If you only want to use the Stable Diffusion UI, you've downloaded the wrong file. In that case, please download and follow the instructions at https://github.com/cmdr2/stable-diffusion-ui#installation
This is in-flux, but one way to get a development environment running for editing the UI of this project is:
(swap `.sh` or `.bat` in instructions depending on your environment, and be sure to adjust any paths to match where you're working)
1) `git clone` the repository, e.g. to `/projects/stable-diffusion-ui-repo`
2) Download the pre-built end user archive from the link on github, and extract it, e.g. to `/projects/stable-diffusion-ui-archive`
3) `cd /projects/stable-diffusion-ui-archive` and run the script to set up and start the project, e.g. `start.sh`
4) Check you can view and generate images on `localhost:9000`
5) Close the server, and edit `/projects/stable-diffusion-ui-archive/scripts/on_env_start.sh`
6) Comment out the line near the bottom that copies the `files/ui` folder, e.g. `cp -Rf sd-ui-files/ui ui` for `.sh` or `@xcopy sd-ui-files\ui ui /s /i /Y` for `.bat`
7) Delete the current `ui` folder at `/projects/stable-diffusion-ui-archive/ui`
8) Now make a symlink between the repository clone (where you will be making changes) and this archive (where you will be running stable diffusion):
Build the Windows installer using Windows, and the Linux installer using Linux. Don't mix the two, and don't use WSL. An Ubuntu VM is fine for building the Linux installer on a Windows host.
3. Open the Anaconda Prompt. Do not use WSL if you're building for Windows.
4. Run `build.bat` or `./build.sh` depending on whether you're in Windows or Linux.
5. Compress the `stable-diffusion-ui` folder created inside the `dist` folder. Make a `zip` for Windows, and `tar.xz` for Linux (smaller files, and Linux users already have tar).
6. Make a new GitHub release and upload the Windows and Linux installer builds.