I think you have done a great job! It's really clean and works well. One nit was that adding a tag redirects to a new page, losing whatever prompt text I filled in. Probably would benefit from a more responsive form for this but that is annoying to implement.
I am curious how you built and deployed it. If you're interested to share, I have some questions!
I found an ex-office HP computer with and i5-4670 on the side of the road and have been thinking about setting it up as a home server. Does anyone have a recommendation for how to set it up as a NAS, VPN, Home Assistant and Plex server?