To install fish shell on windows the options are:
- Cygwin
- WSL
- MSYS2
Since git bash is based on MSYS2 it seems a good fit to install fish. The problem is that git bash is a lightweight version of MSYS2 which does not include pacman
as a package management, used to install fish.
This OS thread has great suggestions on how to solve this problem including using the full MSYS2. But the best solution for me was this answer by Michael Chen which installs pacman
on git bash.