Full refresh: Sat, 24 Oct 2026 22:07:48 +0200
Connected browsers: 0
Max boxes: 100000
Batch size: 333
Loaded in browser: 0
Kotlin, KTor and HTMX front end demos
This page shows synchronization between browser windows. Open multiple windows to this URL to see it in action.
Go here for a lengthy blogpost about the implementation and links to code. I use HTMX, SSE and KTor to do this. It is inspired by Hamilton Greene's 1000-checkboxes
Showing: 100 000 checkboxes. SSE update batches are 333.