F-Droid

Don't you need to give Termux too many permissions (for obvious reasons and well justified sincd it's a terminal emulator)? That's the only thing keeping me away from Termux, I'm not very familiar with it and I don't feel comfortable going ahead onto an app like that since I'd use it exclusively for this purpose. Thanks for the suggestion though (I didn't know you could run vim/nano from there, interesting, by the way). For anyone reading this and don't think this way I do and want to give it a try, here are some Termux official webpages:

• Project's main webpage
• F-Droid app page
• GitHub Repository

Termux probably can run latex

Wow, I've never heard of it but it looks interestig thanks! For anyone reading this, here's some links:

• Typst's official webpage
• GitHub Repository

Apparently I also found someone made a mobile app editor for Typst, but it's in another app store called Accrescent (I don't know if it's safe? I will do some searches on it to get to know about) The project BeauTyXT official website, GitHub Repository (.apk available on Releases page)

TeX is a typesetting language. Instead of visually formatting your text, you enter your manuscript text intertwined with TeX commands in a plain text file. You then run TeX to produce formatted output, such as a PDF file. Thus, in contrast to standard word processors, your document is a separate file that does not pretend to be a representation of the final typeset output, and so can be easily edited and manipulated.

Source (tug.org)

More info on LaTeX

Thanks, from LaTeX website, they inform of OverLeaf (not FOSS) more like freemium web app? It works nicely though, Papeeria - also same as OverLeaf in terms of FOSS, and CoCalc which I'm very unfamiliar with and it's different from the first two but also not FOSS webapp. I wish there were apps because I don't even know if there are self-hosteable TeX live equivalent so I could use it without relying on an online service