Obsidian is a way you could do this sort of thing. Uses markdown language to generate new pages and articles. Comparable to a much lighter weight OneNote with extensibility. Introduced by a GenX to me to my pleasant surprise.

Personally free, not open source, can be integrated into git easily. Probably some legwork to transition your existing notes in but likely a improvement over notepad++. Besides the executable the storage of notes is all plaintext with markdown language.

Is there any support for heart rate data inclusion on recorded trails? Maybe I’m really looking for a different app to keep track of that sort of thing. I haven’t yet started monitoring heart rate on my bike rides but I’m considering options for tracking now.

I host wanderer and really enjoy it for what it is. I’m only supporting my wife and I but am considering opening it up to my friend group.