picomc is a cross-platform command-line Minecraft launcher. It supports
all(?) officialy available Minecraft versions, account switching and
multiple separate instances of the game. The on-disk launcher file
structure mimics the vanilla launcher and as such most mod installers
(such as forge, fabric or optifine) should work with picomc just fine,
though you will have to change the installation path.
Don't hesitate to report any problems you run into.
The easiest and most portable way to install picomc is using pip, from the Python Package Index (PyPI):
pip install picomc
Depending on your configuration, you may either have to run this command
with elevated privileges (using e.g. sudo) or add the --user flag like this:
pip install --user picomc
The quickest way to get started is to run
picomc play
which, on the first launch, will ask you for your account details,
create an instance named default using the latest version of Minecraft
and launch it.
Of course, more advanced features are available. Try running
picomc --help
and you should be able to figure it out. More detailed documentation may appear someday in the future.
For project management and dependency tracking picomc uses
Rye.