OK, thanks again to everyone for the valuable feedback. I now settled for "not yet another product" and set up and configured full text indexing for my Nextcloud and installed a better PDF and ePub reader app on Nextcloud. That combined with a folder structure that now need not be perfect - because full text index - is probably going to do it.
The full text index based on Elastic even catches the ePubs from my Calibre library
I have come to realise that for private data and projects it is probably best to use one product and see how far that takes you. With Nextcloud unfortunately it always takes a bit of work to find out if one particular "app" is really practical or just a proof of concept.
E.g.
- Wiki ("Collectives") - limited but works for me. I ran Confluence on prem before.
- Todo/Kanban ("Deck") - no way, even for personal use e.g. Vikunja is far superior.
- PDF-Documents - well, for invoices, contracts, etc. I run Paperless-NGX, anyway, but that is also not well suited to papers and presentations just like (for me!) Calibre. So Nextcloud it is.
- etc.
@meeera When I first looked at Devonthink my immediate reaction was "yeah, sort of like Paperless-NGX". It's so easy to spin up yet another piece of software, and there is so much duplicated functionality, it's really overwhelming some times.
Kind regards,
Patrick