WEBVTT 00:00:01.360 --> 00:00:04.480 Hello, my name is Grant Shangreaux. 00:00:04.480 --> 00:00:09.519 This is my talk titled Bard Bivou(m)acs: Publishing Music with Emacs. 00:00:09.519 --> 00:00:14.400 I'm a software developer with Unabridged Software in Lincoln, Nebraska. 00:00:14.400 --> 00:00:18.720 Long time Emacs user, relatively new Emacs hacker. 00:00:18.720 --> 00:00:22.487 Hopefully, I'll be able to show you my workflow, 00:00:22.487 --> 00:00:30.480 with how I publish music with Emacs. 00:00:30.480 --> 00:00:35.520 All right. So as a musician, I would like to publish my music online. 00:00:35.520 --> 00:00:39.040 I could publish with popular online music services, 00:00:39.040 --> 00:00:41.061 but I'm more of a DIY-type, 00:00:41.061 --> 00:00:44.719 so I chose to go ahead and publish with Emacs. 00:00:44.719 --> 00:00:48.160 What's the motivation behind this? 00:00:48.160 --> 00:00:51.600 A lot of it comes down to some fundamental freedoms 00:00:51.600 --> 00:00:57.178 that Emacs and GNU software represent to me, 00:00:57.178 --> 00:01:01.840 as well as my ideas on culture and my background. 00:01:01.840 --> 00:01:04.080 I don't believe that music is a consumer good. 00:01:04.080 --> 00:01:08.320 It's a form of knowledge, like an algorithm. 00:01:08.320 --> 00:01:11.036 And it's just such a part of culture, 00:01:11.036 --> 00:01:12.780 like in tribal cultures, 00:01:12.780 --> 00:01:17.405 music was seen as a gift from the cosmos or the gods. 00:01:17.405 --> 00:01:20.288 It was a gift maybe through an individual vessel, 00:01:20.288 --> 00:01:21.920 but was shared with the people 00:01:21.920 --> 00:01:23.520 and shared with everyone, 00:01:23.520 --> 00:01:26.799 kept alive by the culture itself. 00:01:26.799 --> 00:01:29.840 So to me, music is something that 00:01:29.840 --> 00:01:31.520 should be shared and should be 00:01:31.520 --> 00:01:33.818 freely enjoyed by everyone. 00:01:33.818 --> 00:01:36.560 Of course, artists should be compensated as well, 00:01:36.560 --> 00:01:39.040 but that's a whole different topic. 00:01:39.040 --> 00:01:41.040 So when I want to share my music, 00:01:41.040 --> 00:01:43.520 I want to do it without impacting anyone's freedom. 00:01:43.520 --> 00:01:45.425 Using GNU software like Emacs 00:01:45.425 --> 00:01:49.200 is a good way that I can ensure that 00:01:49.200 --> 00:01:52.597 I won't be requiring people 00:01:52.597 --> 00:01:55.840 to sign away their freedoms for anything. 00:01:55.840 --> 00:01:57.367 There's a lot more I could say about this 00:01:57.367 --> 00:01:58.799 but I don't have time. 00:01:58.799 --> 00:02:03.439 Feel free to reach out to me by email or IRC. 00:02:03.439 --> 00:02:06.479 Part of the motivation for me, 00:02:06.479 --> 00:02:08.775 personally, is that Emacs is super magical. 00:02:08.775 --> 00:02:10.720 It's an all-in-one solution. 00:02:10.720 --> 00:02:12.720 Like I said, the GNU software aligns with 00:02:12.720 --> 00:02:14.480 Creative Commons' ideas. 00:02:14.480 --> 00:02:16.067 I can do file management. 00:02:16.067 --> 00:02:20.239 I can author HTML, all the web stuff I need even, literate-style. 00:02:20.239 --> 00:02:22.171 I can handle media and metadata. 00:02:22.171 --> 00:02:24.640 I've got version control, remote server access... 00:02:24.640 --> 00:02:28.080 All the tools I need are right under my fingertips with this tool 00:02:28.080 --> 00:02:30.000 that I use every day for a long time. 00:02:30.000 --> 00:02:31.440 I don't need to look elsewhere. 00:02:31.440 --> 00:02:34.319 It was a challenge. 00:02:34.319 --> 00:02:36.319 I wanted to see if I could do this 00:02:36.319 --> 00:02:39.440 all within Emacs itself. 00:02:39.440 --> 00:02:41.680 So, how do you use Emacs to publish music? 00:02:41.680 --> 00:02:43.440 Well, for me, I needed 00:02:43.440 --> 00:02:44.258 a couple of things. 00:02:44.258 --> 00:02:47.564 I needed to be able to audition and label unlabeled audio tracks. 00:02:47.564 --> 00:02:50.320 I have a lot of files that I don't know where they came from. 00:02:50.320 --> 00:02:51.213 I don't know what they are. 00:02:51.213 --> 00:02:53.840 I need to be able to listen to them, 00:02:53.840 --> 00:02:56.800 and I need to be able to add metadata to 00:02:56.800 --> 00:02:58.480 whatever audio format it is 00:02:58.480 --> 00:03:00.800 and rename the files based on that 00:03:00.800 --> 00:03:03.200 metadata, potentially. 00:03:03.200 --> 00:03:05.120 And in the end, I wanted to take those 00:03:05.120 --> 00:03:08.319 files and programmatically produce a web page 00:03:08.319 --> 00:03:10.442 for people to consume. 00:03:10.442 --> 00:03:14.879 I found out that Emacs scores a hundred percent on all of 00:03:14.879 --> 00:03:17.709 these requirements that I had for this, 00:03:17.709 --> 00:03:22.640 and a lot of that came from EMMS, the Emacs multimedia system. 00:03:22.640 --> 00:03:26.080 EMMS is great. 00:03:26.080 --> 00:03:27.760 If you haven't checked it out, please do. 00:03:27.760 --> 00:03:29.736 It's a little bit unintuitive, 00:03:29.736 --> 00:03:34.000 but once you get into it, you know it works. 00:03:34.000 --> 00:03:36.420 Basically, what EMMS gave me was 00:03:36.420 --> 00:03:38.720 the ability to listen to the tracks, 00:03:38.720 --> 00:03:39.680 organize playlists. 00:03:39.680 --> 00:03:41.280 On top of that, it gave me 00:03:41.280 --> 00:03:42.959 super-powered metadata authoring. 00:03:42.959 --> 00:03:45.040 I'm going to demonstrate that to you. 00:03:45.040 --> 00:03:47.200 So in order to do this, 00:03:47.200 --> 00:03:50.879 you have to require markable playlists, 00:03:50.879 --> 00:03:54.879 so (require 'emms-mark). I'm going to 00:03:54.879 --> 00:03:59.680 go through, and I'm going to open the red... 00:03:59.680 --> 00:04:02.092 I've got this. These files here. 00:04:02.092 --> 00:04:04.480 So you can see these files are mp3s. 00:04:04.480 --> 00:04:07.599 They're recorded on a digital recorder. 00:04:07.599 --> 00:04:09.920 If I had the choice, I would have a 00:04:09.920 --> 00:04:12.319 recorder that used a different format, 00:04:12.319 --> 00:04:14.640 but so be it. I can mark all these files 00:04:14.640 --> 00:04:27.040 and I can do EMMS add to .., and now they've been loaded into a playlist. 00:04:27.040 --> 00:04:28.698 So you can see the playlist here. 00:04:28.698 --> 00:04:30.400 There's some leftover files. 00:04:30.400 --> 00:04:31.771 So I've got these three files 00:04:31.771 --> 00:04:33.361 in my playlist, and as you can see, 00:04:33.361 --> 00:04:35.194 it's just the file name, the path. 00:04:35.194 --> 00:04:38.560 I don't have any metadata associated with them. 00:04:38.560 --> 00:04:41.360 In this playlist, I can hit E, 00:04:41.360 --> 00:04:43.440 and it'll bring up a buffer showing 00:04:43.440 --> 00:04:47.360 the tag information that I have. 00:04:47.360 --> 00:04:49.840 I could edit these here. 00:04:49.840 --> 00:04:51.129 I could edit them one at a time, 00:04:51.129 --> 00:05:03.101 but that's not really great. I want superpower metadata authoring. 00:05:03.101 --> 00:05:07.159 So, by marking them, I can then hit E, 00:05:07.159 --> 00:05:12.639 and I have all three of the tracks loaded up in this tags buffer. 00:05:12.639 --> 00:05:16.912 On top of that, I can do EMMS tag editor, 00:05:16.912 --> 00:05:22.840 set all, C-c C-r, and I want to set the artist. 00:05:22.840 --> 00:05:26.320 so these are some recordings of my family. 00:05:26.320 --> 00:05:31.039 So, Shangreaux, set all three of them. 00:05:31.039 --> 00:05:35.600 I want to set the album: 00:05:35.600 --> 00:05:40.160 Spring Walk with Lap Harp. 00:05:40.160 --> 00:05:45.520 I want to set the year. 00:05:45.520 --> 00:05:53.759 And then I'm going to go ahead and put these in manually, 00:05:53.759 --> 00:05:56.759 but with the power of Emacs keyboard macros 00:05:56.759 --> 00:05:59.600 and registers and so on. I could do this 00:05:59.600 --> 00:06:02.319 programmatically as well, 00:06:02.319 --> 00:06:03.818 which would make it a lot easier 00:06:03.818 --> 00:06:07.440 if I had much more than three files to do this with. 00:06:07.440 --> 00:06:09.919 Submit the changes with C-c C-c, 00:06:09.919 --> 00:06:11.232 and now we've got the playlist. 00:06:11.232 --> 00:06:15.039 You can see the artist and track number have been updated here. 00:06:15.039 --> 00:06:17.360 And then the final piece of this is that 00:06:17.360 --> 00:06:18.875 if you look at this, you can see that 00:06:18.875 --> 00:06:20.479 the file name is still the same. 00:06:20.479 --> 00:06:22.639 So if I were looking at the directory, 00:06:22.639 --> 00:06:24.560 I would still have this file name. 00:06:24.560 --> 00:06:26.479 When packaging these up for a release, 00:06:26.479 --> 00:06:28.000 for people to download, 00:06:28.000 --> 00:06:30.319 it's nice to be able to have that 00:06:30.319 --> 00:06:32.044 filename reflect the track number 00:06:32.044 --> 00:06:33.609 and the artist and so on. 00:06:33.609 --> 00:06:40.250 So there's another command, 00:06:40.250 --> 00:06:42.970 EMMS rename tag editor, rename, 00:06:42.970 --> 00:06:45.120 so it could be just capital R. 00:06:45.120 --> 00:06:46.991 I think I need to mark all of these, 00:06:46.991 --> 00:06:50.000 hit capital R, and then it's going to ask me to confirm 00:06:50.000 --> 00:06:54.400 and say yes to all of them. 00:06:54.400 --> 00:07:02.720 And now, if you look in the-- 00:07:02.720 --> 00:07:04.319 whoops I have to update it--you'll see 00:07:04.319 --> 00:07:06.319 it's been updated with the artist, 00:07:06.319 --> 00:07:11.120 track number and track name. 00:07:11.120 --> 00:07:14.432 This format is a format string, 00:07:14.432 --> 00:07:17.360 so it's customizable of course. 00:07:17.360 --> 00:07:21.039 I just decided to go with the default. 00:07:21.039 --> 00:07:24.948 So that's pretty great, this workflow just with EMMS. 00:07:24.948 --> 00:07:27.585 I didn't have to do anything. This is all there. 00:07:27.585 --> 00:07:31.673 It's all built in. It gave me exactly what I was looking for 00:07:31.673 --> 00:07:35.599 in terms of being able to process a lot of raw audio files, 00:07:35.599 --> 00:07:39.280 add metadata to them, and get them ready for publishing. 00:07:39.280 --> 00:07:41.599 And this is for publishing for playback 00:07:41.599 --> 00:07:44.026 in any media player. It'll be useful. 00:07:44.026 --> 00:07:47.639 Not just for the web page that I'm building. 00:07:47.639 --> 00:07:51.440 So the final part, of course, is to build the web page. 00:07:51.440 --> 00:07:54.960 Emacs makes authoring HTML trivial. 00:07:54.960 --> 00:07:57.357 As I was going through this, 00:07:57.357 --> 00:07:59.701 I wanted to challenge myself and just be, like, 00:07:59.701 --> 00:08:03.520 can I do this just all with Emacs? Can I just make this? 00:08:03.520 --> 00:08:05.134 I don't need a... I don't need Ruby. 00:08:05.134 --> 00:08:06.707 I don't need Rails. I don't need Node. 00:08:06.707 --> 00:08:08.528 I don't need any of this other stuff. 00:08:08.528 --> 00:08:10.560 I have my tool right here. It's a fully... 00:08:10.560 --> 00:08:12.560 It's a whole operating system, basically, 00:08:12.560 --> 00:08:15.039 plus programming languages. 00:08:15.039 --> 00:08:17.171 So the first thing I started with 00:08:17.171 --> 00:08:19.919 was buffer scripting for manipulating text. 00:08:19.919 --> 00:08:22.560 That's kind of the easiest way to do it. 00:08:22.560 --> 00:08:24.692 Basically, anything you can do in a buffer, 00:08:24.692 --> 00:08:27.834 you can do programmatically with Elisp. 00:08:27.834 --> 00:08:30.217 So this might be a good example for beginners. 00:08:30.217 --> 00:08:33.919 If you haven't done any Elisp yet, 00:08:33.919 --> 00:08:39.557 a simple example is to create this div output here. 00:08:39.557 --> 00:08:41.581 You can use this with-temp-buffer, 00:08:41.581 --> 00:08:44.240 so basically creating an imaginary buffer. 00:08:44.240 --> 00:08:45.945 insert is just like typing, 00:08:45.945 --> 00:08:48.800 so you put strings in, you put new lines in, 00:08:48.800 --> 00:08:50.959 you can build some strings together. 00:08:50.959 --> 00:08:53.551 Here you can see I'm doing a random number, 00:08:53.551 --> 00:08:55.360 so every time I execute this, 00:08:55.360 --> 00:08:56.790 my content changes. 00:08:56.790 --> 00:09:03.685 I can generate dynamic content in HTML blocks with Elisp. 00:09:03.685 --> 00:09:06.493 For my web page builder, it's a little more complex. 00:09:06.493 --> 00:09:08.000 I'm pulling data out 00:09:08.000 --> 00:09:12.080 using EMMS data structures, 00:09:12.080 --> 00:09:16.080 so it's pulling that out from the track data. 00:09:16.080 --> 00:09:19.440 And then I'm using some program to 00:09:19.440 --> 00:09:21.440 generate list elements, so each track is 00:09:21.440 --> 00:09:24.086 going to have the title and track number, 00:09:24.086 --> 00:09:25.869 and then a button for playing it, 00:09:25.869 --> 00:09:28.206 plus the source of the audio file, 00:09:28.206 --> 00:09:30.480 which will get added here. 00:09:30.480 --> 00:09:32.485 Right now, this is hard coded for Opus, 00:09:32.485 --> 00:09:37.200 so it won't work for my MP3s. 00:09:37.200 --> 00:09:38.867 I'm going to skip over snippets. 00:09:38.867 --> 00:09:42.017 Turns out format strings were good enough for me. 00:09:42.017 --> 00:09:45.035 Snippets could be useful, 00:09:45.035 --> 00:09:47.267 but format is super powerful, 00:09:47.267 --> 00:09:49.839 and I didn't really even need all that much power, 00:09:49.839 --> 00:09:52.187 basically, just doing string interpolation. 00:09:52.187 --> 00:09:54.560 So if you haven't seen format before, 00:09:54.560 --> 00:09:56.720 you basically put these control strings 00:09:56.720 --> 00:09:59.120 or control characters inside of a string, 00:09:59.120 --> 00:10:05.040 and you can generate an output string that you want. 00:10:05.040 --> 00:10:07.344 So in my generator code, basically, 00:10:07.344 --> 00:10:08.720 it's down here, 00:10:08.720 --> 00:10:12.800 I'm calling format with this Bard Bivou(m)acs template, 00:10:12.800 --> 00:10:17.491 and that's basically a big string of HTML. 00:10:17.491 --> 00:10:21.200 It's just my whole page of HTML 00:10:21.200 --> 00:10:24.399 with those control characters in just four places. 00:10:24.399 --> 00:10:26.399 One of them populates the track list. 00:10:26.399 --> 00:10:29.760 That's really the meat of the program. 00:10:29.760 --> 00:10:34.746 Again, this is a combination of using buffer scripting, using HTML mode, 00:10:34.746 --> 00:10:37.279 inserting text format strings, 00:10:37.279 --> 00:10:39.251 and then I can indent-region 00:10:39.251 --> 00:10:41.920 so the HTML actually looks pretty 00:10:41.920 --> 00:10:45.200 when it comes out of it as well. 00:10:45.200 --> 00:10:54.000 I will show that, just really quick actually. 00:10:54.000 --> 00:10:57.540 So you can see, this is the HTML that got generated. 00:10:57.540 --> 00:10:58.800 I've got my template. 00:10:58.800 --> 00:11:02.193 I inserted the title here, the style, 00:11:02.193 --> 00:11:05.760 the font was all inserted, 00:11:05.760 --> 00:11:07.920 and then this whole list of of tracks here. 00:11:07.920 --> 00:11:11.200 It's kind of messy to look at, 00:11:11.200 --> 00:11:14.399 but this track list, this whole div here, 00:11:14.399 --> 00:11:22.480 is all generated by my generator code, and it works. It's great. 00:11:22.480 --> 00:11:27.120 Okay, moving on. 00:11:27.120 --> 00:11:30.945 So the other thing was that as I was developing this, 00:11:30.945 --> 00:11:32.547 I decided to use Org Babel 00:11:32.547 --> 00:11:35.588 and some of its features for multi-language things 00:11:35.588 --> 00:11:37.839 because I needed to style it with CSS 00:11:37.839 --> 00:11:39.835 and put actions in Javascript, 00:11:39.835 --> 00:11:42.480 and also I used SVG for authoring stuff. 00:11:42.480 --> 00:11:46.079 It was a little bit complicated. 00:11:46.079 --> 00:11:47.484 It probably would have been simpler 00:11:47.484 --> 00:11:48.680 had I not used Org Babel, 00:11:48.680 --> 00:11:49.894 but it's also really fun. 00:11:49.894 --> 00:11:53.663 I think it's a cool, cool idea to use literate programming. 00:11:53.663 --> 00:11:57.001 My idea was to create HTML components. 00:11:57.001 --> 00:11:59.519 I could name it like this, 00:11:59.519 --> 00:12:00.959 put a format string inside it, 00:12:00.959 --> 00:12:02.800 and build a function 00:12:02.800 --> 00:12:04.302 in Elisp to format it 00:12:04.302 --> 00:12:07.120 and spit out the HTML that I want. 00:12:07.120 --> 00:12:09.581 By doing this, then, 00:12:09.581 --> 00:12:12.388 I can just change things in my Org file, 00:12:12.388 --> 00:12:14.814 which, not getting a whole lot of time to work on it, 00:12:14.814 --> 00:12:16.615 I can come back to it 00:12:16.615 --> 00:12:19.335 and I have a lot of notes. 00:12:19.335 --> 00:12:21.695 I can kind of generate things as I'm going 00:12:21.695 --> 00:12:24.399 and keep notes for myself, and keep the... 00:12:24.399 --> 00:12:25.308 I don't know. It's cool. 00:12:25.308 --> 00:12:26.672 Literate programming is fun. 00:12:26.672 --> 00:12:27.519 So I don't need to 00:12:27.519 --> 00:12:29.279 go into that too much, but you can see if 00:12:29.279 --> 00:12:31.040 I execute this here, 00:12:31.040 --> 00:12:32.983 I get the the div that I want. 00:12:32.983 --> 00:12:34.013 It's a little bit funny. 00:12:34.013 --> 00:12:35.786 You'll see I have the string like this, 00:12:35.786 --> 00:12:40.000 the way that noweb expands, I can't do this on a single line. 00:12:40.000 --> 00:12:43.839 It looks funny when you do that, 00:12:43.839 --> 00:12:45.931 so that might be something to work out later. 00:12:45.931 --> 00:12:48.959 CSS blocks can either be tangled out 00:12:48.959 --> 00:12:52.639 and referenced in the HTML source, or inlined. 00:12:52.639 --> 00:12:54.639 Here's an example I have of inlining it. 00:12:54.639 --> 00:12:57.609 So I've got my little CSS block named style, 00:12:57.609 --> 00:13:00.320 Javascript named script, 00:13:00.320 --> 00:13:03.040 and then I've got this HTML source block 00:13:03.040 --> 00:13:04.839 with noweb expansion. 00:13:04.839 --> 00:13:07.920 These double angle brackets here 00:13:07.920 --> 00:13:09.396 are where I'm going to expand 00:13:09.396 --> 00:13:12.639 the block named style. I'm actually calling a function, 00:13:12.639 --> 00:13:14.737 so I want the result of the function here, 00:13:14.737 --> 00:13:18.881 and then the script will just get expanded here. 00:13:18.881 --> 00:13:22.959 So org-babel-expand-src-block, 00:13:22.959 --> 00:13:25.360 you can see what it looks like. 00:13:25.360 --> 00:13:28.160 I've got my style here. I've got my title. 00:13:28.160 --> 00:13:31.279 I've got that main content class I showed before, 00:13:31.279 --> 00:13:34.480 and the script as well. So that's kind of cool. 00:13:34.480 --> 00:13:37.527 I could just run org-babel-tangle and get my thing out 00:13:37.527 --> 00:13:40.480 and just edit one file instead of multiple files. 00:13:40.480 --> 00:13:46.455 Not for everyone, but I thought it was kind of fun. All right. 00:13:46.455 --> 00:13:48.807 Oh, and the final thing is that in Emacs, 00:13:48.807 --> 00:13:51.320 you can author and view SVG. 00:13:51.320 --> 00:13:58.297 So this is just an Org. This SVG, I used to make the play and pause buttons. 00:13:58.297 --> 00:13:59.519 I didn't know this, 00:13:59.519 --> 00:14:02.162 but if you edit an SVG file, 00:14:02.162 --> 00:14:08.800 you can toggle back and forth 00:14:08.800 --> 00:14:13.199 between the code and the image. 00:14:13.199 --> 00:14:17.360 It's pretty sweet. So I can iteratively 00:14:17.360 --> 00:14:20.560 work through this because of how Emacs is. 00:14:20.560 --> 00:14:24.959 Final considerations here, 00:14:24.959 --> 00:14:26.247 like when doing this, 00:14:26.247 --> 00:14:27.606 I want it to be all free, 00:14:27.606 --> 00:14:30.079 so I want to use fonts that use a free license. 00:14:30.079 --> 00:14:32.800 I found GNU Unifont. It's kind of cool. 00:14:32.800 --> 00:14:34.333 The content license... 00:14:34.333 --> 00:14:37.600 I chose Creative Commons Attribution ShareAlike, 00:14:37.600 --> 00:14:39.920 which is kind of like the GPL. 00:14:39.920 --> 00:14:42.663 Ideally, I could serve it with Emacs. 00:14:42.663 --> 00:14:46.320 I'd like to remove idiosyncrasy so other people can use it. 00:14:46.320 --> 00:14:48.720 It's pretty much just my tool right now. 00:14:48.720 --> 00:14:50.734 Not requiring the web browser... 00:14:50.734 --> 00:14:56.648 I can ship playlists so that you can just click or link to a playlist 00:14:56.648 --> 00:15:00.068 on your favorite player, even EMMS if you want, 00:15:00.068 --> 00:15:04.320 and then packing up those albums in like a ZIP or .tar file. 00:15:04.320 --> 00:15:08.639 So you can go to churls.world . 00:15:08.639 --> 00:15:10.644 It just has a link to this album. 00:15:10.644 --> 00:15:14.000 I'll display it here in just a second. 00:15:14.000 --> 00:15:17.519 You can contact me. I'm shoshin on #emacs 00:15:17.519 --> 00:15:21.040 in IRC and on sourcehut. You can email me: 00:15:21.040 --> 00:15:23.680 grant@churls.world, personal, or 00:15:23.680 --> 00:15:26.800 grant@unabridgedsoftware.com. All right, now. 00:15:26.800 --> 00:15:32.079 Let's see about this... 00:15:32.079 --> 00:15:34.316 This is up online, so if you want to listen 00:15:34.316 --> 00:15:39.199 to my college band's album from 20 years ago, 00:15:39.199 --> 00:15:43.040 here it is: Cassiopeia Basement Days. 00:15:43.040 --> 00:15:46.887 Whoops. I made this art in Krita. 00:15:46.887 --> 00:15:51.199 You can press play. You can skip around. 00:15:51.199 --> 00:15:55.040 I do have the playlist up here too. 00:15:55.040 --> 00:15:58.560 So yeah, thanks for listening. 00:15:58.560 --> 00:16:07.360 I hope you enjoyed it, and enjoy the rest of EmacsConf. Goodbye!