It's open source and supports markdown.
You also have the option to separately encrypt the notes of you want - although this means they can only be read and edited with a joplin app (clients exist for all OS)
I use this currently, works really well
Yep. Its not the answer OP asked for, but this is my setup as well. Simple text is stored in Joplin, Nextcloud is for everything else.
Joplin works pretty well.
It's open source and supports markdown. You also have the option to separately encrypt the notes of you want - although this means they can only be read and edited with a joplin app (clients exist for all OS)
I use this currently, works really well
Yep. Its not the answer OP asked for, but this is my setup as well. Simple text is stored in Joplin, Nextcloud is for everything else.