There are no “real” alternative OS available for apple devices. You can get some IDE “lite” apps like Visual Code, Python Editor, etc. but these a meant as companions to a PC IDE not meant for compiling, linking, testing, etc. You might be able to trade the old iPad for an old laptop you can put a flavor of Linux on.

archive.ph and its mirrors like archive.today, etc. are blocked by many ISP’s DNS systems.

paywall downvote

Nice try, scammer.

Nice.