Jose Varela is a user on unshaped.space. You can follow them or interact with them if you have an account anywhere in the fediverse.
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I made something for Mastodon: A gallery mini-app.
https://source.joinmastodon.org/Gargron/gallery
You can simply drop it in your Mastodon server's public folder, and it will show images from your server in a mosaic grid with infinite scroll. Supports some configuration as well, e.g. whether to limit it to only local images, or a specific hashtag, or which server to fetch from.
Okay, here is a demo! Everything in #mastoart:
https://mastodon.social/gallery/
Please mind that not safe for work images are displayed without warning in the gallery.
Very nice!