Custom Base URL Support

[GlowingScrewdriver]

Describe the solution you'd like

Would it be within the scope of the project to have support for a custom base URL? I know there has been discussion on this, e.g. in #2129 and #436, and I am also aware that the recommended way to use the server behind a reverse proxy is via a custom subdomain prefix. However, being able to use a path prefix would be useful for people who don't own public IPs, and instead make do with tunnels.

Type of feature

Integrations

Additional context

I have been hacking on the router in the Memos frontend to get it working under a subpath (albeit hardcoded), and I have had some success. It works well enough that I'm able to use it. I just wanted to discuss it here before I go ahead and develop a full solution for it. Would you be open to merging such a contribution?

[beshanoe]

I think it's a great idea and needs to be implemented

[GlowingScrewdriver]

I've been running Memos on a subpath of my server for a couple of weeks now, and it's been working fine. Check it out here:
GlowingScrewdriver/memos

[RoccoSmit]

@boojack , not sure what the requirements are to be added to the Memos community page, but was thinking GlowingScrewdriver/memos would be a useful addition based on the previous issues regarding this being raised as well as the pr that is currently open for subdomain hosting