It’s not surrounded by a ton of corporate bs. I know the us govt has their own openstreetmap setups (like this basic unclassified one) and wiki sites (intellipedia) because it’s a proven framework to set up and add your own information.

gps too

Meshtastic is cool I wish there were more public users around me.

OpenStreetMap and their editors are great and I use them a lot, but if you really want to have great flexibility with your map design QGIS is Open Source

Here’s a video on how to use it

You can use CalTopo’s print pdf to print that OSM data too