I self-host forgejo. I'm not a heavy or advanced user, and it suits my needs. I barely use github any more: mainly to star repos I like, and find and use repos (there's a ton there - it's almost ubiquitous).
I self-host xBrowserSync. It's a bookmark sync tool, not a link manager, but it does that very well (set-and-forget - it's almost invisible). There are browser extensions and mobile apps
I've also used Shaarli, which is more of a link sharing tool. Don't remember much about it, though - sorry.
I just learned about OpenFreeMap. I've not done it but it touts itself as a simple way to host your own tile server. I'm assuming that your proxy would work for a self hosted tile server with a few alterations.
[SOLVED!] That Stack Exchange post was the solution! I had to ask ChatGPT for assistance (e.g., "how do I view the contents of a .crt and a .p12?", "how do I add a CA to a client cert?"), but it worked. Thanks for your help, @Evkob@lemmy.ca.
I don't think I would have ever thought that my client cert didn't contain the CA, especially because when I clicked on the client cert that was installed in GrapheneOS, it showed me a summary that said it did contain a CA! grrrr
Thanks for your research and the suggestion, @Evkob@lemmy.ca.
I wasn't able to make that work, but I don't think it was trying to solve the problem I'm having, anyway. That procedure was to add self signed SSL certificate to Android, but my certificate is neither self-signed nor an SSL cert. At least I think not - I find certs very confusing. The cert I'm trying to work with is an mTLS cert, a client cert. It's not used to establish a secure SSL connections, it's used to verify that I (the person with the cert) and authorized to use the app.
Additionally, I'm able to successfully install the cert into Android, but the problem is that it seems to be ignored. The mTLS cert is installed in GrapheneOS's "VPN & App User Certificate" section, and my CA cert is installed in the "CA Certificate" section. Vanadium, Fennec, and Mull browsers just aren't using them. :(
I tried to install my client cert in "CA Certificate" but the certificate manager app in GrapheneOS said that it was the wrong kind of cert to be used in "CA Certificate". It is, after all, a client cert, not a CA cert.
Glances?