WEBVTT 00:00.240 --> 00:02.920 Well, if you're a PC person, then you've come to the right place. 00:02.920 --> 00:03.800 This is for you. 00:03.800 --> 00:06.120 If you're not a PC person, then get out. 00:06.120 --> 00:07.240 You're not welcome here. 00:07.680 --> 00:09.560 All right, with that out of the way. 00:10.040 --> 00:10.560 Hello. 00:10.920 --> 00:12.000 This is the video. 00:12.000 --> 00:17.680 When we actually get to set up your environment and there are going to be five steps to doing this. 00:17.680 --> 00:19.480 The sixth one will be somewhat optional. 00:19.480 --> 00:24.480 There will be a sixth step, but the five main steps we are going to do, and they are going to be covered 00:24.480 --> 00:26.400 in my repo very clearly. 00:26.400 --> 00:28.040 And let's start by going there. 00:28.080 --> 00:32.640 We're going to go to the repo that is linked in the course materials. 00:32.680 --> 00:33.760 It's at GitHub. 00:36.000 --> 00:36.640 And here it is. 00:36.640 --> 00:41.320 And when you go there you see the different directories, the different folder structure that we have. 00:41.440 --> 00:46.000 And if you scroll down you get what's known as the readme, the set of information that comes with the 00:46.000 --> 00:46.360 course. 00:46.360 --> 00:49.920 And I ask you, I plead with you to read the readme. 00:50.200 --> 00:51.720 I put a lot of care into the readme. 00:51.720 --> 00:57.960 It's got lots of great stuff in there, and so do take a look through it and it will set you up to be 00:57.960 --> 01:01.520 successful in addition to another link to my LinkedIn. 01:01.560 --> 01:03.760 I'm starting to sound a bit desperate about this. 01:03.880 --> 01:09.320 There's also lots of useful things, and most importantly, there's links to the setup instructions, 01:09.320 --> 01:13.040 the windows setup instructions, the Mac and the Linux ones. 01:13.160 --> 01:17.320 And I'm not going to take you through them right now because this will be a living, breathing document 01:17.320 --> 01:20.000 that I will keep it updated as people hit problems. 01:20.000 --> 01:24.560 But you should go through that and have that side by side, if anything, that's going to be better 01:24.560 --> 01:25.400 than this video. 01:25.440 --> 01:27.840 See this video as being bringing it to life. 01:27.840 --> 01:30.360 But the instructions will be bulletproof. 01:30.560 --> 01:36.160 So it's time for step one and just before starting step one, I do want to draw your attention to a 01:36.160 --> 01:39.120 section at the top of the setup PC guide. 01:39.240 --> 01:45.440 That's called gotchas, and it has a few of the common traps that can happen when setting things up 01:45.440 --> 01:46.280 for PCs. 01:46.480 --> 01:53.400 One of them is an insidious problem, with windows sometimes being set up to not allow names of files 01:53.400 --> 01:55.760 longer than 260 characters. 01:55.960 --> 02:01.840 And if that is set on your system, then you need to to unset it so you are allowed longer filenames. 02:01.840 --> 02:04.880 And that's something which there are instructions for how to do that. 02:05.200 --> 02:10.120 Another common trap is around antivirus software that can interfere with the installation. 02:10.120 --> 02:11.720 So there's some steps there as well. 02:11.720 --> 02:15.920 So please do look at those gotchas because they will set you on a good path. 02:16.120 --> 02:16.800 All right. 02:16.840 --> 02:21.040 Step one is about cloning the repo using git. 02:21.200 --> 02:28.160 And to get started, if you go to the start menu and you then type PowerShell, you should be able to 02:28.200 --> 02:29.600 open up a PowerShell. 02:29.600 --> 02:30.520 One of these things. 02:30.520 --> 02:32.240 Let me get rid of the other one that's running here. 02:32.720 --> 02:34.840 So here is a PowerShell. 02:35.200 --> 02:38.680 And this is like like for for running commands in the command line. 02:38.680 --> 02:45.600 If you're new to this, one of the guides in the guide folder in the repo contains within it. 02:45.920 --> 02:51.760 So in this guides folder there is a guide for using the command prompt that will put you in good shape. 02:51.760 --> 02:54.920 But I'm imagining at this point you are familiar. 02:54.920 --> 02:58.560 So you know that that there could be a projects directory. 02:58.560 --> 03:02.960 Most people have created a projects directory in which you should go into it. 03:03.000 --> 03:08.880 If you don't already have a projects directory, then you should create one with mkdir projects within 03:08.880 --> 03:09.960 your home directory. 03:09.960 --> 03:14.880 So you will then have, like I do, a projects directory within your home directory. 03:14.880 --> 03:21.080 And if I look at the contents of it, it has my LM engineering folder from my other course, and it 03:21.080 --> 03:22.280 has some test folder. 03:22.280 --> 03:26.120 And it is this folder that we're going to clone our new repo. 03:26.360 --> 03:30.880 First we need to check that we have git installed git for code management. 03:30.880 --> 03:34.200 And you can do that by typing git minus minus version. 03:34.520 --> 03:37.320 And we'll see that I do indeed have git installed. 03:37.480 --> 03:43.840 If you don't have git installed and that has an error message, then you can go to Git's website and 03:43.840 --> 03:49.280 there's a link in the setup instructions and go to downloads and to windows. 03:49.480 --> 03:53.200 And you can click here to download the latest version for windows. 03:53.200 --> 03:58.040 And the installation instructions should be crystal clear and make sure that you have that in there. 03:58.040 --> 04:00.360 You might need to open up a fresh PowerShell. 04:00.400 --> 04:04.240 Always worth knowing that you might need to do that and sometimes you need to restart your computer. 04:04.280 --> 04:06.480 Super annoying, but hopefully not. 04:06.520 --> 04:11.040 You should be able to type git minus minus version and see git in there. 04:11.400 --> 04:16.320 Okay, so the next thing to do is to actually clone the repo. 04:16.920 --> 04:17.320 Okay. 04:17.360 --> 04:19.720 So we go to the repo itself. 04:19.720 --> 04:20.560 Here we have it. 04:20.800 --> 04:29.200 And uh the first thing we do is we go to this green button on the top right of the repo, as I'm looking 04:29.200 --> 04:32.640 at it here in a browser, and you click this code button. 04:32.840 --> 04:38.160 You select Https and you'll see the web address of this repo. 04:38.280 --> 04:41.360 And you press the copy URL to the clipboard button. 04:41.360 --> 04:41.920 And there we go. 04:41.960 --> 04:43.080 I have copied it. 04:43.400 --> 04:47.000 And now you come here to the PowerShell. 04:47.200 --> 04:50.160 Now again I'm in my projects directory. 04:50.160 --> 04:54.280 So you're in the your home directory then your project subdirectory. 04:54.280 --> 04:57.560 If your C drive is quite full then you might want to do this on your D drive. 04:57.560 --> 04:59.840 Just make sure you're within a project's directory. 04:59.880 --> 05:01.120 A good place for it to be. 05:01.160 --> 05:10.160 And you simply type git clone and then the paste in there the web address of the GitHub repo. 05:10.480 --> 05:16.120 And when we press enter that runs it does its thing and it's done. 05:16.280 --> 05:20.200 And if I look at that directory you'll now see that agents is there. 05:20.360 --> 05:24.320 I can now go into that directory agents and look at it. 05:24.320 --> 05:27.840 And here are all of the directories within the repo. 05:28.120 --> 05:32.880 And this folder that we're in right now which is projects agents. 05:33.040 --> 05:36.960 This is what sometimes known as the project root directory. 05:36.960 --> 05:38.400 It's what people call this. 05:38.440 --> 05:40.280 And it's a very common place to go. 05:40.520 --> 05:41.960 And this is where we are. 05:42.200 --> 05:47.040 And that means that we have completed step one of the five step process. 05:47.520 --> 05:48.120 Okay. 05:48.160 --> 05:57.760 So we go right away to cursor to look at the cursor IDE, a fabulous platform, and download it and 05:57.760 --> 06:02.400 install it if you don't already have it, and you can just press the download for windows button. 06:02.920 --> 06:08.160 It will download the executable and you can then run it and you'll get this setup screen. 06:08.200 --> 06:09.640 A familiar kind of setup. 06:09.840 --> 06:15.520 Accept the agreement, choose where you want it to install it, and I choose the C drive, but you could 06:15.520 --> 06:18.080 put it on the D drive if you're running out of space. 06:18.400 --> 06:27.920 And then next and then we will create a desktop icon and add it to Windows Explorer. 06:28.560 --> 06:34.160 And note that it will make changes to path, which means that we will need to bring up a new command 06:34.160 --> 06:35.800 prompt for this to take effect. 06:36.040 --> 06:37.560 And then we will install that. 06:38.160 --> 06:45.000 So it will now install cursor on my PC so that we can use this platform. 06:45.880 --> 06:49.160 And I will jump forwards and see you in a second. 06:50.000 --> 06:51.440 And cursor has now installed. 06:51.440 --> 06:52.760 And so I can press finish. 06:52.960 --> 06:57.400 And it should now be installed and launching on my PC. 06:58.080 --> 06:58.840 There we go. 06:59.680 --> 07:00.680 It's right here. 07:00.680 --> 07:01.080 The, uh. 07:01.200 --> 07:02.120 Oh, no, it is starting. 07:02.120 --> 07:02.840 It is starting. 07:03.360 --> 07:04.080 Here it comes. 07:04.080 --> 07:05.320 It just took a moment. 07:05.600 --> 07:08.880 And we can just keep with all of these basics. 07:09.160 --> 07:17.200 And I'm going to select to use the word cursor if I want to run it from the command line and say yes 07:17.680 --> 07:18.120 okay. 07:18.640 --> 07:19.800 And then continue. 07:20.640 --> 07:25.760 And I'm going to have it in privacy mode, I'm not going to, to uh, be logging what I do. 07:26.200 --> 07:27.640 And you are all set. 07:28.080 --> 07:34.400 So now you can sign up for a cursor account, which is free, and you just press that sign up button 07:34.400 --> 07:36.160 and follow the process. 07:36.480 --> 07:43.080 And uh, then, uh, once you're finished with that, I will see you back here in a second to actually 07:43.080 --> 07:43.920 use cursor. 07:44.520 --> 07:46.520 And so here we are in cursor. 07:46.520 --> 07:49.840 It started I've signed in, I've actually got a pro trial. 07:50.080 --> 07:53.160 And we're looking at the first screen we've got here. 07:53.160 --> 07:55.160 And I can press Open Project. 07:55.440 --> 08:00.880 And what I can now do is navigate I'm going to I'm going to actually go this PC and then to my C drive 08:01.480 --> 08:07.600 and then to users and add and then projects, which is where my projects are. 08:08.040 --> 08:10.400 And here is agents. 08:10.560 --> 08:14.680 And this you'll recognize as the directories that we cloned from our repo. 08:14.960 --> 08:20.760 And what I can do now is just press this select folder button which is saying I want this agents folder 08:20.760 --> 08:24.200 to be my project root folder. 08:24.200 --> 08:25.440 And it opens up. 08:25.440 --> 08:28.400 This is your first look inside cursor. 08:28.400 --> 08:31.000 We've got our directories down here. 08:31.000 --> 08:35.200 You've got like a welcome screen up here I'm going to X out the welcome screen. 08:35.200 --> 08:41.120 And now here we have something called the explorer on the left which has all of our directories. 08:41.120 --> 08:45.480 We've got a chat ability to chat with an LM on the right. 08:45.520 --> 08:47.400 I'm also just going to close that down. 08:47.440 --> 08:50.840 And what we're looking at here is the code. 08:50.880 --> 08:57.440 And in fact I can this navigator on the left is showing you a different directory for each of the six 08:57.560 --> 09:01.240 weeks of the course from foundations through to MCP. 09:01.440 --> 09:07.400 And if we open this swizzle here, you'll see all of the contents of the first week foundations where 09:07.400 --> 09:08.800 we are right now. 09:09.160 --> 09:09.520 Okay. 09:09.520 --> 09:12.200 We're racing ahead to part three of the setup. 09:12.240 --> 09:18.600 Part three of course is time for UV, which I'm so excited to to show you. 09:18.880 --> 09:23.960 So we start by just looking for, uh, UV package manager. 09:24.200 --> 09:28.600 You will, uh, find it's also linked in the setup instructions. 09:28.640 --> 09:31.080 Astral is the name of the company that makes UV. 09:31.320 --> 09:32.360 Here it is. 09:32.560 --> 09:36.920 And it is an extremely fast package manager as it tells you. 09:37.360 --> 09:43.280 So to install for windows, you simply run this in a PowerShell. 09:43.480 --> 09:48.760 And so I've pressed on windows I'm now going to press this copy button to copy that in. 09:48.800 --> 09:54.920 And I'm now going to go to a PowerShell which we will do right here PowerShell. 09:55.280 --> 09:58.840 And I'm going to run that command. 09:59.240 --> 10:00.800 So here we go. 10:01.160 --> 10:02.080 We'll let it do its thing. 10:02.120 --> 10:04.360 It's now installing UV. 10:05.120 --> 10:08.160 And that appears to have already happened. 10:08.480 --> 10:14.840 And it's telling you you can either restart your shell to to take this into the path or you can run 10:14.840 --> 10:15.560 those commands. 10:15.600 --> 10:17.120 We're going to restart our shell. 10:17.160 --> 10:19.440 If we type exit to get rid of that shell. 10:19.440 --> 10:24.040 And we start a new shell and you must remember to do this, otherwise it won't work. 10:24.280 --> 10:26.120 So PowerShell again. 10:26.560 --> 10:30.040 And now we should we should have access to UV. 10:30.320 --> 10:33.000 And so we can type UV minus minus version. 10:33.680 --> 10:36.920 And there we have UV installed on the machine. 10:37.520 --> 10:39.840 Now I'm going to show you this next part within cursor. 10:39.840 --> 10:44.800 Here is cursor I actually quit cursor and reopened it again for the same reason that we did that with 10:44.800 --> 10:50.400 a PowerShell to to reset the path variables and within cursor, I'm going to go to the view menu and 10:50.400 --> 10:51.560 choose terminal. 10:51.560 --> 10:58.310 It's also control and the Backtick to bring up a new PowerShell within then cursor, which is a useful 10:58.310 --> 10:58.710 thing to do. 10:58.710 --> 11:02.630 And that's how we'll do it, mostly on this course and within here. 11:02.630 --> 11:08.230 If I do a dir you'll see, or an LHS, you'll see that the contents of that directory, I'm now just 11:08.230 --> 11:15.030 simply going to do the command UV sync, which is my way of telling UV that I want to build an environment 11:15.030 --> 11:18.190 consistent with what I have in this directory. 11:18.390 --> 11:19.670 And I do that. 11:19.670 --> 11:26.190 And what we're seeing now is it's building the environment, and it's actually beginning by installing 11:26.270 --> 11:33.430 Python, a dedicated version of Python 3.1, which is the version for this project, and it's now installing 11:33.430 --> 11:34.350 the packages. 11:34.510 --> 11:40.630 Now, people who are familiar with Anaconda know that this process of building a full specked, isolated 11:40.630 --> 11:45.790 environment with the right version of Python is something that can take up to an hour, and sometimes 11:45.830 --> 11:51.630 on some systems, it was taking an hour and a half to build this environment on their computers. 11:51.910 --> 11:53.710 What you'll find is that it's a different story. 11:53.710 --> 11:59.590 With UV, it's running remarkably quickly, and I'm hoping it's going to finish by the time I finish 11:59.590 --> 12:00.590 this sentence. 12:00.590 --> 12:06.510 But if not, then I may put you on pause and come right back again, because it literally takes a minute 12:06.510 --> 12:07.790 or two and it will be done. 12:07.790 --> 12:09.110 So I'll see you in a minute. 12:09.390 --> 12:13.390 Okay, so it did take about another three minutes, but I didn't lie. 12:13.430 --> 12:13.950 It's quick. 12:13.950 --> 12:15.950 It's very quick and it's very impressive. 12:15.950 --> 12:18.110 And the big news is that that's it. 12:18.110 --> 12:24.030 There isn't any more of the kind of configuration management part those packages have been installed. 12:24.110 --> 12:29.470 If I look in this directory, you'll see that there is in fact going to be a new folder. 12:29.990 --> 12:30.590 Venv. 12:30.630 --> 12:35.110 It's created a virtual environment for people that know about Python virtual environments. 12:35.470 --> 12:40.190 It's built one and that now exists in this folder, and that's all there is to it. 12:40.310 --> 12:45.390 And going forwards, if we want to run a Python script, whereas you might normally type like Python 12:45.390 --> 12:50.990 and then the name of a Python script you now would type, you've run and then the name of the script 12:50.990 --> 12:53.910 and it will automatically run it in that environment. 12:53.910 --> 12:55.630 And everything else is the same. 12:55.630 --> 12:55.750 The. 12:55.790 --> 12:57.310 The environment is built. 12:57.310 --> 12:58.670 It's as simple as that. 12:58.710 --> 13:02.710 We're pretty much good to go and we're now in the end game. 13:02.710 --> 13:06.870 We're at step four of the instructions and it's smooth sailing from here. 13:06.950 --> 13:11.470 The next step is to set up a key with OpenAI so that you can use OpenAI directly. 13:11.470 --> 13:17.230 If you already have a key, you can just skip this step if you don't want to be spending money on OpenAI. 13:17.390 --> 13:18.470 There are alternatives. 13:18.510 --> 13:25.230 As I say, you will find them in the setup instructions and the readme and in the linked in the guides. 13:25.230 --> 13:27.110 So please do follow those instructions. 13:27.110 --> 13:33.110 But I do assume that most people are okay to spend a few dollars and is quite cheap on using OpenAI, 13:33.150 --> 13:37.790 because the power of these frontier models is going to allow us to do great things. 13:37.830 --> 13:45.430 And of course, you can use Deep Seek or Google's Gemini or Grok as a straight replacement for any of 13:45.430 --> 13:45.950 these. 13:46.190 --> 13:49.310 Okay, so I go to a browser and I go to platform. 13:51.470 --> 13:55.470 Which is where you get into the sort of API side of OpenAI. 13:55.710 --> 13:58.150 And the first thing that you may need to do is sign up. 13:58.150 --> 14:02.150 I have already got an account so I can just log in, but you may need to come in and sign up. 14:02.150 --> 14:05.910 If I log in, I can come in with my Google credentials. 14:06.270 --> 14:10.790 And here I am logged in as me to the OpenAI developer platform. 14:11.230 --> 14:13.430 Now, there are now two things that you need to do. 14:13.470 --> 14:16.990 One of them is about setting up billing, and one of them is getting an API key. 14:16.990 --> 14:18.230 And we'll do them both now. 14:18.510 --> 14:18.790 Okay. 14:18.830 --> 14:22.590 And so in order to set up your billing, you go to the settings menu up here. 14:22.830 --> 14:25.870 And then you go down to billing right here. 14:26.190 --> 14:30.950 And this is where you choose to put in a credit balance. 14:30.950 --> 14:32.630 You can see I've got quite a large credit balance. 14:32.630 --> 14:37.590 I seem to spend quite a lot of money on different projects with OpenAI, but this course will only cost 14:37.630 --> 14:39.070 you a few dollars. 14:39.070 --> 14:45.030 But the way that it works is that you do need to put in an amount up front, and $5 as of today is their 14:45.030 --> 14:45.750 minimum. 14:45.750 --> 14:48.630 So you'll need to put in that $5 and then you spend against it. 14:48.630 --> 14:53.030 For people internationally, I know that sometimes OpenAI can be a bore about charging because they 14:53.030 --> 14:58.230 charge in dollars and some credit cards don't accept an international charge like that. 14:58.230 --> 15:01.310 So there is some some nonsense to get around with that. 15:01.310 --> 15:04.110 And as I say, there's alternatives like deep seek if you want it. 15:04.150 --> 15:08.790 Some students use grok with a Q, which there's also a great option. 15:09.190 --> 15:13.470 And you can also use something called open router that's quite popular, particularly with international 15:13.750 --> 15:18.470 people, students, because you can set up an open router account and it will route through to the different 15:18.470 --> 15:19.030 models. 15:19.030 --> 15:21.030 So these are all different approaches for you. 15:21.030 --> 15:22.910 And they work almost exactly the same way. 15:22.950 --> 15:28.510 There'll be some sort of billing page like this where you get to choose to top up and you press add 15:28.510 --> 15:33.350 to credit balance to top up with a credit card, and you put in the minimum $5. 15:33.350 --> 15:35.830 We won't need any more than that for sure. 15:36.470 --> 15:36.910 Okay. 15:36.950 --> 15:42.190 And so once you've done that, you then have to go to the API keys section. 15:42.190 --> 15:44.030 And this is super important. 15:44.030 --> 15:46.590 And this is where you get to set keys. 15:46.830 --> 15:52.910 That will be the how you will access this API from your computer. 15:52.910 --> 15:56.550 And the way that you'll do that is you'll press create new secret key. 15:56.870 --> 15:58.950 You'll put in the any name you want. 15:58.950 --> 16:00.390 You can call it just to remember it. 16:00.390 --> 16:01.070 In the future. 16:01.470 --> 16:03.750 Make sure that you select project. 16:03.750 --> 16:05.870 You have default project so it's for everything. 16:05.910 --> 16:10.310 Have all permissions and then press Create Secret Key and you will get a new key. 16:10.310 --> 16:12.470 And you can copy it into your clipboard. 16:12.470 --> 16:14.510 And you have to do that to make sure that you preserve it. 16:14.510 --> 16:16.710 Because we're about to make use of that API key. 16:16.870 --> 16:19.830 Now here's a pro tip to be really careful about. 16:20.070 --> 16:25.310 When you copy that key into the clipboard, you might be tempted to paste it into another application 16:25.310 --> 16:28.910 like a notepad that you will then copy and paste it somewhere else. 16:28.910 --> 16:30.870 But there's a there's a trap there. 16:31.070 --> 16:35.830 Sometimes these kinds of word processors, when you paste in the key, they'll they'll mess around with 16:35.830 --> 16:36.430 it in some way. 16:36.430 --> 16:41.470 They'll replace hyphens with long hyphens because they look better in text, and they may replace some 16:41.470 --> 16:45.190 characters with international characters that are right for your locale. 16:45.350 --> 16:49.590 And if they do that, your key won't work, and it's going to take you ages to figure out what's happened. 16:49.590 --> 16:50.550 So be careful of that. 16:50.550 --> 16:51.110 Don't do that. 16:51.110 --> 16:56.390 I suggest copying it to the clipboard and then immediately doing the next step we're going to do, which 16:56.390 --> 16:58.550 is actually using it in our project. 16:58.550 --> 17:03.470 So keep that trap in mind if you do want to paste it somewhere to keep it for your records, then be 17:03.470 --> 17:08.670 careful to paste it into a kind of tool that's not going to mess around with the API key. 17:09.110 --> 17:10.510 All right, I hope that makes sense. 17:10.510 --> 17:12.710 I hope you've now created your API key. 17:12.710 --> 17:16.990 If you don't have one already and you've got it and you've got it nice and safe, and you've recorded 17:16.990 --> 17:21.270 it somewhere where it's not messing with the characters, and we're ready to put this to good use. 17:22.110 --> 17:22.870 And this is it. 17:22.910 --> 17:25.510 We've reached the final step, the final step of setting up. 17:25.510 --> 17:27.870 Thank goodness we're back in cursor. 17:27.870 --> 17:30.830 And I've actually I pressed X on the PowerShell that was here. 17:30.830 --> 17:34.110 So we've got a nice clean screen here on the left. 17:34.110 --> 17:39.550 This is the explorer I've collapsed all of these so that you just see the top level explorer. 17:39.790 --> 17:44.990 And what I'm now going to do is right click here and say new file. 17:44.990 --> 17:48.070 And I've now got a new file I'm creating at the top level. 17:48.110 --> 17:49.750 Make sure that it's at that top level. 17:49.750 --> 17:51.990 And I'm going to call it something very specific. 17:51.990 --> 17:55.030 And you have to call this file exactly the same thing. 17:55.070 --> 17:58.430 And that thing begins with a dot, a period. 17:58.750 --> 18:01.790 A full stop, as we say in England. 18:01.790 --> 18:04.910 And then the letters E and N and V. 18:05.070 --> 18:10.110 So it's called dot EMV, and it has to be called exactly that for a very particular reason that we'll 18:10.110 --> 18:10.830 get to later. 18:10.950 --> 18:15.990 But as long as you've called it Dot and nothing else, then you're in great shape. 18:16.190 --> 18:18.310 So that is the name of this file. 18:18.670 --> 18:25.510 A dot EMV file is a common way that people put in environment variables that they want to set just for 18:25.510 --> 18:30.070 the purpose of this project, and they will be environment variables that will contain what we sometimes 18:30.070 --> 18:33.550 call secrets or things that we don't want to to be public. 18:33.550 --> 18:35.750 We don't want it to be checked into source code. 18:35.750 --> 18:41.390 We want it to be something that is just for us, kept private, that we will use, and we can just put 18:41.390 --> 18:47.350 things in this file of the form of like a key name equals and a value, and that will become an environment 18:47.350 --> 18:48.790 variable, as you will see. 18:49.110 --> 18:52.470 And in particular, there's one key that we really care about. 18:52.550 --> 18:54.510 And you have to do this exactly right. 18:54.510 --> 18:59.150 If you make a typo in this, then it's not going to work and it's going to be really frustrating. 18:59.150 --> 19:01.870 So try to be really careful with this. 19:01.870 --> 19:09.110 I'm going to type open and you can see that already the cursor is already it knows what I want to do. 19:09.150 --> 19:10.510 See how it's filling it in for me. 19:10.510 --> 19:13.790 I could just press Tab to do what it wants, but I'm not going to press tab. 19:13.990 --> 19:17.750 You will see because it's got a dummy key in there, not the key that we want. 19:18.030 --> 19:23.670 Open AI underscore API underscore key equals. 19:24.590 --> 19:29.630 And you can see it's prompting me there ESC dash dash and a number. 19:29.950 --> 19:34.310 Now what I want to put in here is something that will indeed start ESC Pro. 19:34.710 --> 19:35.550 And it will have a number. 19:35.550 --> 19:36.710 But it's going to be a long number. 19:36.710 --> 19:41.550 And it's going to be the thing that I just copied into my clipboard from the previous screen from open 19:41.550 --> 19:41.830 AI. 19:42.150 --> 19:46.230 You need to now paste that key right here and it's got to look just right. 19:46.230 --> 19:51.670 It's got to start ESC and then be followed by that that long long number and letters. 19:51.670 --> 19:54.470 And it's got to have those hyphens in them just as they are. 19:54.670 --> 19:58.670 And this is of the people that struggle with environment setup. 19:58.790 --> 20:01.790 Most of the problems end up just being this one tiny step. 20:01.790 --> 20:02.830 So please get it right. 20:03.110 --> 20:07.630 Uh, so hopefully you've done that and you've put that in there and it's got a key in there. 20:07.670 --> 20:12.830 Now, if you're using other platforms like Deep Seek, then this is exactly what you will do. 20:12.830 --> 20:15.910 The same thing you'll just put in here deep seek and it will. 20:15.950 --> 20:16.350 There we go. 20:16.390 --> 20:17.390 It fills it in for me. 20:17.430 --> 20:19.670 Deep seek API key equals. 20:19.990 --> 20:21.230 And you might have something else. 20:21.230 --> 20:26.270 You might be using grok the inference platform or open router or any of the others. 20:26.270 --> 20:32.110 Any keys that you've got, you simply put them in here like that and we will use them later. 20:32.110 --> 20:38.230 So with any luck, you've put in OpenAI API key equals and it's got your real key in there, which means 20:38.230 --> 20:39.910 that the setup is complete. 20:39.910 --> 20:41.590 Many congratulations. 20:41.590 --> 20:46.390 That's the painful part over as long as it all works and we'll find out, please skip the next video, 20:46.390 --> 20:51.630 which is going to be for the Mac people, the next lecture, and then we will reconvene after that. 20:52.030 --> 20:53.950 And I'm so excited to get started.