In just around 30 minutes, you can self-host the entire planet using the OSM project. With simple commands like mkdir and wget, you can set up a server and view the planet map in your browser. Requirements include podman or docker and 90 GB of storage. The unique aspect is the quick setup and the ability to customize the map style for Nextcloud GxpPod. The server can handle vector map tiles using MVT format, allowing for easy viewer access. Controversially, the mbtiles file format requires un-gzipping in the browser. The project welcomes donations for large planet.mbtiles generation and hosting.
https://github.com/markuman/sms