I installed Calibre proper and created the database. But its not aware of my chosen book location.
Calibre uses its own storage/file/folder layout. The usual way would be to set up a Calibre database, point it to the storage location you want, then import your books from wherever they're stored. Then point Calibre web view towards that library.
Notably missing will be Code-to-CAD options like OpenSCAD. I have a couple of them, and I have dabbled in PHP, Python, Pascal, and BASIC over the decades, but my brain just doesn't "see" in code.
I'm not sure I'd call that "missed". Rather "left out on purpose".
Source: USA