Self-hosted event & venue software
Slots that cannot double-book, digital waivers with a minor and guardian gate, a queue and token board for the door, one page naming everyone still inside when the alarm goes and the network is gone, a weekly rota with the double-bookings caught, a till engineered so the bar cannot oversell, and the hire invoice with its own payment link. Bought once, on the venue's own machine. Every tool below is a one-time purchase, and your data lives on your own server.
What the same jobs cost rented, year one
Every tool on this page is one payment; the figures above are the vendors' own published monthly prices multiplied by twelve, nothing else.
Self-hosted without the assembly
The other answer to “self-hosted” is a repository: clone it, read the compose file, provision a database, wire up mail, then keep it patched yourself. That is a fair answer when running infrastructure is already your job, and we would rather say so than pretend otherwise. Everything on this page is the other kind — all 7 of them. Each is bought once, the full PHP source is in the download, and the web installer finishes on ordinary shared hosting in about two minutes. No Composer, no Node, no build step, nothing to compile, and nothing that phones home.