If you want a service to run other programs (it is generally better to run on my own computer, but sometimes some cannot for some reason including not enough RA

If you want a service to run other programs (it is generally better to run on my own computer, but sometimes some cannot for some reason including not enough RAM or not enough speed or package conflicts or whatever), I would want the possibility to use by command-line (e.g. by nc or curl) rather than by the web browser. FOSS self-hostable like mentioned in other comments is good idea though. Also mention in other comments "beefier files heat my laptop up pretty bad"; that would be a reason to offer a service I suppose (especially to use with files that are public anyways), but still can be run using command-line is better than requiring the web browser, especially as they say, "why am I expected to be able to run Chrome..."?