Mobian is Debian designed for phones. PostmarketOS is another project doing the same thing, but with an alpine Linux base.

It’s also pretty awesome that nowadays 4, 5, or even 10 year old computers are still totally viable to use for most use-cases, which would’ve been unheard of back in the 80’s and 90’s when hardware had such giant leaps in speed every few years. I’m loving that we finally have some longevity with hardware, and that Linux is able to actually extract that longevity from the hardware in spite of Microsoft’s efforts to cut it short.

Geany is a great, lightweight FOSS editor that totally respects your privacy, and supports all if the languages you mentioned, plus many more.