After a mere entire day, I have successfully gotten a whole Lisp development environment installed on windows. So, let's review:
Install scoop to install other systems
Install roswell through scoop
! roswell fails to install, because it tries to install msys2... using an out of date, nonexistent package.
Install msys2 through scoop, then put a symlink in roswell's directory. Modify roswell msys2 install script to move along to the next step of installing the packages it wants in msys2
We now have roswell functional!
Install sbcl through roswell
!Roswell does not export a way to run sbcl to the PATH. You have to use ros run
Attempt to install Alive (average lisp vscode environment)
!usocket loaded through quicklisp is an old version, not the latest, for some reason
Roswell can install the package from GitHub however, and be perfectly functional
!The Alive LSP runs using the sbcl command, which is not the roswell one.
Change command to use "ros", "run" instead
Now Alive is working! However, the continuous compilation means that I can't just quickload packages and use them like in the repl, and sending the code to the repl to use has different requirements, seemingly, than the compiler.
Righty-o, I can learn how to use packages properly, and now, finally, I have finished Advent of Code day 0.
At least day 1 was a nice relaxing break.