By “homelab”, do you mean your local network? I tend to use shared folders, kdeconnect, or WebDAV.

I like WebDAV, which i can activate on Android with DavX5 and Material Files, and i use it for Joplin.

Nice thing about this setup is that i also have a certificate secured OpenVPN, so in a pinch i can access it all remotely when necessary by activating that vpn, then disconnecting.

I don’t knowvwhat mtls is, but Joplin has mostvof what you want. It does not have card layout native, but there might be a plugin for that.

For me, a C# developer by trade, this is easily solved with a one command C# call. It’s possible you already have dotnet 6 or 8 on your distro as there are many C# Linux apps now.

https://www.nuget.org/packages/System.Text.Json/9.0.0-preview.4.24266.19

It’s Teams, now.

You use a VPN, right?