Yes Termux is great. It can even do SSH key authentication on a Yubikey with OKCagent, with key forwarding which other options e.g. Termbot can't do.

Unfortunately the restrictions in later Android versions make it more and more difficult for Fredrick to continue supporting it. I'm currently using the F-Droid version which targets an older Android version but eventually that will become impossible too because newer android versions will eventually drop the older APIs altogether.

In particular in later Android API versions it's no longer allowed for an APK to load binaries from other sources and execute them there. Which makes the apt repository impossible. So what should it do? Include all binaries in the APK? Or distributute each app inside termux as a separate APK? Neither option sounds very appealing.

Well that's a shame. Termux is fantastically useful and a great addition to the android's ecosystem, at least for us techies. It would be sad to see it go.