On a technical level, this seems to be a desktop web app which is overkill for a simple text editor. Compare its performance to notepad.exe which ran fine on machines from decades ago.
All data is stored on several USB keys that are backed up in several places. Private files are stored in a truecrypt volume. Encryption and media are easily changed if that becomes necessary and technology changes.
My collection currently holds 1508 files from Feb 1995 to today, in around 100 categories. For searching, I use the old ZTree, usually finds what I want in seconds.
Any ideas, hn experts?
 - https://dynalist.io