so i’ve been searching for a long time for an image tagging software, there are some tools out there, some are electron based so no thanks, then there’s Hydrus which is actually very similar to what this does, but the GUI is horrible and the installation is way more complicated. I created a docker compose file and I was running Blombooru in a few minutes. So if anyone was looking for something like this to organize their system, please give it a try because it is really good!
Other have already explained, but to simplify, a tag-based media archive. The original is Danbooru (cardboard), an anime-based one (including NSFW, so I haven’t linked). They often tend to be fandom-based.
A high-quality safe-for-work example of a standard online booru is Find A Fox.
OP’s tool is a local single-user booru instead, using Hydrus Network as an example. Personally, I like its UI, and while it has a developer-driven swiss-army knife design vibe, I still like it and have used a wide range of its many options. I haven’t tried Blombooru and can’t see many screenshot samples so I can’t assume what specific issues OP has and how Blombooru solved them.