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diff --git a/2023/captions/emacsconf-2023-uni--authoring-and-presenting-university-courses-with-emacs-and-a-full-libre-software-stack--james-howell--answers.vtt b/2023/captions/emacsconf-2023-uni--authoring-and-presenting-university-courses-with-emacs-and-a-full-libre-software-stack--james-howell--answers.vtt new file mode 100644 index 00000000..11cda190 --- /dev/null +++ b/2023/captions/emacsconf-2023-uni--authoring-and-presenting-university-courses-with-emacs-and-a-full-libre-software-stack--james-howell--answers.vtt @@ -0,0 +1,1262 @@ +WEBVTT + + +00:00:01.680 --> 00:00:01.880 +[Speaker 0]: And he can hear us. Can you perhaps do it for + +00:00:03.679 --> 00:00:03.760 +me? Great. The little angels in the + +00:00:04.640 --> 00:00:05.140 +background have done it for me. + +00:00:07.299 --> 00:00:07.759 +So now, finally, that everything is ready. + +00:00:08.559 --> 00:00:09.059 +Hi, James. How are you doing? + +00:00:10.559 --> 00:00:11.059 +[Speaker 1]: Good morning. Hello. + +00:00:15.200 --> 00:00:15.600 +[Speaker 0]: Well, thank you for your talk. + +00:00:17.160 --> 00:00:17.440 +And sorry for the little hiccup at the middle + +00:00:20.080 --> 00:00:20.380 +we had to put out a fire with the audio + +00:00:22.060 --> 00:00:22.560 +going out in the middle and sorry about this. + +00:00:23.560 --> 00:00:24.060 +[Speaker 1]: It's no trouble. + +00:00:28.220 --> 00:00:28.680 +[Speaker 0]: So James, you've obviously told us about your + +00:00:30.060 --> 00:00:30.220 +very fancy setup with the green screen and + +00:00:32.640 --> 00:00:32.800 +I'm sad to see that you haven't put out the + +00:00:35.440 --> 00:00:35.589 +green screen for your BBB session right now. + +00:00:36.880 --> 00:00:37.040 +Do you have it in the background just for + +00:00:39.880 --> 00:00:40.380 +you? Right, okay. It wasn't that far. + +00:00:43.860 --> 00:00:44.180 +Great. No. So, I'm just going to ask. + +00:00:47.260 --> 00:00:47.440 +So, this is the first live Q&A that we have + +00:00:49.080 --> 00:00:49.320 +for this session, so things might be coming + +00:00:51.480 --> 00:00:51.600 +into place, so pardon us if we take a little + +00:00:54.239 --> 00:00:54.340 +bit of time to put the questions on the + +00:00:55.320 --> 00:00:55.820 +screen and all of this. + +00:00:58.080 --> 00:00:58.260 +What I'm gonna do, I'm just gonna load up the + +00:01:02.720 --> 00:01:02.800 +pad. I would invite James to also open the + +00:01:03.820 --> 00:01:04.200 +pad on his hand. Sorry, + +00:01:05.580 --> 00:01:05.740 +I've got people talking in my ears and it's + +00:01:07.240 --> 00:01:07.740 +been a while since I've last had this. + +00:01:11.400 --> 00:01:11.869 +Okay, so opening the talks right now. + +00:01:13.780 --> 00:01:14.280 +Opening the pad, if I can find it. + +00:01:20.440 --> 00:01:20.740 +Open the pad. Okay. Have you got the pad open + +00:01:22.360 --> 00:01:22.860 +[Speaker 1]: So I can read the question. + +00:01:24.020 --> 00:01:24.280 +[Speaker 0]: on your end, James? Okay, + +00:01:26.720 --> 00:01:27.220 +great. Opening it on my end as well. + +00:01:28.380 --> 00:01:28.660 +What I'm going to do, folks, + +00:01:30.300 --> 00:01:30.800 +I see some of you have joined us on, + +00:01:32.560 --> 00:01:32.700 +if I show you, some of the people that have + +00:01:33.840 --> 00:01:34.340 +joined us in the BBB room. + +00:01:35.240 --> 00:01:35.540 +You can join us as well, + +00:01:37.860 --> 00:01:38.260 +all the links are on the talk page or on ISE, + +00:01:39.140 --> 00:01:39.520 +you can find it very easily. + +00:01:41.960 --> 00:01:42.240 +But what I'm going to start doing is first + +00:01:43.660 --> 00:01:43.860 +taking questions in the other pad because + +00:01:45.540 --> 00:01:45.700 +it's a little faster to ask questions like + +00:01:47.760 --> 00:01:48.080 +this, and then as soon as we've finished, + +00:01:49.760 --> 00:01:49.900 +feel free to unmute yourself and ask your + +00:01:54.020 --> 00:01:54.160 +questions. All right, so I've got some + +00:01:56.640 --> 00:01:57.140 +reactions about OBS being cool and yes, + +00:01:59.060 --> 00:01:59.180 +both James and I will be able to tell you + +00:02:00.600 --> 00:02:01.100 +that it's very cool. We do very fancy stuff + +00:02:05.540 --> 00:02:05.640 +like when I need to talk to production in the + +00:02:07.420 --> 00:02:07.540 +background and all the stuff obviously that + +00:02:09.020 --> 00:02:09.160 +James has been able to show you with a green + +00:02:12.600 --> 00:02:12.800 +screen. So I don't see a whole lot of + +00:02:15.780 --> 00:02:16.020 +questions so far. I see a lot of reactions on + +00:02:17.420 --> 00:02:17.780 +publishing lectures book and a classic + +00:02:19.280 --> 00:02:19.780 +example is John Kitchens obviously. + +00:02:24.020 --> 00:02:24.240 +Pedagogy first developments macros are a cool + +00:02:28.340 --> 00:02:28.820 +idea. Okay questions so how do you overlap + +00:02:30.860 --> 00:02:31.360 +yourself with a presentation it's so cool. + +00:02:39.540 --> 00:02:40.040 +[Speaker 1]: It's quite simple OBS provides filters for + +00:02:42.080 --> 00:02:42.480 +you can have a separate filter for each video + +00:02:44.260 --> 00:02:44.760 +feed. And 1 of the filters that's available + +00:02:47.200 --> 00:02:47.520 +is chroma key. You just choose a color to + +00:02:51.560 --> 00:02:52.040 +make transparent and just make sure that the + +00:02:55.640 --> 00:02:56.140 +webcam is at the top of the composition. + +00:03:00.660 --> 00:03:00.900 +And the thing that surprised me the most was + +00:03:04.920 --> 00:03:05.380 +how quickly my brain was able to mirror + +00:03:07.200 --> 00:03:07.360 +everything and control my body from a + +00:03:10.360 --> 00:03:10.740 +separate point of view like the way weather + +00:03:15.200 --> 00:03:15.360 +broadcasts are done. It took seconds to be + +00:03:16.720 --> 00:03:16.920 +able to do that. Well, + +00:03:19.700 --> 00:03:20.200 +and now I have years of practice because that + +00:03:22.720 --> 00:03:22.960 +setup that you saw that I used to record this + +00:03:26.960 --> 00:03:27.460 +video, I used for years during the pandemic + +00:03:30.040 --> 00:03:30.540 +for 4 or 5 semesters to, + +00:03:33.520 --> 00:03:33.820 +because my courses are all have 2, + +00:03:36.480 --> 00:03:36.900 +3, 400 students, except for the English class + +00:03:40.160 --> 00:03:40.460 +which has you know 30 students and so during + +00:03:43.520 --> 00:03:43.700 +the pandemic and even after lockdowns were no + +00:03:45.780 --> 00:03:46.020 +longer mandated I taught online just because + +00:03:48.180 --> 00:03:48.320 +I didn't want to have so many students in the + +00:03:49.000 --> 00:03:49.500 +room at the same time. + +00:03:53.640 --> 00:03:54.120 +So I've yeah I'm it I have a lot of practice + +00:03:54.360 --> 00:03:54.860 +doing that. + +00:03:57.780 --> 00:03:58.200 +[Speaker 0]: But it pays off because it looks so natural + +00:03:59.960 --> 00:04:00.140 +you know it feels like it's the same thing + +00:04:02.200 --> 00:04:02.660 +with weather casters you know it sounds very + +00:04:04.440 --> 00:04:04.700 +it looks very easy to do but it also takes + +00:04:05.280 --> 00:04:05.780 +quite a bit of practice. + +00:04:08.220 --> 00:04:08.400 +1 of the things that you also need to + +00:04:09.840 --> 00:04:10.160 +remember if you're using a chroma key that + +00:04:11.680 --> 00:04:11.880 +James has explained is that you need to have + +00:04:14.380 --> 00:04:14.680 +very good lighting basically for the color to + +00:04:16.320 --> 00:04:16.640 +pop out in the background and for your body + +00:04:17.779 --> 00:04:18.279 +to be easily highlightable. + +00:04:20.760 --> 00:04:21.260 +Okay, were you finished with this question? + +00:04:24.440 --> 00:04:24.940 +[Speaker 1]: Yeah, let's take another 1. + +00:04:28.020 --> 00:04:28.520 +[Speaker 0]: Sure. So how do you deal with video in Beam? + +00:04:30.060 --> 00:04:30.560 +I found it so hard to do that. + +00:04:32.600 --> 00:04:33.100 +PPT on the other end is easier to achieve. + +00:04:41.120 --> 00:04:41.520 +[Speaker 1]: Yeah, so remember that the slides get + +00:04:46.420 --> 00:04:46.920 +produced from Org Mode as PDFs. + +00:04:49.820 --> 00:04:50.040 +Well, and in fact, even before when I was + +00:04:52.580 --> 00:04:52.740 +using other software to produce slides I + +00:04:55.600 --> 00:04:55.760 +produced them as PDFs precisely because I + +00:04:58.440 --> 00:04:58.580 +wanted to be able to mark them up on on the + +00:05:03.960 --> 00:05:04.160 +screen with the stylus And so I don't do + +00:05:07.580 --> 00:05:07.840 +video in the slides. I use OBS to switch from + +00:05:09.900 --> 00:05:10.400 +static slides that I mark up with the stylus + +00:05:14.540 --> 00:05:14.800 +over to some kind of video viewer and then + +00:05:17.320 --> 00:05:17.820 +back. And again that's how I can use Firefox. + +00:05:21.360 --> 00:05:21.860 +I use OBS to switch between Firefox and video + +00:05:26.820 --> 00:05:27.040 +and the Shornal++ program where I can mark up + +00:05:31.280 --> 00:05:31.780 +slides. So those functionalities are... + +00:05:35.140 --> 00:05:35.320 +That's why I use different software and pull + +00:05:37.480 --> 00:05:37.980 +it all together with OBS so that I can have + +00:05:41.240 --> 00:05:41.740 +lots of functional flexibility. + +00:05:47.360 --> 00:05:47.660 +[Speaker 0]: Great. Do you ever use things like + +00:05:50.320 --> 00:05:50.820 +org-present and stay for the PowerPoint + +00:05:53.040 --> 00:05:53.200 +slides? I'm not sure exactly how to read this + +00:05:54.340 --> 00:05:54.520 +particular question, but at least we can + +00:05:56.120 --> 00:05:56.520 +focus on org-present. Are you familiar with + +00:05:56.820 --> 00:05:57.320 +what it is? + +00:06:00.060 --> 00:06:00.560 +[Speaker 1]: I've played around with org-present, + +00:06:06.740 --> 00:06:07.240 +And again, I guess you could use OrgPresent + +00:06:11.440 --> 00:06:11.680 +to show images and to show headings as + +00:06:16.820 --> 00:06:17.220 +slides. But again, Because it's such a + +00:06:20.440 --> 00:06:20.640 +crucial functionality to be able to mark them + +00:06:25.180 --> 00:06:25.360 +up with a stylus. I didn't really show this + +00:06:27.040 --> 00:06:27.180 +very much, but I also highlight things the + +00:06:29.320 --> 00:06:29.600 +way I would highlight using a laser pointer + +00:06:31.960 --> 00:06:32.460 +on the screen. And again, + +00:06:37.160 --> 00:06:37.380 +I don't see Emacs being able to do that for + +00:06:38.560 --> 00:06:39.060 +another couple of generations. + +00:06:43.220 --> 00:06:43.540 +So really the only thing I use Emacs for + +00:06:48.900 --> 00:06:49.400 +during presentations is to narrow headings + +00:06:51.600 --> 00:06:52.100 +that we can focus on particular text + +00:06:52.600 --> 00:06:53.100 +excerpts. + +00:06:59.020 --> 00:06:59.180 +[Speaker 0]: Right, yeah. A lot of our presentations at + +00:07:00.060 --> 00:07:00.380 +EmacsConf are usually, + +00:07:01.320 --> 00:07:01.720 +especially the Org Mode ones, + +00:07:02.520 --> 00:07:03.020 +are done with Org Present. + +00:07:08.480 --> 00:07:08.980 +Sorry, I had someone talk to me in the ear. + +00:07:10.960 --> 00:07:11.460 +You know the problem with EmacsConf is that + +00:07:13.620 --> 00:07:13.780 +every year, you have to relearn a lot of + +00:07:15.840 --> 00:07:16.340 +skills, and by the time we finish, + +00:07:18.720 --> 00:07:19.220 +by Sunday evening, we are masters of it. + +00:07:21.460 --> 00:07:21.600 +And then we forget everything by the time the + +00:07:22.260 --> 00:07:22.760 +next year comes around. + +00:07:24.440 --> 00:07:24.940 +What I was going to say is that org-present + +00:07:28.660 --> 00:07:29.160 +is often used by people inside Emacs, + +00:07:30.440 --> 00:07:30.940 +Conf, presenting about org-mode. + +00:07:32.660 --> 00:07:32.780 +But yeah, whenever you need to do something a + +00:07:34.200 --> 00:07:34.360 +little more visual, it gets a little more + +00:07:36.360 --> 00:07:36.500 +complicated. Some people have tried to do + +00:07:39.020 --> 00:07:39.160 +fancy stuff with SVG, which is probably the + +00:07:40.640 --> 00:07:41.140 +path forward for this type of stuff. + +00:07:42.680 --> 00:07:43.180 +But yeah, if you need to draw, + +00:07:43.940 --> 00:07:44.440 +if you need to highlight, + +00:07:45.820 --> 00:07:46.320 +it is pretty complicated. + +00:07:48.220 --> 00:07:48.340 +Perhaps something that you might want to be + +00:07:50.500 --> 00:07:50.980 +interested, James, in checking out is PDF + +00:07:53.740 --> 00:07:54.240 +Tools, which is a way to open up a PDF in + +00:07:59.100 --> 00:07:59.480 +Emacs. And this allows you to have basic PDF + +00:08:01.320 --> 00:08:01.560 +annotations, like putting a little bit of a + +00:08:03.960 --> 00:08:04.200 +Nikon on it. Perhaps you've already played + +00:08:04.360 --> 00:08:04.860 +with it. + +00:08:09.440 --> 00:08:09.940 +[Speaker 1]: I have used that. PDF Tools is an incredible + +00:08:14.260 --> 00:08:14.540 +package but until it allows me to make a mark + +00:08:17.860 --> 00:08:18.260 +on the screen that shows up in a video + +00:08:20.540 --> 00:08:21.040 +compositor. It's not going to replace + +00:08:21.360 --> 00:08:21.860 +Shornal. + +00:08:25.200 --> 00:08:25.440 +[Speaker 0]: Definitely. Alright, moving on to the next + +00:08:31.580 --> 00:08:31.592 +question. Is the triple-accolade syntax an + +00:08:31.682 --> 00:08:31.695 +[Speaker 2]: Org Mode core feature that I missed so + +00:08:31.760 --> 00:08:32.220 +[Speaker 0]: far, or did you program that? + +00:08:33.080 --> 00:08:33.580 +And thank you for the great talk. + +00:08:38.100 --> 00:08:38.360 +[Speaker 1]: Thank you very much. No, + +00:08:42.700 --> 00:08:43.200 +it's just part of all of the export backends. + +00:08:44.860 --> 00:08:45.060 +Actually, I think the way it works is it + +00:08:46.560 --> 00:08:47.040 +precedes all of the export backends. + +00:08:49.820 --> 00:08:50.280 +When you export, the first thing that happens + +00:08:51.880 --> 00:08:52.380 +is expansion of macros. + +00:08:55.680 --> 00:08:56.180 +And that's a built-in org mode feature. + +00:08:59.280 --> 00:08:59.760 +It's definitely beyond my Emacs Lisp powers + +00:09:01.160 --> 00:09:01.360 +to be able to have made something that + +00:09:06.440 --> 00:09:06.940 +powerful. That's right. + +00:09:08.040 --> 00:09:08.540 +I have come a long way. + +00:09:10.460 --> 00:09:10.760 +[Speaker 0]: For now, for now. You know, + +00:09:12.800 --> 00:09:12.980 +we always, you know, most of the people who + +00:09:14.680 --> 00:09:15.060 +show up to Emacs, especially talking about + +00:09:17.080 --> 00:09:17.300 +stuff that has to do with presentations or + +00:09:18.420 --> 00:09:18.900 +what they do in academia, + +00:09:19.600 --> 00:09:19.780 +you know, they always say, + +00:09:22.240 --> 00:09:22.440 +oh, but, you know, I couldn't have done all + +00:09:23.940 --> 00:09:24.280 +this, you know, it's just far away. + +00:09:26.120 --> 00:09:26.280 +And then they come back 1 year or 2 years + +00:09:27.660 --> 00:09:27.980 +later, and then, oh, I've made my entire + +00:09:29.540 --> 00:09:29.700 +library for presentation and stuff like this. + +00:09:32.800 --> 00:09:32.980 +So Be hopeful about what the future holds for + +00:09:34.760 --> 00:09:34.920 +you in terms of coming up with crazy new + +00:09:36.300 --> 00:09:36.800 +features for the entire ecosystem. + +00:09:38.560 --> 00:09:39.060 +[Speaker 1]: Well, let me tell you, + +00:09:42.040 --> 00:09:42.540 +since the pandemic, I have written, + +00:09:44.340 --> 00:09:44.700 +I wrote my first major mode. + +00:09:46.520 --> 00:09:47.020 +It's trivial, but it provides functionality + +00:09:49.580 --> 00:09:50.080 +that is very useful to me. + +00:09:53.720 --> 00:09:53.940 +And it's going to sound like I'm just trying + +00:09:54.760 --> 00:09:54.960 +to butter everyone up, + +00:09:57.620 --> 00:09:58.120 +but seeing a lot of the names in the IRC + +00:10:01.360 --> 00:10:01.860 +channel, people who have taught me so much on + +00:10:05.220 --> 00:10:05.640 +their YouTube channels and in their blog + +00:10:07.400 --> 00:10:07.900 +posts and on Reddit and on Mastodon. + +00:10:11.720 --> 00:10:12.220 +Without many of the people who are here today + +00:10:14.820 --> 00:10:15.320 +watching my talk, it's very fun to have + +00:10:17.920 --> 00:10:18.120 +people who have helped me learn so much about + +00:10:19.640 --> 00:10:20.140 +Emacs. So thanks to all of you. + +00:10:23.820 --> 00:10:24.140 +[Speaker 0]: Well, and yeah, and now you're becoming part + +00:10:26.940 --> 00:10:27.380 +of this crew of people inspiring others to do + +00:10:28.860 --> 00:10:29.180 +very much the same. So thank you for joining + +00:10:32.020 --> 00:10:32.520 +[Speaker 1]: Thank you very much. + +00:10:34.780 --> 00:10:35.020 +[Speaker 0]: the crew. Great. Moving on to the 2 last + +00:10:36.500 --> 00:10:36.660 +questions and then we'll open up the mic to + +00:10:37.400 --> 00:10:37.900 +other people on BigBlueButton. + +00:10:40.760 --> 00:10:40.920 +What kind of comparative feedback are + +00:10:42.280 --> 00:10:42.780 +students giving you regarding your approach? + +00:10:47.560 --> 00:10:48.060 +[Speaker 1]: Oh my gosh. Students were ready to, + +00:10:49.120 --> 00:10:49.620 +during the pandemic especially, + +00:10:54.100 --> 00:10:54.600 +when most of the courses were just being + +00:10:56.660 --> 00:10:56.820 +taught over Zoom by people sharing their + +00:10:56.820 --> 00:10:57.320 +screens. + +00:10:58.520 --> 00:10:58.660 +[Speaker 0]: Just a second, sorry, sorry for the + +00:10:59.440 --> 00:10:59.800 +interruption, very rude interruption, + +00:11:00.840 --> 00:11:01.040 +but I've got the intro for the next talk + +00:11:02.200 --> 00:11:02.440 +playing and I'm not sure what's going on. + +00:11:03.120 --> 00:11:03.620 +Give me just a second. + +00:11:04.440 --> 00:11:04.940 +Sasha? + +00:11:19.840 --> 00:11:20.340 +So... Yeah, I think it's started. + +00:11:37.020 --> 00:11:37.300 +Sure. I got the times wrong, + +00:11:38.900 --> 00:11:39.100 +apparently, because of the little delay we + +00:11:41.880 --> 00:11:42.380 +had getting the audio fixed up. + +00:11:44.220 --> 00:11:44.720 +The good news is that we're still recording + +00:11:46.400 --> 00:11:46.680 +the talk right now and we still have James + +00:11:47.560 --> 00:11:47.800 +around. Obviously, James, + +00:11:50.280 --> 00:11:50.440 +you're no longer on being broadcast on + +00:11:53.040 --> 00:11:53.440 +General, but if you want to keep answering + +00:11:55.200 --> 00:11:55.520 +questions or if you want to, + +00:11:57.240 --> 00:11:57.360 +anyone in the room right now wants to ask you + +00:11:58.440 --> 00:11:58.940 +questions, feel free to do so. + +00:12:00.920 --> 00:12:01.080 +I'm going to need to hop off because I need + +00:12:02.560 --> 00:12:03.060 +to get other things ready for the next talks, + +00:12:04.820 --> 00:12:05.320 +[Speaker 1]: But James, + +00:12:08.860 --> 00:12:09.120 +[Speaker 0]: sadly. great. And sorry, + +00:12:10.040 --> 00:12:10.380 +I'm a little tense, obviously, + +00:12:12.680 --> 00:12:13.180 +because I was not expecting this to happen. + +00:12:15.960 --> 00:12:16.160 +And that led to a very abrupt end to this + +00:12:18.340 --> 00:12:18.480 +discussion. But people afterwards on + +00:12:21.860 --> 00:12:21.980 +emacsmo.org slash 2023 slash talks will be + +00:12:23.600 --> 00:12:24.020 +able to find all the content here. + +00:12:24.920 --> 00:12:25.420 +So I'll have to leave now. + +00:12:26.660 --> 00:12:26.980 +Thank you so much, James, + +00:12:29.020 --> 00:12:29.180 +for doing the difficult task of opening up + +00:12:31.480 --> 00:12:31.980 +emacs-conf, And I'll probably see you later. + +00:12:34.660 --> 00:12:35.160 +[Speaker 1]: Thank you, Leo. Bye-bye. + +00:12:54.380 --> 00:12:54.880 +[Speaker 3]: On your, the external, + +00:12:59.920 --> 00:13:00.340 +the journal You were, you, + +00:13:03.040 --> 00:13:03.520 +you were using the tablet as a monitor, + +00:13:04.540 --> 00:13:05.040 +right? Touchscreen monitor, + +00:13:05.380 --> 00:13:05.880 +what's that? + +00:13:07.160 --> 00:13:07.480 +[Speaker 1]: program. Yes. That's exactly right. + +00:13:10.040 --> 00:13:10.540 +So it's a tablet, so it has a touchscreen. + +00:13:15.360 --> 00:13:15.580 +And so basically the functionality that that + +00:13:20.220 --> 00:13:20.560 +program provides is to be able to just mark + +00:13:21.660 --> 00:13:22.160 +up PDFs with a stylus, + +00:13:25.080 --> 00:13:25.280 +you know, in the way that you would use any + +00:13:30.440 --> 00:13:30.640 +other tablet. And to be able to take that + +00:13:32.920 --> 00:13:33.420 +video signal and put it into another machine. + +00:13:35.640 --> 00:13:36.100 +That was the that was the key. + +00:13:36.900 --> 00:13:37.400 +That's the killer app. + +00:13:41.460 --> 00:13:41.940 +[Speaker 3]: I've thought about grabbing 1 for the purpose + +00:13:45.120 --> 00:13:45.420 +of like changing my laptop into a tablet to + +00:13:47.640 --> 00:13:48.140 +read manga, browse the web, + +00:13:50.860 --> 00:13:51.020 +and I'm kind of curious if it works well like + +00:13:53.100 --> 00:13:53.600 +as a wireless monitor with a tablet? + +00:13:59.820 --> 00:14:00.060 +Or how well it like you can use Emacs with it + +00:14:04.020 --> 00:14:04.200 +in a tablet mode? Or were you just or you + +00:14:04.400 --> 00:14:04.900 +just use + +00:14:11.680 --> 00:14:12.040 +[Speaker 1]: the tablet that I use is this is it it's just + +00:14:14.820 --> 00:14:15.020 +the Microsoft Surface and so it comes with a + +00:14:18.200 --> 00:14:18.700 +keyboard So you can take the keyboard off. + +00:14:22.760 --> 00:14:23.260 +But I use it with the keyboard as well. + +00:14:25.240 --> 00:14:25.740 +And I just. + +00:14:31.000 --> 00:14:31.500 +[Speaker 3]: You're cutting off right now. + +00:14:33.680 --> 00:14:34.180 +Audio. + +00:14:45.660 --> 00:14:46.160 +Your audio is cutting off right now. + +00:15:31.740 --> 00:15:32.240 +How about now? Now I can hear you. + +00:15:33.820 --> 00:15:33.960 +[Speaker 1]: How about now? I bumped the mute button on + +00:15:37.420 --> 00:15:37.740 +the mic. Yeah, so again, + +00:15:38.680 --> 00:15:38.940 +this is... I'm trying to figure out which + +00:15:41.020 --> 00:15:41.520 +[Speaker 3]: of the 16 mute buttons you used. + +00:15:45.700 --> 00:15:46.200 +[Speaker 1]: It's just the Surface Pro 3 that I got used. + +00:15:52.920 --> 00:15:53.300 +And it runs Emacs, I mean it runs GNU Linux + +00:15:58.740 --> 00:15:58.980 +really well. And the trouble is that the hard + +00:16:01.900 --> 00:16:02.220 +drive, you know, the SSD drive is small and + +00:16:06.260 --> 00:16:06.420 +the RAM is small, but it works for the + +00:16:09.340 --> 00:16:09.640 +purposes. Basically, if I had a couple + +00:16:13.080 --> 00:16:13.260 +thousand dollars, I could probably buy a + +00:16:16.320 --> 00:16:16.560 +touch screen machine or I could run + +00:16:18.960 --> 00:16:19.200 +everything on it and do the streaming and do + +00:16:24.960 --> 00:16:25.460 +the video capture and do the PDF markup. + +00:16:27.980 --> 00:16:28.480 +But since both of these are so, + +00:16:31.720 --> 00:16:31.960 +the hardware that I use is so old and cheap + +00:16:33.640 --> 00:16:33.840 +and weak, I'd have to split it across 2 + +00:16:33.840 --> 00:16:34.340 +machines. + +00:16:37.160 --> 00:16:37.660 +[Speaker 3]: There's also a beauty in making the stuff, + +00:16:39.720 --> 00:16:40.120 +having specific purposes for specific things + +00:16:43.840 --> 00:16:44.160 +where it's just not, yeah, + +00:16:47.980 --> 00:16:48.320 +it's like, I don't want a smart TV that plays + +00:16:52.360 --> 00:16:52.540 +Netflix. I want a Smart TV that has all the + +00:16:55.520 --> 00:16:55.760 +smarts that I turn my smart TV into a TV + +00:16:56.120 --> 00:16:56.620 +monitor. I + +00:17:01.020 --> 00:17:01.520 +[Speaker 1]: Don't want to yeah Really? + +00:17:04.526 --> 00:17:04.540 +I I totally feel that ethic I totally feel + +00:17:04.859 --> 00:17:05.359 +that ethic. + +00:17:13.619 --> 00:17:13.940 +[Speaker 3]: Oh, on the some other things, + +00:17:16.319 --> 00:17:16.440 +like if you want you To do highlighting in an + +00:17:18.560 --> 00:17:19.060 +org mode document you can use org web tools. + +00:17:20.680 --> 00:17:20.880 +I wrote this in the notes But you can use org + +00:17:23.560 --> 00:17:23.720 +web tools to download a web page And then you + +00:17:26.480 --> 00:17:26.980 +can use org remark to start highlighting in + +00:17:29.440 --> 00:17:29.700 +the org mode web page And then because it's + +00:17:30.600 --> 00:17:30.740 +an org mode document now, + +00:17:32.600 --> 00:17:33.100 +[Speaker 1]: right + +00:17:36.200 --> 00:17:36.280 +[Speaker 3]: you can just edit it directly If you have If + +00:17:38.300 --> 00:17:38.760 +you want other people to join in on an emacs + +00:17:40.520 --> 00:17:41.020 +session you could use a package like, + +00:17:44.540 --> 00:17:45.040 +what's it called, crdt.el + +00:17:49.920 --> 00:17:50.160 +That will allow 2 people with 2 different + +00:17:52.320 --> 00:17:52.820 +Emacs configurations to edit the same buffer. + +00:17:58.460 --> 00:17:58.580 +What? And you have a host that can host a + +00:18:00.620 --> 00:18:01.120 +[Speaker 1]: Interesting. + +00:18:05.500 --> 00:18:06.000 +[Speaker 3]: buffer too. And they have 1 optional + +00:18:07.700 --> 00:18:08.200 +extension for org mode that will synchronize + +00:18:10.140 --> 00:18:10.640 +the folding of the org drawers. + +00:18:14.260 --> 00:18:14.760 +[Speaker 1]: Interesting, I will look into that. + +00:18:21.620 --> 00:18:22.120 +[Speaker 3]: Like having I don't like if you want students + +00:18:24.780 --> 00:18:25.280 +like you have H highlight line mode. + +00:18:26.120 --> 00:18:26.620 +These are just some ideas. + +00:18:28.100 --> 00:18:28.420 +It's like you can have like highlight line + +00:18:31.040 --> 00:18:31.540 +mode so people can easily see which line + +00:18:32.900 --> 00:18:33.400 +you're on cursor tracking. + +00:18:36.680 --> 00:18:37.180 +And then you can have other people join in, + +00:18:40.960 --> 00:18:41.320 +students, or yeah, that's just a possible + +00:18:41.320 --> 00:18:41.820 +idea. + +00:18:49.660 --> 00:18:50.000 +[Speaker 1]: Is there anyone else in the big blue button + +00:18:51.680 --> 00:18:52.180 +room who has a question? + +00:19:03.000 --> 00:19:03.280 +All right, I'm going to go over to the pad + +00:19:05.140 --> 00:19:05.280 +and see if there are any pending questions I + +00:19:11.280 --> 00:19:11.780 +can address. Thanks PlasmaStrike. + +00:19:12.980 --> 00:19:13.480 +Yep. + +00:19:29.640 --> 00:19:30.060 +[Speaker 2]: To be tangled into source code or woven into + +00:19:32.720 --> 00:19:33.220 +a documentation file, which could be PDF, + +00:19:36.140 --> 00:19:36.640 +could be Markdown, could be OpenOffice, + +00:19:39.600 --> 00:19:40.100 +could be a notebook format. + +00:19:42.860 --> 00:19:43.260 +This methodology was conceived by Donald + +00:19:51.460 --> 00:19:51.940 +Knuth in 1984. The main purpose of literal + +00:19:54.480 --> 00:19:54.660 +programming is not only to make code or + +00:19:56.720 --> 00:19:57.220 +documentation or output more manageable, + +00:20:01.020 --> 00:20:01.220 +but to allow humans to create a data story to + +00:20:02.960 --> 00:20:03.460 +be pieced from a single source. + +00:20:06.140 --> 00:20:06.340 +What you see on the slide on the left hand + +00:20:08.880 --> 00:20:09.380 +side is the story and code inside an org-mod + +00:20:14.220 --> 00:20:14.440 +file. The file starts with some + +00:20:17.260 --> 00:20:17.760 +documentation, then you write back down the + +00:20:21.660 --> 00:20:22.080 +code, and at the bottom you see an output + +00:20:26.040 --> 00:20:26.500 +file, which is not shown in the slide itself. + +00:20:28.140 --> 00:20:28.440 +In the middle, you have the source code, + +00:20:33.840 --> 00:20:34.000 +which is the result of tangling or opening a + +00:20:36.400 --> 00:20:36.900 +buffer inside offload. + +00:20:38.680 --> 00:20:38.940 +On the very right-hand side, + +00:20:42.540 --> 00:20:42.840 +we have a PDF. Actually, + +00:20:44.100 --> 00:20:44.600 +this is HTML, random.org. + +00:20:48.120 --> 00:20:48.420 +The very same file that you see in the memory + +00:20:52.360 --> 00:20:52.600 +language. So the humans look at some of this + +00:20:54.600 --> 00:20:54.720 +code, and the machines look at other parts of + +00:20:57.600 --> 00:20:58.040 +the code. I actually did all my programming + +00:20:59.760 --> 00:21:00.260 +in the literate way even in the early 1990s, + +00:21:02.720 --> 00:21:02.980 +not using OrgMode, which didn't exist yet, + +00:21:05.660 --> 00:21:06.160 +but using Norman Ramsey's NoWeb preprocessor. + +00:21:09.220 --> 00:21:09.720 +They still use it inside Org Mode today. + +00:21:11.400 --> 00:21:11.900 +This preprocessor, NoWeb, + +00:21:14.260 --> 00:21:14.480 +allows you to tangle code from within an Org + +00:21:16.020 --> 00:21:16.360 +Mode file that is a self-standing file, + +00:21:18.320 --> 00:21:18.820 +much like Org Mode's edit functions, + +00:21:21.520 --> 00:21:21.860 +which export code blocks into buffers in + +00:21:23.100 --> 00:21:23.600 +whatever language the code blocks. + +00:21:28.260 --> 00:21:28.760 +In data science, these interactive notebooks, + +00:21:30.900 --> 00:21:31.400 +in 1 of the interpreted languages, + +00:21:32.980 --> 00:21:33.400 +like Julia, Python, or R, + +00:21:36.900 --> 00:21:37.040 +dominate. The basic technology is that of + +00:21:39.120 --> 00:21:39.340 +Jupyter notebooks, which take their name from + +00:21:42.540 --> 00:21:42.900 +Julia, Python, and R. And these notebooks use + +00:21:43.780 --> 00:21:44.200 +a spruce-stuffed shell, + +00:21:47.440 --> 00:21:47.860 +for example, IPython, and an option to add + +00:21:52.540 --> 00:21:52.940 +SQL cells. Alt mode inside Emacs has a large + +00:21:55.840 --> 00:21:56.260 +number of advantages. Some of them are listed + +00:21:56.980 --> 00:21:57.480 +here over these notebooks. + +00:21:59.160 --> 00:21:59.660 +2 of these stand out particularly. + +00:22:02.860 --> 00:22:03.360 +Different languages can be mixed, + +00:22:05.140 --> 00:22:05.640 +as shown in the image. + +00:22:07.200 --> 00:22:07.700 +While in Jupyter notebooks, + +00:22:10.680 --> 00:22:10.880 +a notebook is limited to running a kernel in + +00:22:13.940 --> 00:22:14.440 +1 language only. The content of the notebook, + +00:22:16.240 --> 00:22:16.560 +its document code or output part, + +00:22:18.520 --> 00:22:18.680 +can be exported in a variety of forms. + +00:22:18.735 --> 00:22:18.790 +[Speaker 3]: We are + +00:22:19.640 --> 00:22:19.840 +[Speaker 2]: currently the only person in this + +00:22:21.020 --> 00:22:21.520 +conference... ...To share with others, + +00:22:23.660 --> 00:22:24.160 +to use one's work in different reports... |