bass works for things you're meant to source. If the script is not meant to be sourced, just run bash yourscript.sh . It basically runs the script in bash, dif

bass works for things you're meant to source. If the script is not meant to be sourced, just run bash yourscript.sh . It basically runs the script in bash, diffs the environment, and applies the environment changes to your outer fish shell. I use it for some internal tools, and previously used it for nvm though I moved from nvm to fnm now which has fish support.