A pager

Hello HN,I basically don't use notifications for anything. The noise is too much. Slack is too loud. Email is too slow. But sometimes you do need a note in your face.I found myself missing 1990s pagers. I wanted a digital equivalent - something that does one thing: beep until I ack it.So I built UDP-7777.Concept:- 0% Cloud: It listens on UDP Port 7777. No accounts, no central servers. You don't need Tailscale/ZeroTier/WG/etc, it's just easy for device sets.- CAPCODES: It maps your IP address (LAN or Tailscale) to a retro 10-digit "CAPCODE" that looks like a phone number (e.g., (213) 070-6433 for loopback).- Minimalism: Bare-bones interface. Just a box, a few buttons, and a big red blinker.The Tech:It's a single binary written in Go (using Fyne). It implements "burst fire" UDP (sending packets 3x) to ensure delivery without the handshake overhead of TCP.New in v2.2.7:- Frequency Tuning: Bind specifically to your Tailscale/ZeroTier interface.- Squelch: Optional shared-secret keys to ignore unauthorized packets.- Heartbeat: Visual/Audio alerts that persist until you physically click ACK.I built this for anyone looking to cut through the noise—DevOps teams handing off the "on-call IP", or deep-work focus where you only want interruptions from a high-trust circle.I'd love to hear your thoughts on the IP-to-Phone-Number mapping logic (it's purely visual, but I'm really into it).Site & Binaries (Signed for Mac/Win): https://udp7777.com