Add pixi list --explict

[bollwyvl]

Problem description

As always: thanks for pixi!

The creaky old conda list --explicit --md5 format (broken hash, without PyPI deps, and all) is still the most portable thing for feeding into other tools such as constructor and dependency scanners.

While it would be possible to make a third-party contraption that extracted this data from the pixi.lock file, if the structure of even that is in flux (#1172), having a pixi list --explicit in the near term is likely the easiest thing to offer to folk that are otherwise curious about pixi, but need to ship installers.

An extra magic bonus would be not having to re-calculate a matrix with something akin to conda-lock's template mechanism:

pixi list --explicit --format="path/to/folder/{environment}-{platform}.conda.lock.txt"

[ruben-arts]

That could make sense! Not sure how hard it would be as pixi can still read conda lock like format using rattler

[bollwyvl]

Cool. Or, as pixi list already has a lot of options, having an pixi export (with explicit as the first of perhaps several formats) would make sense.

[abkfenris]

Cool. Or, as pixi list already has a lot of options, having an pixi export (with explicit as the first of perhaps several formats) would make sense.

Apixi export command was also my first thought from hacking around in list recently.

[baszalmstra]

Will be implemented in: #1873

[bollwyvl]

Huzzah! Looking forward to the next release!