If you installed goboscript using the auto-install script, then sb2gs should be already installed.
Install uv and run.
uv tool install git+https://github.com/aspizu/sb2gs
usage: sb2gs [-h] [--overwrite] [--verify] input [output]
positional arguments:
input
output
options:
-h, --help show this help message and exit
--overwrite
--verify Invoke goboscript to verify that the decompiled code is valid. This does not indicate that the decompiled code
is equivalent to the original.