
Haip PMS
Open-source hotel PMS you self-host, no per-room fees
What it does
Hotels pay $10-30 per room per month for closed PMS platforms that lock their own data behind a thin API. HAIP is the open-source alternative. Reservations, folio and billing, rate plans, housekeeping, night audit, accounting, channel distribution, and a commission-free direct booking engine so a property keeps the 15-25% an OTA would take. Apache 2.0, self-hosted, runs with one docker compose up.
Does the same job
all alternatives →- STShort-term rental estimate for sites like Airbnb2017 · eliotandme.com · ▲220




- IBI built an extension to book Airbnbs directly2025 · openbnb.org · ▲8
Hi Hackers, My wife and I have been slow traveling around the world for last 3 years, and our top travel hack that has saved us most amount of money is to book directly with Airbnb host. We usually rent for a month so savings in fees are easily ~$300 - $500 on each stay, i.e. about 15-20%. Not every host offers it we respect that, but there are so many hosts out there that would rather have you book directly via their website and we as guests want the same. The problem is these hosts can’t promote or say that on Airbnb. This inspired me to build OpenBnB.org, where I’ve started collecting…
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OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
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Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com