This reminds me of Unison's "codebase manager": https://www.unisonweb.org/docs/tour#-the-big-technical-idea https://www.unisonweb.org/docs/tour#-the-big-technic

This reminds me of Unison's "codebase manager": https://www.unisonweb.org/docs/tour#-the-big-technical-idea https://www.unisonweb.org/docs/tour#-the-big-technical-idea It's not exactly a repl, but it shares similarities to the idea of interacting with your source code itself via software, not just by typing bytes into a file.