WEBVTT 00:03.720 --> 00:05.280 Okay, guys. 00:07.000 --> 00:14.140 But we will start the next presentation, which is called This Year's Village Badge. 00:14.320 --> 00:20.960 My name is Michael Schloff von Benevitz, and I believe that our AV is working very well. 00:20.960 --> 00:25.140 Thanks so much to SGP and to AGS. 00:25.440 --> 00:29.000 And let me just get started with this. 00:29.000 --> 00:33.660 We have some interesting devices to take a look at. 00:36.700 --> 00:39.100 To begin with, we have... 00:41.640 --> 00:46.380 To begin with, I should turn off my stream so there's no echo. 00:46.380 --> 00:47.500 Okay, that's better. 00:48.680 --> 00:55.000 So this is the high-tech slide deck that you may have heard of with the paper and the pencil. 00:55.040 --> 00:56.980 That's how we're doing it this year. 00:56.980 --> 01:00.020 This year's Village Badge. 01:08.640 --> 01:12.920 And what we have here, we've got basically three days. 01:13.080 --> 01:14.400 We've got Friday. 01:14.460 --> 01:16.040 We've got Saturday. 01:18.140 --> 01:19.860 Let me do this. 01:20.200 --> 01:23.360 We've got Friday, we've got Saturday, and we've got Sunday. 01:23.900 --> 01:27.540 So this is where we are. 01:27.820 --> 01:32.300 And I'm just explaining this because there's a little bit of organization. 01:32.300 --> 01:37.080 Some people are interested in beginner style, novice topics. 01:37.080 --> 01:40.000 Others are into the more advanced stuff. 01:40.000 --> 01:44.600 So we've got this presentation now. 01:44.740 --> 01:48.060 Later, we've got another one. 01:48.060 --> 01:50.900 It's called Getting Started. 01:55.030 --> 02:00.970 Okay, and in this one, we're going to talk about the construction, 02:06.390 --> 02:08.290 how it's made. 02:10.570 --> 02:14.770 A lot of people have been asking about, can they make it on their own? 02:14.770 --> 02:16.030 Is it open source? 02:16.030 --> 02:17.470 Are there design archives? 02:17.470 --> 02:18.750 This type of thing. 02:19.250 --> 02:23.870 So that's what we're going to do now on Friday in this first hour. 02:23.870 --> 02:33.830 Okay, so we're going to talk about the SCM, the source code management, the open source, all of the things that you can store on disk, like the design archives. 02:34.430 --> 02:43.030 And after this hour is over, we'll take a short break and we'll have another presentation with me as well. 02:43.030 --> 02:46.170 Just like Rira said before, this is the Michael evening. 02:46.390 --> 02:49.230 And we will talk about getting started with the badge. 02:49.230 --> 02:56.450 So this second hour, this will be things like, what is the first thing that I can do once I have it in my hands? 02:57.190 --> 02:58.470 This is the way it looks. 02:58.470 --> 03:00.310 So let me just put that on the side. 03:01.110 --> 03:07.090 And then we have on Saturday, I don't have the schedule. 03:08.090 --> 03:11.090 Let me make sure I get this right. 03:16.150 --> 03:18.990 And Saturday, there we have it. 03:19.870 --> 03:23.770 We have on Saturday, the badge clinic. 03:29.710 --> 03:32.810 And this is one full hour. 03:32.810 --> 03:37.210 During the badge clinic, we're going to get into some advanced use. 03:37.330 --> 03:39.270 We're going to do things like 03:46.290 --> 03:48.830 impersonation of other devices. 03:48.830 --> 03:52.090 We will do examination 03:55.830 --> 03:58.930 of other NDEF formats. 04:00.850 --> 04:02.190 So do you get the point? 04:02.190 --> 04:07.550 We're going to do some more advanced stuff here, but this is like office hours too. 04:07.550 --> 04:10.510 So you can ask easy questions if you like. 04:13.330 --> 04:15.990 I hope you can read my writing. 04:16.230 --> 04:17.390 Can you read my writing? 04:17.390 --> 04:20.670 Can everybody raise your hand that can read? 04:20.670 --> 04:22.090 Oh, you can't? 04:22.090 --> 04:23.230 No, you can't? 04:23.230 --> 04:27.490 Okay, then I'll just have to write a bit better. 04:27.630 --> 04:30.010 Okay, on Sunday, let me just check. 04:30.010 --> 04:32.070 We've got more things happening then. 04:35.130 --> 04:38.610 And Sunday, we have another badge clinic. 04:38.610 --> 04:40.490 So let's make a plan for that. 04:45.230 --> 04:51.190 And then this will be a free mic style. 04:51.290 --> 04:53.410 We can do anything we want on Sunday. 04:53.410 --> 04:55.230 Does that sound okay with you? 04:55.230 --> 04:56.470 Hands, please. 04:57.170 --> 05:07.210 So we're going to do on Friday today, a construction, a making of, and then we'll have a getting started, kind of a novice approach. 05:07.210 --> 05:09.930 Tomorrow, Saturday is going to be a badge clinic. 05:10.050 --> 05:11.550 Sunday will be a badge clinic. 05:11.550 --> 05:18.910 And tomorrow is where we get kind of more advanced with interesting things, backup and things like that. 05:19.130 --> 05:21.570 All right, so this kind of fell off to the side. 05:21.570 --> 05:23.450 Let's take a look at that. 05:23.910 --> 05:26.950 So this is the badge. 05:27.630 --> 05:29.290 Let's do this. 05:32.650 --> 05:35.670 It's basically a passive device. 05:35.670 --> 05:40.790 You can tell that there are no, there are no connectors on here. 05:42.230 --> 05:44.430 There are no batteries. 05:47.040 --> 05:49.320 There are no lights. 05:49.320 --> 06:14.060 Obviously, if there are no batteries and no connectors to put energy into this, right, like voltage, like current and amps, then you're not going to have much possibility to run, for example, actuators, things that act on the environment, like little fans that move air or lights that illuminate and emit photons, 06:14.060 --> 06:15.780 turn energy into photons. 06:15.900 --> 06:20.940 So it doesn't have any cable connectors, any batteries. 06:20.940 --> 06:23.300 There's no batteries inside. 06:23.600 --> 06:27.920 If you want to know how thick this is, let me just put a pen up to here. 06:28.060 --> 06:32.640 So this is kind of, you can see approximately the thickness. 06:32.660 --> 06:38.160 There would be possibly space for a very small battery, but it doesn't have one, trust me. 06:38.300 --> 06:39.860 We're going to take it apart soon. 06:39.860 --> 06:40.780 This is Friday. 06:40.780 --> 06:44.580 So we're going to talk about the construction and we'll take one completely apart. 06:44.580 --> 06:46.820 We will destruct one. 06:46.820 --> 06:48.200 No, how do you call that? 06:49.260 --> 06:53.060 We will disassemble, that's the word. 06:53.260 --> 06:56.240 We will disassemble one and then reassemble it again. 06:57.220 --> 06:57.740 Okay. 06:57.740 --> 07:00.300 So I don't know if the design is so artistic. 07:00.340 --> 07:04.260 The pyramid is symbolizes with all the various bricks. 07:04.260 --> 07:09.160 So the bricks are different topics or different things. 07:09.160 --> 07:12.600 At first, they were different NDEF pieces of information. 07:12.820 --> 07:14.780 And then there were different villages. 07:16.220 --> 07:23.600 Because after all, this is shared, the work to produce this intervillage badge is shared among a variety of villages. 07:23.780 --> 07:30.840 It's kind of, we're kind of in the middle of it, the Monero village, but we have a biohacking village, a red team village, IOT village. 07:31.420 --> 07:39.700 There is, and I don't want to miss anybody, but I'm saving the best for last because there is the rogues village as well. 07:39.700 --> 07:43.620 And I'm particularly happy that they've produced a game for this. 07:43.820 --> 07:49.120 Maybe we'll get to that, I think, tomorrow because I haven't figured out the game yet on my own. 07:49.120 --> 07:52.600 It really would be better if rogues village presented that. 07:53.060 --> 07:55.320 But let me just write those down. 07:58.860 --> 08:05.720 And so we, because after all, this slide system really is fantastically elegant. 08:05.720 --> 08:07.500 So let me just write that down. 08:07.500 --> 08:12.800 So these are the intervillages. 08:12.900 --> 08:38.560 We have Monero, we have biohacking, we have IOT, we have red team, and we have the rogues village. 08:41.200 --> 08:42.360 Okay. 08:42.640 --> 08:43.580 All right. 08:43.580 --> 08:47.840 So that's kind of what this crazy little pyramid symbolizes. 08:47.840 --> 08:50.060 I'm sure everyone in the world could do better. 08:50.060 --> 08:51.940 I'm really no artist there. 08:52.160 --> 09:06.280 And the rogues village folks from the rogues chose these very nice symbols, which are kind of a magical, yeah, magical enrichment to what we're doing here. 09:06.280 --> 09:08.580 Because before they were just numbers. 09:08.580 --> 09:12.560 I'm not sure if I have an old badge somewhere. 09:13.000 --> 09:14.100 You do have to be careful. 09:14.100 --> 09:18.780 There are a few photographs of old badges floating around. 09:18.780 --> 09:22.640 You look at one, you realize you like it because it has the numbers one, two, three. 09:22.640 --> 09:24.100 Well, be careful with that. 09:24.360 --> 09:26.840 The new ones, they don't have numbers. 09:26.840 --> 09:28.080 They have these symbols. 09:28.620 --> 09:28.900 All right. 09:28.900 --> 09:30.800 This is important for the game as well. 09:30.800 --> 09:38.300 These symbols have meaning during the rogues game adventure, which we'll get to that a bit later. 09:38.840 --> 09:39.460 Okay. 09:39.460 --> 09:45.120 So let's move to... where's all my paper? 09:46.660 --> 09:54.590 Let's move to components. 09:54.590 --> 09:56.410 Oops, that's a G. 09:56.410 --> 09:58.910 Let's do components. 10:02.990 --> 10:04.770 Let's do that next. 10:04.770 --> 10:06.290 This is a bit unorganized. 10:06.290 --> 10:08.090 We could talk about software. 10:08.090 --> 10:14.570 We could talk about a lot of things, but I'm going to talk about 10:17.670 --> 10:22.990 the hardware components first, not the parts. 10:22.990 --> 10:24.730 You'll see that in a minute. 10:25.070 --> 10:30.250 This is more or less the most important piece. 10:30.250 --> 10:32.710 Let's see if I can go downward. 10:39.520 --> 10:41.340 That zooms in a bit. 10:42.400 --> 10:46.100 So what we saw before was this thing here. 10:48.710 --> 10:49.930 And this is indeed... 10:52.050 --> 10:54.310 and this is indeed the interior. 10:54.310 --> 10:55.550 This is the PCB. 10:55.710 --> 11:00.390 So for all those who think, okay, this thing doesn't look like an electronic device. 11:00.390 --> 11:02.310 This is like a piece of plastic. 11:02.310 --> 11:04.250 Looks like a hockey puck. 11:04.290 --> 11:09.910 I think, yeah, the Monero hardware team probably just cut it into a triangle. 11:09.910 --> 11:11.290 It's a piece of plastic. 11:11.350 --> 11:12.890 So that's not true. 11:12.890 --> 11:15.210 It does have electronic circuits. 11:15.410 --> 11:18.510 You can even see the chips if I just get the lighting right. 11:18.770 --> 11:24.190 There are some integrated circuits, some switches, some traces, copper. 11:24.190 --> 11:35.270 If I turn it over, you really see that there's an electronic device because then we have a trace antenna for the radio transceiver inside. 11:35.270 --> 11:38.690 And then there's some hacking things that you can do with that as well. 11:39.150 --> 11:41.510 So that's the PCB. 11:42.430 --> 11:42.950 Okay. 11:42.950 --> 11:44.730 This is how it looks in the end. 11:44.730 --> 11:48.750 This is the finished piece. 11:52.750 --> 11:54.730 And this is the PCB. 11:58.000 --> 12:01.480 And what else is there? 12:07.400 --> 12:11.300 So we can go back even one more step. 12:11.300 --> 12:15.140 We can, let's see if I can remove this carefully. 12:16.460 --> 12:18.200 We can. 12:22.110 --> 12:27.650 We can see what the PCB looks like before it's assembled. 12:28.490 --> 12:29.610 All right. 12:29.610 --> 12:42.490 So I'm not sure if this works so well, but so this is, oh, I know what I'm doing wrong. 12:42.490 --> 12:43.750 That's what I need to do. 12:43.890 --> 12:45.030 There we go. 12:45.370 --> 12:47.110 So this is the panel. 12:47.110 --> 12:54.350 You can see that there are four PCBs in here, but they don't have any parts on them. 12:54.350 --> 12:56.650 If they did, they would look like this. 12:57.250 --> 12:58.530 See the difference? 13:00.150 --> 13:10.390 The parts are so small, in fact, it's a bit difficult to see them, but there are some parts here, one, two, three, and then there's one, two, three switches. 13:10.510 --> 13:13.270 These are kind of very slim devices. 13:13.390 --> 13:15.090 And this is the PCB as it starts. 13:15.090 --> 13:18.670 So let's go back to there. 13:19.770 --> 13:20.870 So that's what we're doing. 13:20.870 --> 13:22.610 We're starting with a PCB. 13:23.390 --> 13:25.250 We're starting with a PCB. 13:25.870 --> 13:32.610 We put the parts on the PCB, and then we end up with the assembled PCB. 13:32.610 --> 13:41.610 And from there, we're going to do a few other things like make it look like this. 13:45.040 --> 13:48.120 See how that's missing the plastic side? 13:48.240 --> 13:56.700 This is really just a PCB sandwiched in a front overlay and a back piece of leather. 13:57.860 --> 14:00.600 You can see one of them is orange and one is black. 14:01.220 --> 14:05.580 So now you're probably guessing there may be other colors as well, which is true. 14:06.520 --> 14:11.760 So from the ground up, we have the raw PCB, the assembled PCB. 14:11.760 --> 14:17.000 We place the membrane overlay is the proper name for it. 14:20.140 --> 14:23.080 And membrane overlays look like this. 14:23.080 --> 14:24.560 They come in a big sheet. 14:28.330 --> 14:30.790 And you can see that they are very thin. 14:31.410 --> 14:33.630 It's basically an adhesive. 14:33.630 --> 14:42.090 So I peel this off and place it on there. 14:42.090 --> 14:43.830 And that's what you get after that. 14:43.950 --> 14:46.450 The back is this piece of leather. 14:46.450 --> 14:48.810 You can see that I've cut these out with a laser. 14:49.970 --> 14:59.070 So the reason that we're putting leather on the back is because these badges often rub against other things. 14:59.070 --> 15:03.790 You place this back to back on, for example, a phone. 15:04.550 --> 15:09.650 So this is the classic use case. 15:09.650 --> 15:25.990 You take a badge, you put it on the phone, and then when it smacks on the phone there, it's going to scratch your lens unless it has, for more narrow village badges, right? 15:25.990 --> 15:30.250 Because we're using leather, we're using exotic stuff like front overlays. 15:30.890 --> 15:32.310 And so every year is a bit different. 15:32.310 --> 15:35.410 This year we have some unique materials, right? 15:35.410 --> 15:41.350 The only thing that's missing is the plastic piece. 15:41.350 --> 15:42.770 This is the frame. 15:43.090 --> 15:47.830 This is made from liquid plastic, which is ultraviolet hardened. 15:47.830 --> 15:49.170 So it's hard enough. 15:49.170 --> 15:50.290 It's somewhat brittle. 15:50.290 --> 15:52.590 If I really pull hard, I can break it. 15:52.590 --> 16:05.830 But you get the idea after you have sandwiched the PCB with a front overlay and the rear leather, and this is what you put on here to get to complete the device. 16:07.250 --> 16:21.090 It's not really so important to show how this is done properly because the do-it-yourself models do not come with a plastic frame because it would be very difficult to put on. 16:21.090 --> 16:23.190 It's actually, they usually break. 16:24.490 --> 16:25.710 But I got it. 16:25.710 --> 16:27.270 Okay, I think I got it. 16:27.810 --> 16:28.810 Yeah, you see that? 16:28.810 --> 16:30.070 You see, so this one broke. 16:30.070 --> 16:35.430 So that's the reason we're not sending these frames out in an unassembled manner. 16:35.430 --> 16:38.110 I mean, that's an excellent... I don't know. 16:38.110 --> 16:43.630 I don't know if that's good or bad, but this really proves the point. 16:43.830 --> 16:50.470 We have a need for helping people learn and sending do-it-yourself models, which cost us less time. 16:50.470 --> 16:52.230 And so they're less expensive. 16:52.390 --> 17:00.270 And the reason we didn't do it with a plastic frame is because they're brittle enough that it's very difficult to put them on. 17:00.290 --> 17:06.790 And so when we do this in the factory, we're breaking one, we take another one, that one doesn't break. 17:06.790 --> 17:10.470 We get our orange one or red one, the green one breaks. 17:10.830 --> 17:16.330 And so we're kind of allowed to get sloppy or to make these mistakes in the factory. 17:16.330 --> 17:27.670 But if we send one frame out, which with each of these sets, and the poor person, wherever they get it, maybe they're on a ship in the middle of the Atlantic, can't receive post for another three months. 17:27.670 --> 17:31.470 They break their frame, then they don't have, you know, it's just not nice. 17:31.470 --> 17:37.870 So we are sending do-it-yourself models without these plastic frames. 17:37.870 --> 17:43.430 And part of the do-it-yourself system, the approach, it's called you make your own frame. 17:43.430 --> 17:46.870 So you can probably order one. 17:46.870 --> 17:50.790 I mean, the open source archive shows how to construct the frame. 17:51.310 --> 18:04.650 But we prefer that you go, you walk down the street or across the city where you live, go to a hackerspace, a maker lab, where they have machines that can produce plastic parts. 18:04.810 --> 18:16.250 And you take the model, you download it off of the internet, where we've stored all of the design, and you produce your own plastic frame. 18:16.250 --> 18:18.110 I mean, it's not that difficult. 18:18.110 --> 18:21.090 It just, you have to be determined and motivated. 18:21.090 --> 18:29.890 And that's how you get a plastic frame if you don't want to receive one purchased in a kit with a badge like this. 18:30.490 --> 18:31.030 Right? 18:31.030 --> 18:40.570 So I kind of went all the way from the start of the unassembled board to the assembled device now. 18:41.590 --> 18:51.550 The intermediate steps like peeling off the adhesive paper and peeling of the leather, it's not that easy, but you get the picture. 18:51.550 --> 19:00.610 If you do receive a do-it-yourself or DIY badge, it's going to be quite obvious where the parts go, right? 19:00.610 --> 19:08.950 There is a user manual, but I'm hoping people aren't too confused about that. 19:09.890 --> 19:13.330 So this is where we're at now. 19:15.430 --> 19:19.050 What we can do next is take a look at... 19:22.130 --> 19:24.990 Oh, I kind of missed a couple things. 19:25.070 --> 19:27.710 So we're going to backtrack just a bit, shall we? 19:28.270 --> 19:32.630 So this is kind of what the pieces of plastic look like. 19:32.630 --> 19:34.510 This one, I got it wrong. 19:34.510 --> 19:36.630 So it's broken up here. 19:36.630 --> 19:37.870 It stopped working correctly. 19:37.870 --> 19:39.390 This is the green. 19:39.450 --> 19:41.750 And you can kind of see that it's translucent. 19:42.050 --> 19:52.330 So if you do a DIY attempt and you make your own plastic enclosure frame, you have a wide variety of choices. 19:52.330 --> 19:54.050 You can do clear plastic. 19:54.050 --> 19:57.470 This is why the ultraviolet cured method is so nice. 19:59.310 --> 20:01.810 Anyway, so I thought that might be worth demonstrating. 20:01.810 --> 20:07.210 This is approximately 20 frames, but the job stopped too early. 20:07.210 --> 20:09.670 So you can see that it's a bit messed up. 20:10.350 --> 20:15.350 And that's where the ICs come out of, tapes like this, right? 20:15.350 --> 20:18.190 So this is for those of you who are maybe a bit curious. 20:18.450 --> 20:21.730 I can't even get close enough, probably, to show you these parts. 20:21.730 --> 20:22.990 They are so small. 20:25.110 --> 20:27.670 And these are integrated circuits. 20:28.550 --> 20:37.110 So in an advanced badge clinic, I won't promise anything, but I do have a microscope. 20:37.450 --> 20:42.850 And I'm going to try to get a bit more wild and crazy with the OBS open source. 20:42.910 --> 20:43.670 What is it? 20:43.670 --> 20:45.550 Open Broadcasting System. 20:45.830 --> 20:47.890 I'm a big dummy with video. 20:47.890 --> 20:53.490 So if I get it right, then we can look at these integrated circuits under a microscope . 20:53.490 --> 20:57.510 But this is actually what is placed in these positions. 20:57.510 --> 20:59.610 One, two, three. 21:00.770 --> 21:01.450 Okay . 21:01.450 --> 21:03.270 So that's the construction. 21:04.530 --> 21:06.570 And here are the switches. 21:07.230 --> 21:11.750 If you can see that there are some switches on there. 21:11.970 --> 21:14.010 These are dome switches. 21:14.150 --> 21:15.610 This is not very typical. 21:15.610 --> 21:18.530 These dome switches are nearly never used. 21:18.530 --> 21:21.090 And you need a front overlay if you're going to... 21:21.690 --> 21:23.590 see how that's embossed there? 21:24.010 --> 21:30.270 And it makes a clicking sound when you click on there. 21:30.270 --> 21:31.710 That's because it's tactile. 21:31.710 --> 21:33.310 So it's a tactile switch. 21:33.570 --> 21:35.250 And it's embossed. 21:35.250 --> 21:36.990 And that's what the switches look like. 21:36.990 --> 21:38.650 They're called dome switches. 21:40.070 --> 21:40.750 Right. 21:41.390 --> 21:42.450 So... okay. 21:42.450 --> 21:44.350 I'm never going to get those out of it. 21:47.950 --> 21:51.170 Keep this place clean is what they always say at the lab. 21:51.690 --> 21:54.790 Here's a sample of the liquid plastic. 21:54.990 --> 21:58.150 So I'm not even going to open this up because it stinks quite bad. 21:58.410 --> 22:00.310 And it's photosensitive. 22:00.650 --> 22:02.610 It's the photo emulsion. 22:03.270 --> 22:05.890 So that's kind of how these badges are made. 22:06.370 --> 22:09.750 There's the frame. 22:09.750 --> 22:10.190 Okay. 22:10.190 --> 22:20.530 So once in a while, I'm just going to take a look on Discord because if you have questions in between... 22:22.750 --> 22:26.510 I'm not sure if I can do this Discord and OBS at the same time. 22:26.510 --> 22:27.510 Does that work? 22:27.650 --> 22:29.050 Justin, does that work? 22:29.450 --> 22:30.630 Answer me. 22:33.600 --> 22:34.000 Yeah. 22:34.000 --> 22:34.280 Okay. 22:34.280 --> 22:35.000 So let's see. 22:35.000 --> 22:36.940 I'm starting Discord now. 22:36.940 --> 22:48.240 And I will try to respond to questions because as we go, some of these things are extra interesting or extra confusing or you made one just like that, but you have this question. 22:48.240 --> 22:52.180 So I'm going to try to maybe field a few questions as we go. 22:52.300 --> 23:01.320 When we leave it towards the end and we're talking a whole hour, then you may forget the question. 23:01.480 --> 23:03.180 That would not be good. 23:04.060 --> 23:05.360 Here, check this one out. 23:05.360 --> 23:06.720 This is another frame. 23:06.720 --> 23:11.720 This is a kind of a... it's not white, but it's not clear either. 23:11.780 --> 23:12.820 What do you call that? 23:12.820 --> 23:15.160 Milk color or ice? 23:15.260 --> 23:16.920 I have no idea. 23:19.240 --> 23:20.760 Anyway, so that's kind of nice. 23:20.760 --> 23:35.200 And the advantage for all of you who maybe are experienced with fused deposition modeling style 3D printing, that's where you have hard plastic and you melt it into a new shape. 23:36.220 --> 23:45.580 The big advantage, in my opinion, to this liquid photo emulsion is that you can actually mix them. 23:45.580 --> 23:54.460 You take a bottle like this and you mix it with a blue and you mix the blue with a red, you end up with purple. 23:54.460 --> 23:55.080 Right? 23:55.080 --> 23:56.660 So that's pretty nice. 23:56.660 --> 24:03.380 And then you pour in some transparent, and so it makes the purple that was solid, it's translucent now. 24:03.420 --> 24:06.720 So yeah, those are some tips if you're going to make your own frame. 24:08.160 --> 24:11.500 You can do that and you can maybe... it depends on the printers. 24:11.500 --> 24:19.780 The SLA, the stereolithographic printers are a lot more expensive than the FDM, the fused deposition modeling printers. 24:19.900 --> 24:21.340 You can use either one. 24:21.340 --> 24:27.240 You may have to adjust the model just a bit if you use FDM because the technique is a bit different. 24:27.240 --> 24:29.940 So the overhangs, well, it's not important. 24:29.940 --> 24:34.300 We'll maybe get to that if there is a question and I'll make a drawing here on the paper. 24:35.660 --> 24:36.940 All right. 24:36.940 --> 24:39.580 So what we were going to do 24:43.090 --> 24:51.260 was move to the package contents. 24:51.260 --> 24:52.240 Shall we? 24:52.500 --> 24:53.580 Shall we do that? 24:53.580 --> 24:55.220 Can I find a package? 24:57.200 --> 24:58.340 Probably not. 24:58.340 --> 25:00.080 Yes, I found one. 25:01.260 --> 25:02.800 All right. 25:06.600 --> 25:08.940 So there's a package. 25:10.160 --> 25:15.820 They're going to always be black like this, so don't send back black packages. 25:15.820 --> 25:17.120 It's not the Mafia. 25:17.120 --> 25:19.140 It's Monero Devices. 25:19.240 --> 25:23.800 Sends you a black package in the mail just for extra hackiness. 25:23.800 --> 25:24.320 All right. 25:24.320 --> 25:25.940 So that's the only thing that's in there. 25:26.940 --> 25:32.220 So you get a pretty spiffy box this time. 25:32.220 --> 25:38.480 We had some problems last year with the... do you remember those? 25:38.600 --> 25:41.000 We had some problems with those. 25:41.540 --> 25:48.860 On the side there, these connectors were getting bent because we didn't have proper packaging. 25:48.860 --> 25:51.120 How can I focus on that? 25:52.160 --> 25:54.360 I don't want my fingerprint in there. 25:54.680 --> 25:56.200 No, it's not focusing, guys. 25:56.200 --> 25:57.140 But you get the idea. 25:57.140 --> 26:03.240 There is a metal piece on the side, and those were getting bent. 26:03.240 --> 26:06.500 I think some of us had to bend them back in shape. 26:06.500 --> 26:12.000 So we didn't have very good boxes last year, and we learned our lesson. 26:12.000 --> 26:13.140 That's kind of what this is about. 26:13.140 --> 26:19.760 We're always doing experiments, trying new things, and then about half of them work, and the other half, well, they don't. 26:20.320 --> 26:20.820 All right. 26:20.820 --> 26:22.020 So this is the box. 26:22.020 --> 26:36.440 It has a label on the side so we know what it is, because there is black, there's orange, red for the red team, blue, blue team, you know, green for Matrix Green and biohacking, and orange for Monero. 26:37.580 --> 26:40.600 So that's the back of the box. 26:40.600 --> 26:49.140 We have a great UPC code from our friends at Hack5, who is one of the premier shops as well as Cypher Market that are carrying this. 26:49.540 --> 26:55.780 We decided to test and experiment a bit with holographic seals on the side. 26:55.780 --> 26:57.260 I'm not sure who's doing this. 26:57.260 --> 27:01.940 I think there are a few other manufacturers of secure hardware that do this. 27:02.080 --> 27:11.740 I don't think... I mean, I'm going to keep... we're going to keep putting holograms on there, but not for security. 27:11.780 --> 27:12.660 Okay. 27:12.880 --> 27:14.320 I mean, think about it. 27:14.320 --> 27:20.580 If you have a hairdryer, you probably can get these holograms off quite easily. 27:20.580 --> 27:21.400 What do you do then? 27:21.400 --> 27:25.840 You open the package, you manipulate the thing, right? 27:25.840 --> 27:32.040 You program new identifiers on there or some other sloppy thing, anything you like, real dirty stuff. 27:32.160 --> 27:34.660 Then you put the device back in the package. 27:35.520 --> 27:38.940 You're very careful with the seals that you removed. 27:38.960 --> 27:40.860 I mean, I haven't tested this too much. 27:40.860 --> 27:45.820 I was hoping that the intrusion detection team, there's an actual village. 27:45.860 --> 27:47.520 I'm sorry, not team, it's a village. 27:47.520 --> 27:53.980 I was hoping that intrusion detection would be on board with the intervillage, that they would be one of the, whatever, five or 10 villages. 27:53.980 --> 28:00.300 But the intrusion detection village is not active or participating this year. 28:00.300 --> 28:01.940 This is like a few others. 28:02.100 --> 28:05.960 Sky team, Skytox, I'm sorry, Skytox is not participating. 28:06.180 --> 28:08.160 There are a few villages like that. 28:08.160 --> 28:11.300 So we got unlucky with that. 28:11.300 --> 28:17.260 And we just have to wait until we get a report from them, if this is good for any reason at all. 28:18.000 --> 28:27.520 The one thing that is very, very good about this, if we can get a focus, is that it is quite attractive. 28:28.500 --> 28:36.660 Do any of you see the symbol, which is inside the holographic 3D? 28:37.980 --> 28:39.740 You probably do. 28:39.740 --> 28:44.420 You're just all raising your hands and I can't see you. 28:44.800 --> 28:45.480 All right. 28:45.480 --> 28:49.860 So that's kind of a very, very, very cool appearance, right? 28:49.860 --> 28:52.720 That's one of the reasons we will keep using these. 28:54.960 --> 29:00.420 And maybe if we get lucky, we kind of learn how to use them, how to apply them in a manner. 29:00.420 --> 29:12.380 The truth is, if you remove this, it will leave a, what do they call it, self-destructive message behind. 29:12.380 --> 29:13.640 It says void. 29:14.120 --> 29:15.960 You can't choose too many. 29:15.960 --> 29:17.020 Void is one of them. 29:17.020 --> 29:25.280 So if you peel that off, I won't demonstrate now, but if you peel it off, it is pretty easy to see that there was a seal there and now there's not anymore. 29:25.280 --> 29:32.080 And if you put a new seal on, then it covers up the void marking. 29:32.200 --> 29:35.400 But if you look at it closely, there's something wrong with it. 29:35.400 --> 29:36.200 You can tell. 29:36.200 --> 29:48.360 So that's kind of, if we get far enough into examining this intrusion detection holographic seal system, we may get lucky enough to make it useful for us. 29:48.360 --> 30:04.900 It probably will at least solve the very low hanging fruit problem where a person would just go into the box, replace the badge with one that they have in their pocket because theirs is broken and yours is not. 30:04.900 --> 30:09.920 So this is kind of a low hanging fruit intrusion protection slash detection. 30:09.920 --> 30:16.980 We've got the shrink wrap to make it, you know, set up, put another five minutes of time for an attacker. 30:16.980 --> 30:23.480 We've got the holographic seals and the only, there's not a good reason for this. 30:23.480 --> 30:31.920 I mean, we do pre-program these three EEPROMs with data out of the factory and they're random data. 30:31.920 --> 30:42.060 So we don't store them, which means it's impossible to track or obtain, you know, any organization, institute, agency. 30:42.060 --> 30:52.760 It would be impossible to capture the database of all of these factory programmed identifiers because we don't store them, right? 30:52.760 --> 30:53.800 It makes no sense. 30:53.800 --> 30:56.520 We're just writing random data to each one. 30:56.520 --> 31:17.140 But if there were a meaning, if we had some reason to ensure that they're unique or something like that, to use them for signing documents, you know, like a public address or something like that, then these holographic seals may help a bit. 31:17.140 --> 31:30.600 They would at least protect and defend against the low hanging fruit attacks where without the shrink wrap, without the holographic seal, it would just be another 15 minutes faster to make that replacement and intrusion. 31:30.900 --> 31:31.500 All right. 31:31.500 --> 31:46.340 So that's just what I wanted to show is kind of a generic thing that we can reuse maybe for the next couple of months or a it's really laborious, time consuming and boring to design, make, and communicate with gift box manufacturers. 31:46.340 --> 31:48.760 So I don't want to ever do that again. 31:48.780 --> 31:54.920 And so we're going to have quite a few runs at this generic packaging, and this will be the first one. 31:55.480 --> 31:56.400 All right. 31:56.640 --> 31:59.400 So let's open one of these boxes up. 31:59.540 --> 32:03.520 That's how it is when we have the shrink wrap off. 32:03.580 --> 32:06.680 I'm always using this to open it up. 32:06.800 --> 32:10.600 It's a poor man's wrench, I guess. 32:11.140 --> 32:12.780 Come on, open. 32:13.080 --> 32:13.520 All right. 32:13.520 --> 32:17.340 So there we have a do -it-yourself model. 32:17.340 --> 32:41.200 I can tell because the do-it-yourself model has the black and white, cheap printed on a laser printer manual, whereas the more elegant model, that's the one that comes with the colorful frame, that comes with a color manual. 32:41.540 --> 32:49.060 And so the reason I want to show this is because I personally think this manual is the nicest part of the entire package. 32:49.060 --> 32:49.300 All right. 32:49.300 --> 32:58.300 If you're excited about holographic seals and photo emulsion, stereolithography and all that stuff, no, you got it wrong. 32:58.300 --> 33:02.840 This is definitely the nicest manual I've ever seen in my life. 33:03.440 --> 33:05.220 So the printers got it right. 33:05.220 --> 33:07.440 They put it on just the right gloss. 33:07.440 --> 33:09.500 They got the colors very good. 33:10.700 --> 33:22.320 But the main reason this thing looks beautiful is that we got lucky and a very talented illustrator and graphic designer contributed the design. 33:22.480 --> 33:25.440 I don't know if I'm allowed to say who it is. 33:25.440 --> 33:26.820 Can anybody guess? 33:30.340 --> 33:31.620 Revar, what do you think? 33:31.620 --> 33:32.520 Who is this? 33:33.340 --> 33:34.000 Really? 33:35.700 --> 33:37.860 No, that's not... yeah, that's him. 33:37.880 --> 33:38.500 All right, Revar. 33:38.540 --> 33:40.100 Revar got it right. 33:41.460 --> 33:42.200 Okay. 33:42.440 --> 33:45.180 So anyway, so this is the manual. 33:45.360 --> 33:47.000 We've got a quick start there. 33:47.000 --> 33:48.280 It's rather clear. 33:48.280 --> 33:49.720 It has a couple models. 33:49.720 --> 33:51.280 Their hands are on there. 33:53.020 --> 33:54.500 Lots of big writing. 33:54.500 --> 33:56.060 There's a bill of materials. 33:57.260 --> 34:01.720 There are a few people that participated and then it's double-sided. 34:03.120 --> 34:04.740 Yeah, I really like this. 34:05.800 --> 34:07.360 There is some code there. 34:07.360 --> 34:08.960 There's just enough. 34:08.960 --> 34:12.140 You know, this is not like a 60, a 50, 60 page manual. 34:12.140 --> 34:16.060 It's not stapled in the middle to make it read like a book. 34:18.620 --> 34:20.040 But you get the idea. 34:20.040 --> 34:21.960 I mean, this manual is just very, very nice. 34:22.860 --> 34:23.920 I don't know why. 34:25.220 --> 34:44.260 I mean, I'm just saying that my opinion is that it's very nice and that I wish that the illustrator and graphic designer would talk to us about it and to come on and explain his methods, his techniques, everything she or he does is open source. 34:44.260 --> 34:46.940 And so, I mean, the person is just wonderful. 34:47.380 --> 34:56.040 Anyway, so there's reasons which are not so interesting why we have a color manual and a black and white one. 34:56.040 --> 35:02.400 We had to do a second one because we got the idea to do a do-it-yourself model a bit late. 35:02.400 --> 35:06.800 And then we didn't want to have the frame on here, which was confusing. 35:06.800 --> 35:08.920 The do-it-yourself model doesn't come with a frame. 35:10.900 --> 35:13.500 That's what it comes with, but we'll get to that in a bit. 35:14.120 --> 35:18.160 And so, we needed kind of a different, basically a different manual. 35:18.160 --> 35:27.180 So, this tells you how to put it together, which really only makes sense if you have a parts kit, like a do-it-yourself parts kit. 35:27.960 --> 35:28.180 Right? 35:28.180 --> 35:34.660 So, this is kind of similar, but it's just not as beautiful, not the printing, you know, glossy paper, not as large. 35:36.080 --> 35:41.100 But you do get a manual either way, which I think is kind of important anyway. 35:41.100 --> 35:48.580 So, that's how we got to the inside of this do-it-yourself kit, right? 35:48.580 --> 36:02.160 So, this is the do-it-yourself, the less expensive one, the one that I actually recommend to all the hardware hackers, because let me tell you, after you remove all of this foam and stuff, what you end up with is the raw PCB like this. 36:02.160 --> 36:05.580 I mean, it does have assembled switches and ICs. 36:06.500 --> 36:25.560 But what I'm saying is that instead of an already placed piece of leather here, which blocks the circuits, what you end up with, if you receive a do-it-yourself model, is the surfaces which you can solder on. 36:25.560 --> 36:34.720 You can inspect them, you can attach probes, you can put a multimeter, an oscilloscope on there, and you don't have to rip the leather off. 36:35.280 --> 36:49.640 It's a bit unfortunate, let me say, not really disingenuous, but unfortunate that when you put the leather on, that's this stuff over here. 36:49.640 --> 36:56.660 When you put the leather on the back, the adhesive is so strong that it's kind of difficult to get it off. 36:57.440 --> 37:02.680 So then you have the problem, if you want a lanyard on there, are you going to drill through the leather? 37:02.680 --> 37:08.480 There's all this stuff that is easier to do before you assemble it. 37:08.480 --> 37:27.280 So that's the reason that you may like a do-it-yourself model instead of the fully assembled, fully luxurious, the most elegant one with the made-for-you color translucent SLA photo emulsion frame, all that stuff, right? 37:27.280 --> 37:28.280 And the color manual. 37:28.280 --> 37:31.020 I mean, I don't know, I'm just trying to give people a choice. 37:31.020 --> 37:32.260 I think choices are good. 37:32.260 --> 37:35.940 So you can do what you want. 37:35.940 --> 37:40.500 Anyway, this is what comes in the do-it-yourself model. 37:41.500 --> 37:52.070 You take this out and then you receive three components. 37:52.550 --> 37:58.370 It's quite obvious that the assembled PCB is there. 37:58.370 --> 38:15.570 We didn't want to send these out unassembled to the do-it-yourselfers because, and it's not going to, I don't think it will focus, but because the integrated circuits are so small that it's really difficult. 38:15.570 --> 38:17.550 Let me just show you in comparison. 38:18.110 --> 38:22.750 I do have somewhere, here they are. 38:26.280 --> 38:30.040 So I do have somewhere some standard size parts. 38:31.640 --> 38:38.960 And so we can, for a quick comparison, we can show, great, I lost it. 38:38.960 --> 38:40.300 All right, here it is. 38:40.300 --> 38:47.180 So we can show the size of a normal part, the SMT surface mounted technology part. 38:49.460 --> 38:57.380 And if you look beneath them, that's where the ICs are for the intervillage batch. 38:57.380 --> 38:58.720 That's how big they are. 38:58.720 --> 39:14.300 And what that tells you is that if these PCBs, printed circuit boards, really did arrive in your mailbox as a do-it-yourself parts kit, and you had to solder these integrated circuits onto the board, you just might go crazy. 39:14.300 --> 39:19.140 I mean, you definitely would abandon the project, give up, and you would not have a working badge. 39:19.140 --> 39:31.220 That's why we have shipped even the do-it-yourself models in a partially assembled state. 39:31.220 --> 39:34.240 These switches are a bit difficult to get on there as well. 39:34.240 --> 39:45.560 And the manual pages, which would be required to explain how to do this and get it centered just right, and how to understand that the circuit is not shorted or anything, would be another 10 pages. 39:45.560 --> 39:51.140 It just makes everything sloppy, difficult, unappealing, and yeah, we don't need that. 39:53.420 --> 40:04.520 Right, so now you know what components you receive in the bag when you receive a kit of parts. 40:04.520 --> 40:05.880 That's these here. 40:05.880 --> 40:12.320 This is the deconstruction or the before you build and construct your DIY model. 40:12.740 --> 40:21.320 And I think it's clear enough already, because we've talked about it, that the membrane overlay or the front cover, this goes on here, right? 40:21.320 --> 40:24.040 You have to peel off the back. 40:24.040 --> 40:25.880 It's kind of like a sticker. 40:25.880 --> 40:32.200 So you peel that off, put that on there, it's going to be all crooked, right? 40:32.200 --> 40:34.900 I mean, I may give some tips later on. 40:34.900 --> 40:37.640 It's, you know, if you get it crooked, you can readjust it. 40:37.640 --> 40:39.220 It's quite easy to do that. 40:40.220 --> 40:42.260 So, and then you turn it over. 40:42.980 --> 40:44.720 And that's the leather. 40:44.720 --> 40:50.660 You take the peel off of the leather, the adhesive peel, and then put it on there. 40:51.700 --> 40:57.420 And after you do that, you end up with almost the same thing. 40:58.760 --> 41:00.880 God, this place is a mess. 41:02.000 --> 41:08.340 Would one of the village people please come over here and clean this up? 41:08.900 --> 41:20.260 Because it's really difficult to give a presentation at the same time as... So I do need an assistant to come over to this table and clean up my just load of crap here. 41:20.380 --> 41:20.840 All right. 41:20.840 --> 41:24.700 So that was a joke in case you don't know, there's nobody else in this room, right? 41:24.700 --> 41:27.120 I keep saying, please raise your hands. 41:27.460 --> 41:28.580 All right. 41:28.860 --> 41:30.120 Nice jokes. 41:30.400 --> 41:30.760 Okay. 41:30.760 --> 41:36.580 So this is the pre-assembled, no, not pre-assembled, what do you call that? 41:36.580 --> 41:42.600 The unassembled, the not yet pre-assembled kit of parts for the do-it-yourself. 41:42.600 --> 41:48.780 And after you put the front overlay on and the back leather, then it ends up like this. 41:48.780 --> 41:51.040 You cannot choose a color for the DIY. 41:51.040 --> 42:05.500 We're just considering, okay, people can choose five colors for the pre-assembled, five for the do-it-yourself, then they can choose what, if they get a frame as well, you know, no, we don't want more than like a half dozen choices. 42:05.680 --> 42:09.360 This starts to get too difficult to service, right? 42:09.360 --> 42:13.540 So once you, if you do choose a DIY, it seems that they were quite popular. 42:13.540 --> 42:19.060 Most people want these because I don't know why, but it's more fun to put it together yourself, right? 42:19.240 --> 42:28.740 There's a few disadvantages like, well, whatever, but you get that, then it turns into this after you're finished building it yourself. 42:28.880 --> 42:33.660 You'll have to print your own 3D frame at the hackerspace. 42:33.660 --> 42:36.560 And then you put that on and that completes your device. 42:36.740 --> 42:37.080 All right. 42:37.080 --> 42:44.800 If you like the idea of receiving a color manual, I mean, anybody can do that as a beauty of open source. 42:44.800 --> 42:50.980 You can even have a color manual for free because you can download it, right? 42:50.980 --> 43:05.220 It's just a matter of if you print it, it's not going to be this size pre-folded by folding machines, perfectly 90 degree angles with no bleed to the edge printing and glossy ink, right? 43:05.220 --> 43:08.020 It's just, but you don't need that anyway. 43:08.020 --> 43:09.000 What do you need? 43:09.000 --> 43:14.180 You need a file download, which you can find on our shop. 43:14.180 --> 43:22.720 That's where you purchase, you receive a device, but you can download the free of charge user manuals as well. 43:22.720 --> 43:28.520 The black and white one, the color one, you get all that stuff. 43:28.520 --> 43:31.560 I mean, there's not a whole bunch of files to download there. 43:31.560 --> 43:46.900 What it's really meant for, the shop.monero devices.com, it's really meant for distribution, for helping us replace this physical model where people without masks are walking next to each other and saying, hi, I want a badge. 43:46.900 --> 43:50.900 And then we say, okay, there you go. 43:50.900 --> 43:52.520 Put it in your hands, right? 43:52.520 --> 44:02.120 We have to replace that pre-pandemic model with a virtual, what distributed nobody in the same room model. 44:02.120 --> 44:08.440 And that's why we created the shop, the factory shop called shop.monerodevices.com. 44:08.680 --> 44:20.360 That's where you can download manuals, but it's not made, it is made to replace the personal meeting in a room, pick up your hardware device system. 44:20.360 --> 44:31.740 What it's not made for is to replace the public repository where all of the design files, the archives and other things are found. 44:31.740 --> 44:37.680 Like for example, the source code for the manual is there. 44:37.680 --> 44:45.680 The PDF itself, the finished proof and copy is on the shop, as you might expect. 44:45.740 --> 44:48.940 And the source code for this is in the repository. 44:50.200 --> 45:00.120 Yeah, I'm not very well equipped, organized to start opening screen scraped and websites. 45:00.120 --> 45:02.820 Let's do that tomorrow, shall we? 45:03.020 --> 45:08.140 But, and we'll continue on just inspecting the components right now. 45:08.140 --> 45:11.680 But there is the S, it's called SCM. 45:11.680 --> 45:13.400 I'll write that down. 45:20.260 --> 45:23.040 So a couple URLs to remember. 45:23.040 --> 45:25.700 We've already covered the shop. 45:31.860 --> 45:33.920 That's for distribution. 45:33.920 --> 45:38.560 Like we always do in the village physically, we are now doing online. 45:39.300 --> 45:40.680 There. 45:40.680 --> 45:43.660 And then we have SCM. 45:45.340 --> 45:48.220 Then we have the SCM, which stands for 45:53.560 --> 45:58.580 source code management. 46:01.960 --> 46:04.260 Do you like the way I did that sideways? 46:05.300 --> 46:11.000 Does that help you if you're side to side, can't deal with it? 46:11.420 --> 46:13.240 All right, so you get the idea. 46:13.240 --> 46:15.580 This is Monero devices. 46:17.380 --> 46:27.920 All right, and the SCM, the source code management system, that's where you get the raw sources. 46:27.920 --> 46:29.040 What else should I call it? 46:29.040 --> 46:39.340 So you, I don't think you can receive the PDF version of the manual there, but you can receive the SVGs there, the scaled vector graphics, right? 46:39.340 --> 46:47.880 And then it's a bit difficult to construct a PDF from the scaled vector graphics because of fonts and things like that and lines. 46:48.440 --> 46:50.880 But if you want the PDF, you get it there. 46:51.440 --> 46:54.820 All right, so where are we and how much time do we have? 46:54.820 --> 47:00.120 I'm going to just take a look, see if we're doing okay. 47:00.120 --> 47:09.160 Now, what I'm doing right now is I'm going to our Discord DefCon channel. 47:09.160 --> 47:11.020 It's the village. 47:11.200 --> 47:22.260 Just like we have SCM and shop.monerodevices.com, we have this year no room at Valley's and no room at Paris or anywhere else, Flamingo. 47:22.260 --> 47:29.160 Instead, we have a chat room, a series of chat rooms on the Discord server. 47:29.160 --> 47:49.760 So if you're just watching this online in video, you're not sure how to get involved in DefCon in general or walk in our village if you want to do that, then the way to do it is with the Discord server. 47:50.780 --> 47:57.320 All right, so just let me get to our room so I can try to see. 47:57.840 --> 47:59.840 God, there's a lot of channels. 48:01.560 --> 48:06.600 So there's a lot of content, even though it's virtual this year. 48:07.040 --> 48:18.840 And probably the next thing we will do is take questions and answers because we've covered all of the components that go into building a badge. 48:19.580 --> 48:26.320 And that's what we wanted to focus on in this hour. 48:26.680 --> 48:29.200 I'm just scrolling, scrolling, scrolling. 48:29.200 --> 48:33.020 There's the crypto village, the ethics village, and we're coming up soon. 48:33.140 --> 48:35.260 Ham and radio village. 48:35.920 --> 48:37.100 What's wrong with these people? 48:37.100 --> 48:39.060 Why aren't they part of the inner village? 48:39.940 --> 48:42.160 Oh, here is a hardware hacking. 48:42.460 --> 48:43.500 ICS. 48:43.500 --> 48:44.660 My goodness. 48:44.660 --> 48:47.220 IOT lock bypass. 48:47.220 --> 48:48.820 Lock picking. 48:48.880 --> 48:49.640 Here we are. 48:49.640 --> 48:51.500 Okay, Monero village. 48:51.680 --> 48:52.640 All right. 48:52.640 --> 48:55.800 So I don't see any questions yet. 48:55.800 --> 48:58.780 I'm sure that you're thoroughly bored. 48:59.020 --> 49:09.500 But I also don't have much more to say about the components that make up these badges. 49:09.500 --> 49:16.300 So it's time to either close early or ask for questions. 49:17.020 --> 49:20.220 And if anybody would please... 49:22.000 --> 49:22.760 Right. 49:22.760 --> 49:27.140 If you have a question... I actually don't know how this works. 49:27.140 --> 49:32.120 I assume that a moderator will... How does this work? 49:32.160 --> 49:39.720 If you're not on Discord and you're on IRC or something, somebody translate, put it on Discord. 49:39.720 --> 49:44.320 Otherwise, we're going to finish a few minutes early. 49:45.180 --> 49:48.740 So let me see what we're doing here. 49:52.040 --> 49:57.360 Yeah, the general channel is no questions. 49:57.360 --> 49:59.720 Off topic channel. 50:00.460 --> 50:01.980 No questions. 50:01.980 --> 50:07.080 And the office channel for office hours, I see no questions at all. 50:07.900 --> 50:13.640 Okay, so we're going to finish early. 50:13.640 --> 50:16.500 It's the last chance to ask your question. 50:17.060 --> 50:19.880 And nothing there. 50:19.880 --> 50:30.780 So please come back for the next presentation, which I can just find it. 50:36.290 --> 50:40.390 By the way, you cannot download these slides. 50:40.390 --> 50:41.070 Okay? 50:41.070 --> 50:42.850 You can't download them. 50:42.930 --> 50:44.950 Sorry about that. 50:45.670 --> 50:47.290 Because they're paper. 50:47.290 --> 50:48.790 Do you get it? 50:48.950 --> 50:49.290 All right. 50:49.290 --> 50:50.490 These slides are paper. 50:50.490 --> 50:51.870 Don't download them. 50:51.870 --> 50:52.130 All right. 50:52.130 --> 50:59.230 So the next presentation is by some jerk. 50:59.790 --> 51:00.390 Oh, no. 51:00.390 --> 51:01.030 Wait a minute. 51:01.030 --> 51:01.910 No, that's me. 51:01.910 --> 51:03.490 I'm giving the next presentation. 51:03.490 --> 51:07.130 It's called getting started with the intervillage badge. 51:07.270 --> 51:12.190 So what we will do there is learn how to actually use one, how to do something. 51:14.230 --> 51:17.430 Yeah, it's something useful with them. 51:17.430 --> 51:18.170 Okay. 51:18.990 --> 51:24.570 And that's going to be the other three, two days after today.