Use Termux, you need:

• Android Tablet/Smartphone.
• Bluetooth keyboard.
• Cheap stand 4 device.

That’s my setup to play tabletop rpg (DND5E) for a couple of years, all CLI using any text editor you like with markdown. I use: tmux, vis.

In your case: SC-IM, visidata, any text editor.

With Termux you can use packages from repo or from other distros with proot-distro, like: Alpine, Avoid, Debian, Arch, Fedora, Ubuntu.

• ChaiNNer: is very flexible and can do all of that. Node based.
• Upscayl: do only upscales with less models, but has simpler UI, very fast in AMD GPU (because NCNN).

• I haven’t tried automatic1111 or ComfyUI yet.
• All of them work offline withou limits and are more flexible than online alternatives.

GIMP has:

• OpenVINO.
• stable-gimpfusion
• gimp-stable-boy

I also like this in Linux, but isn’t on Android or Termux.

Also in termux:

• fclones
• rdfind
• go-findimagedupes