The main reason to use `curl | bash` is because it's installed almost everywhere...

The main reason to use `curl | bash` is because it's installed almost everywhere. Everything else can be bootstrapped from that.

If there was a standard `curlbash <URL> <SHA256>` program that was installed everywhere it would allow to work around all of these issues.

"curl > file ; [...] ; bash file" is also installed in all the same places.