Here's something I've been working on recently:
A monitoring system for MeshCore that gathers metrics from your repeater and companion nodes, stores them in a SQLite database, and creates a static site with interactive charts. It offers views for day, week, month, and year of battery and radio statistics. The system can be deployed via Docker or using native Python scripts.
Live demo: https://meshcore.jorijn.com
Source: https://github.com/jorijn/meshcore-stats