Install Visual Studio Code (actually code-server) on Android

Install Termux, an Android terminal emulator that provides a Linux execution environment and various tools.
Update system packages in Termux:
```
$ pkg update -y
```
Install dependencies, including python, nodejs, and yarn:
```
$ pkg install -y python nodejs yarn git
```
Install code-server, an adaptation of Visual Studio Code that runs as a web app using the following command. The installation may take a while:
```
$ yarn global add code-server
```
Before starting code-server, we are going to fix an error caused by spdlog, which is a dependency of Visual Studio Code. First, change your working directory to ~/.config/yarn/global/node_modules/code-server/lib/vscode/node_modules/spdlog/:
```
$ cd ~/.config/yarn/global/node_modules/code-server/lib/vscode/node_modules/spdlog/
```
You will need a text editor for the next step. Here Vim is used for this task, but you are free to use whatever text editor you love:
```
$ pkg install vim
```
Open binding.gyp and enter edit mode. You can do this by pressing i once you open the file using Vim:
```
$ vim binding.gyp
```

Add "libraries": [ "-latomic" ] below "target_name": "spdlog",. This helps spdlog compile on Android.

"targets": [{
        "target_name": "spdlog",
+       "libraries": [ "-latomic" ],
        "sources": [
                "src/main.cc",
                "src/logger.cc"
        ],

Save the file and quit text editor. You can do this by pressing ESC and then wq in Vim:
Recompile spdlog using the following command:
```
$ npm install
```
(Optional) To see if spdlog works, run:
```
$ npm test
```

To fix the file search function of code-server, install ripgrep via pkg and link it to the correct place:

$ pkg install ripgrep -y
$ cd ~/.config/yarn/global/node_modules/code-server/lib/vscode/node_modules/vscode-ripgrep/bin
$ ln -s $(which rg) .

Finally, change the working directory back to home and start code-server with the following command:
```
$ cd ~
$ code-server --auth none --disable-telemetry
```
Now, you can open your browser and visit code-server at http://localhost:8080.
(Bonus) If you wish to visit this code-server from another device in the same local network, you can expose the HTTP service to all network interfaces by starting code-server with --bind-addr:
```
$ code-server --bind-addr 0.0.0.0:8080 --disable-telemetry
```
You can find the password under ~/.config/code-server/config.yaml:
```
$ cat ~/.config/code-server/config.yaml
```
You may also need to enable HTTPS to enable clipboard and others features of Visual Studio Code in browsers. To do this, install openssl-tool and let code-server generate a certificate on startup:
```
$ pkg install openssl-tool
$ code-server --bind-addr 0.0.0.0:8080 --cert --disable-telemetry
```
You can get the public IP address of your device using the command below in Termux:
```
$ ifconfig
```