-back command""" start="00:13:19.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and launch Emacs again, and you see""" start="00:13:28.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""now we have vertico back.""" start="00:13:31.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Very good.""" start="00:13:32.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Reliability is one of the most important qualities""" start="00:13:36.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""of working environment.""" start="00:13:41.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We can always get back to""" start="00:13:43.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""the working state of our environment""" start="00:13:46.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and be sure that we do the things we want.""" start="00:13:48.440" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""Now let's see another example.""" start="00:13:52.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Here I have a mastodon,""" start="00:13:57.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""a post which contains a gemini link.""" start="00:13:59.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I can click it, and you see it opens emacsclient,""" start="00:14:03.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""it renders this gemini capsule,""" start="00:14:11.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and we can read all the posts of this guy.""" start="00:14:14.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Very cool.""" start="00:14:17.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But what if I go back to my configuration,""" start="00:14:21.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""we'll find a feature related to elpher,""" start="00:14:26.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""the application which handles gemini links,""" start="00:14:32.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""we'll comment it out,""" start="00:14:36.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and we'll rebuild my home environment.""" start="00:14:38.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""What I expect here is that""" start="00:14:41.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""when I will be clicking the link,""" start="00:14:47.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""emacsclient won't pop up anymore.""" start="00:14:48.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Cool.""" start="00:15:02.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We rebuilt it and let's click the link.""" start="00:15:02.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Now you see, it just opens another tab""" start="00:15:06.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which doesn't do anything useful.""" start="00:15:08.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Cool.""" start="00:15:10.760" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""Why it is important?""" start="00:15:14.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It is important because every time""" start="00:15:15.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""you install something and you want to remove it,""" start="00:15:19.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""some parts depending on it can be broken.""" start="00:15:24.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""And also important in the other way around.""" start="00:15:29.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Sometimes you want to install something,""" start="00:15:31.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and it requires a few steps.""" start="00:15:34.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""For example, if you want to have""" start="00:15:36.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""a docker.el in your Emacs,""" start="00:15:40.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""you need not only docker.el itself""" start="00:15:43.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and configuration for it,""" start="00:15:49.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""you also need to add your user to the docker group.""" start="00:15:51.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But before it, you need to create this group,""" start="00:15:55.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and you also need to""" start="00:15:59.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""define a system service and run it.""" start="00:16:00.455" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Also you need to install docker package,""" start="00:16:02.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""docker-cli package, and containerd package.""" start="00:16:05.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You can forget every of this small step,""" start="00:16:11.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but if it in your declarative configuration""" start="00:16:15.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""in one place, and you just ask""" start="00:16:20.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to enable this feature, each of those steps""" start="00:16:23.589" video="mainVideo-rde" id="subtitle"]]
[[!template text="""will be performed automatically.""" start="00:16:27.822" video="mainVideo-rde" id="subtitle"]]
[[!template text="""If you don't need docker anymore,""" start="00:16:30.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""you just disable the feature,""" start="00:16:33.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and all the effect of all those steps""" start="00:16:34.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""will be removed from your system.""" start="00:16:38.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I won't be showing it because it probably will""" start="00:16:42.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""take more time for reconfiguring,""" start="00:16:46.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but you can experiment with it on your own.""" start="00:16:48.920" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""Let's do another interesting thing.""" start="00:16:54.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's construct a small""" start="00:17:00.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Emacs configuration from scratch.""" start="00:17:05.922" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Who's this?""" start="00:17:07.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I will open a file which contains only""" start="00:17:10.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""emacs-portable feature and feature-user-info.""" start="00:17:14.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Now I will build an environment,""" start="00:17:18.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and inside this environment,""" start="00:17:21.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I will launch a new Emacs instance.""" start="00:17:24.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""As you see, it's very different""" start="00:17:26.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""from what you saw previously.""" start="00:17:28.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""And it's almost barebones.""" start="00:17:30.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It doesn't contain anything""" start="00:17:32.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""except user-mail-address""" start="00:17:39.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which is set to my mail address,""" start="00:17:41.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and user-full-name.""" start="00:17:45.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""How it works:""" start="00:17:46.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""In feature-user-info, I define a few values.""" start="00:17:50.760" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Those values are obtained by Emacs""" start="00:17:54.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""feature-emacs-portable""" start="00:18:01.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and set inside Emacs configuration.""" start="00:18:03.280" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""But let's enable a few more features.""" start="00:18:07.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I will do it in one go""" start="00:18:12.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""because we already saw how it works overall.""" start="00:18:15.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's build another Emacs with Emacs configuration.""" start="00:18:22.120" video="mainVideo-rde" id="subtitle"]]
[[!template text="""The interesting thing about this Emacs instance""" start="00:18:30.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""is that it doesn't contain anything""" start="00:18:39.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""that I have in my usual Emacs.""" start="00:18:44.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""For example, I don't have much here.""" start="00:18:46.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I don't have make installed, and so on.""" start="00:18:49.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""But we have feature-loader-portable package""" start="00:18:55.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which just requires a few configure packages.""" start="00:19:06.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's move it to a separate workspace.""" start="00:19:09.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""First of all, configure-rde-emacs-portable""" start="00:19:13.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which just sets a few variables.""" start="00:19:21.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""rde configure-keycast which just shows""" start="00:19:23.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""something on the modeline""" start="00:19:27.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which demonstrates the last hotkey pressed""" start="00:19:31.200" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and the command which was invoked.""" start="00:19:34.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We can enable which-key,""" start="00:19:40.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and now when I type a prefix,""" start="00:19:41.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I can see all the possible continuations""" start="00:19:45.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""for this prefix.""" start="00:19:48.600" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I can enable vertico,""" start="00:19:49.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and you can see, now we have nice completion UI.""" start="00:19:51.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We can enable completion-related improvements""" start="00:19:58.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and now I have not only UI itself, but also""" start="00:20:03.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""some notes here near each command,""" start="00:20:07.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and ability to use regular expressions""" start="00:20:15.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""or some orderless matching.""" start="00:20:17.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""We can enable eshell,""" start="00:20:21.480" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and now I have a hotkey for invoking Emacs shell.""" start="00:20:26.400" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I don't have hotkey for vterm yet,""" start="00:20:31.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but I can enable it,""" start="00:20:35.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and now I have a terminal inside my Emacs.""" start="00:20:37.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""As you can see my usual shell is Zsh,""" start="00:20:40.800" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but here I have a plain bash.""" start="00:20:43.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's enable feature-git,""" start="00:20:46.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and now I will be able to open my project.""" start="00:20:52.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""And inside this project,""" start="00:21:04.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""I will be able to open Magit""" start="00:21:11.489" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and navigate around using imenu.""" start="00:21:14.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's do few more things.""" start="00:21:19.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's enable Org Roam""" start="00:21:26.160" video="mainVideo-rde" id="subtitle"]]
[[!template text="""so I will be able to open my EmacsConf notes.""" start="00:21:29.640" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's enable configure-emacs.""" start="00:21:43.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""As you can see, the way it displayed updated.""" start="00:21:48.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Let's enable configure-appearance,""" start="00:21:53.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and you see the appearance of Emacs changed radically.""" start="00:21:59.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""And also, let's change the faces.""" start="00:22:03.880" video="mainVideo-rde" id="subtitle"]]
[[!template text="""And now you see almost my setup""" start="00:22:06.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""that you saw previously,""" start="00:22:13.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but we build it from small tiny pieces.""" start="00:22:14.800" video="mainVideo-rde" id="subtitle"]]
[[!template new="1" text="""A little summary:""" start="00:22:19.000" video="mainVideo-rde" id="subtitle"]]
[[!template text="""rde is the one tool that you can use""" start="00:22:27.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""to manage the whole computing experience.""" start="00:22:32.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""It consists of composable components,""" start="00:22:34.440" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and actually, it provides""" start="00:22:38.080" video="mainVideo-rde" id="subtitle"]]
[[!template text="""a reliable configuration framework.""" start="00:22:41.720" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You always have a rollback.""" start="00:22:43.240" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You always can switch to a generation""" start="00:22:46.360" video="mainVideo-rde" id="subtitle"]]
[[!template text="""you used a week ago.""" start="00:22:49.320" video="mainVideo-rde" id="subtitle"]]
[[!template text="""And of course, it's reproducible and declarative""" start="00:22:50.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which is also very cool.""" start="00:22:57.520" video="mainVideo-rde" id="subtitle"]]
[[!template text="""rde Emacs is a part of rde""" start="00:22:58.680" video="mainVideo-rde" id="subtitle"]]
[[!template text="""but it can be used separately.""" start="00:23:05.789" video="mainVideo-rde" id="subtitle"]]
[[!template text="""You can think of it as an Emacs distribution""" start="00:23:06.920" video="mainVideo-rde" id="subtitle"]]
[[!template text="""which is vanilla-flavored, consistent,""" start="00:23:11.280" video="mainVideo-rde" id="subtitle"]]
[[!template text="""well-integrated, and self-contained.""" start="00:23:14.040" video="mainVideo-rde" id="subtitle"]]
[[!template text="""That's it for today.""" start="00:23:15.960" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Don't hesitate to contact me""" start="00:23:19.560" video="mainVideo-rde" id="subtitle"]]
[[!template text="""via email or any other way.""" start="00:23:22.055" video="mainVideo-rde" id="subtitle"]]
[[!template text="""Thank you everyone for your attention""" start="00:23:23.840" video="mainVideo-rde" id="subtitle"]]
[[!template text="""and see you in a bit.""" start="00:23:28.155" video="mainVideo-rde" id="subtitle"]]



Captioner: sachac
Questions or comments? Please e-mail [emacsconf-org-private@gnu.org](mailto:emacsconf-org-private@gnu.org?subject=Comment%20for%20EmacsConf%202022%20rde%3A%20rde%20Emacs%20introduction)


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