PartKeepr is an inventory management software, primarily designed for electronic components. Seems designed for hobbyist use, not necessarily professional.

PartKeepr is written in PHP and using the Symfony2 framework.

Hasn't been updated in a while so this may not be a useful thing to set up. It requires a version of PHP that even Dreamhost doesn't offer anymore (v7.1 or earlier because it's based upon Symfony v2 (and it's up to v5 now)).

Bookmarked mostly so that I remember the phrase "inventory mangement" to search on.

It seems that you can't use it with PHP newer than v7.1 due to the version of Symfony it's built on.