FWIW, I exported all my Evernote notebooks just recently from my old free account. Used https://github.com/akosbalasko/yarle to convert them to Markdown. It also has support for various PKB formats, like Obsidian. Hope that helps!
"Feel the fear and do it anyway" by Susan Jeffers. Read it while end of my university studies and a big reason to why I moved and now lives abroad (over a decade ago now).
"The Last Lecture" by Randy Pausch. Lots of life wisdom in there. https://www.cmu.edu/randyslecture/ I recommended to watch the video _after_ you read the book.
Interesting! I had a similar thoughts, but didn't want to start from scratch (I include Electron in this definition). Instead, I went with implementing it as a Atom package to leverage its community and other text-editing features. See https://github.com/viddo/atom-textual-velocity