Not sure if YouTube links are allowed here, but if you just search for automatic 1111 install tutorials, Sebastian Kamph's channel is excellent and pretty much everything you'll need to know is on there!

Keep an eye for his updated videos though, as you can imagine the tech moves so quickly that some of his more popular videos have been remade and updated!

Easiest GitHub install I have ever done - works well on both Linux and windows per my own testing. Go onto the Automatic1111 stable-diffusion-webui github and find the git clone link, and then, from a command shell, use “cd” to get into your directory of choice and then do a “git clone ”. After that, go into said folder and literally just run the webui.bat/.sh file (might be called webui or might be called setup, can’t remember). That’s it - it should install all of the packages and python stuff and everything for you, and from there, honestly just fuck around with it for a while. On Linux, I had to install a few extra things/screw around a bit to get it working fully, but it wasn’t too tough. I highly recommend also installing the “dynamic prompts” extension and playing around with wildcards and such. Civitai has some great models and LoRAs you can play around with, too - Dreamshaper is a great one. If you’ve not got a 4000-series GPU, I would suggest editing the webui-user.bat/sh file and adding “—medvram” or “—lowvram” to help you get higher res images at the cost of a little bit of speed. Let me know if you’ve got any more questions! If nothing else, it’s honestly just a lot of fun to use.