Our ELN software has hit version 1.4 and is now complete. It can manage your research data by Samples, has a Wiki for documentation of processes, a dedicated instrumentation journal (for things not related to samples but to equipment) and finally an item inventory to track your stuff. It is written in Python using the Flask framework and HTMX as well as as _hyperscript for the front end.
It can be run on your own server or used for an institute as it supports different groups and data sharing between groups. Have a look at gitlab or Read the docs.