PS: The "SHA256 CHECKSUMS VERIFIED." is static. No hash check is performed, and as far as I can see the website doesn't have a list of hashes to check.
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Public WhoIS registrant:
Chris [redacted]
The Dosyago Corporation
Beaverton, Oregon
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OP has ~2 year old /hn/ account, with ~11k karma
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I have made no further investigations, but obviously haven't installed this myself (as I have an IRL pager that solves similar issues to OP's).
> The system is intentionally raw. No headers, no JSON, no XML.
> Transport: UDP Port 7777
> Encoding: UTF-8 Plain Text
> Format: [SECRET::]MESSAGE
you dont get it, the protocol is flawless
Your radar was okay: site is machine-generated by build workflow which pushes the binaries. The "Verified" label reflects internal CI attestation, but without public hashes? Might cause concern. Did not consider, tho based on your comment I've now replaced with "Digitally Signed and Notarized".
So reflects more accurately how the binaries are always digitally signed and notarized (Apple Developer ID + Microsoft Authenticode) with our company certs. SOP for my releases. The verification is the cryptographic signature checked by your OS kernel, not just a text file.
I actually like this presentation better now!
keepamovin•20h ago
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
blargwill•19h ago
Landing page (doesn't link to anything): https://fob.launchbowl.com/
A little word dump of thoughts at the start of the journey: https://launchbowl.com/e_ink_pager
Your project seems really cool and allows you to bring your own hardware. Out of curiosity, have you blocked all notifications on your phone? Would this be run on your computer? Would you ever move in the direction of a physical device?
wkat4242•19h ago
I just have a pretty strong desire to get my anonymity back when I want it. Not because I need it but just to feel free again.
ProllyInfamous•18h ago
I have and use one, partially for the reasons you list above.
[•] Not a representative of the company, just a very happy customer.
wkat4242•12h ago
Thanks for the tip though!
keepamovin•18h ago
andai•19h ago
ProllyInfamous•18h ago
I still use one which gets one-way service from <https://pagersdirect.net/> (~$14/mo, with phone number and pager included). Most US cities, large and small, still have active infrastructure. I live in a city with a few hundred thousand people, great coverage.
This has replaced my mobile phone, which I no longer carry. It also prevents spammers from messaging... because the systems don't understand this antiquated technology [1].
For those interested, Pagers Direct has an email-to-pager option (I don't use it, phone digits only please caller, after the beep). It also has two-way pagers, which I have no experience with.
One caution: for one-way pagers, if you're out of range[0] when somebody sends you text, you will never get the message (no handshake/confirmation).
[0] does not use traditional cellular infrastructure
[1] TBH: most humans don't either, unless you explain how to page somebody: key in your callback#/code after the beep [no audio/text]
[•] I don't work for the above-linked paging service, I'm just a very happy customer.
keepamovin•18h ago
ProllyInfamous•18h ago
>builds simple, DIY kits for them
So I highly doubt this would be profitable for you.
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As far as the paging infrastructure is concerned, all the messages are mass-sent, in an un-encrypted analogue broadcast. EVERY device receives EVERY page, as long as within range. It is the pager itself which chooses to only display "your" message(s).
Your DIY hardware could lead you into some interesting discoveries of your local area's messaging/users.
mbirth•11h ago
Got lots of server health messages and requests to call people back. And some more personal messages, too.
ProllyInfamous•18h ago
>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).
Personally, this seems like a really bad idea. The similarity to actual phone numbers might lead to confusion by non-technical high-trust contactors. Worse (e.g.) if the IP were 91.1x.x.x then this could lead to further confusion &/or erroneous 9-1-1 misdials (by inept contactors).
It's a UDP packet, ought it not be in IP-format?
>where you only want interruptions from a high-trust circle
I don't even have a phone contact number anymore. After you page me, I'll VoIP you back from an outbound-only.
But overall I LOVE that you have attempted this; only real problem for your average installer/recipient is that most home ISPs are firewalled (so a UDP7777 inbound isn't possible), but this obviously isn't for even your average technical installer.
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Just leave me alone, world/SPAMmers!
How do you prevent malicious actors from invading your 7777UDPs?
keepamovin•10h ago
koakuma-chan•18h ago