I gave it a spin. First it complained about aspell dictionaries, then I tried installing a package in an effort to improve the prompt from simply saying "murex":
murex » murex-package install https://github.com/orefalo/murex-module-starship
\* Getting package from 'https://github.com/orefalo/murex-module-starship'....
Error in `murex-package` (0,1): protocol handler for HTTPS has not yet been written. Please use git in the mean time (you can do this by specifying a git extension in the uri)
.murex_modules » murex-package install https://github.com/orefalo/murex-module-starship.git
\* Getting package from 'https://github.com/orefalo/murex-module-starship.git'....
Cloning into '/home/aroedset/.murex_modules/murex-module-starship'...
Error in `murex-package` (0,1): \* Package 'murex-module-starship': Error loading module `starship` in path `/home/aroedset/.murex_modules/murex-module-starship/starship.mx`:
> \* Missing required executable, builtin or murex function: `starship`
.murex_modules »
And then the time I allocated for myself for trying out a random shell I found on the internet was up.
The first is definitely a known limitation already, so a bug report isn't particularly useful, and the second is not a bug, just a missing dependency. Maybe the error messages could be friendlier, but they're not particularly difficult to parse.
