

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.
Verizon branded pixels are unable to unlock the bootloader, I.e, mine. No amount of phone support will change this.