> Many popular tools are much more complex to install
I'm curious which dev tools you're using aren't installable with standard mise backends. 99% of dev tools I use don't require a plugin.
> (more painful than, say, an asdf plugin)
You can still use asdf plugins, I could use mise to install an asdf plugin right now with one line `mise use asdf:raimon49/asdf-hurl`. The mise registry is just a convenient list of aliases, even if it doesn't accept new asdf plugins, you don't need it to.
As Larry Wall said "make easy things easy and hard things possible"