I am using Joplin for all my knowledge articles and notes. Available for all main desktop and mobile OS's. Great Evernote replacement with good Webclipper. Notes can be edited in Markdown. Syncing to Nextcloud, Dropbox, Onedrive, Webdav. And fully open-source. Currently a few 1000 notes, searchable or browsable via notebooks or tags.
Actually not in a home server, since it is in the cloud, but still...