The Official National Train Map Sucked, So I Made My Own
Hi HN, I’m a junior developer. I wanted to share a side project I’ve been working on. The national railway carrier (BDZ) has no public API. They have an official map but the UI is quite dated, often lags, and doesn't show the full route context. I wrote a short write-up about the process here: https://www.pavlinbg.com/posts/bg-train-tracker I know it's still rough around the edges (I'm still working on it), but I’d love to hear your feedback or suggestions!
In plain words
This is an interactive train map for Bulgaria's national railway system, built to address limitations in the official carrier's outdated interface and lack of public API access. It displays full route context and performs better than the original tool. Created by a junior developer as a side project, it is designed for anyone needing to view Bulgarian train routes and schedules. The project remains under active development.
written from the facts on this page · September 2026
Does a similar job
all alternatives →- IHIs Hormuz open yet?Apr 2026 · ishormuzopenyet.com · ▲484
I built this because I was interested in the data. Didn't fully get it to what I wanted, but thought I'd share it nonetheless. Maybe someone has better data sources they could share! Turns out live ship tracking APIs are expensive so I manually just copied the json from https://www.marinetraffic.com/en/ais/home/centerx:57.4/cente... I'll probably have an ai agent do the same thing on some cron interval, if this gets any fanfare. To actually know if the port is open without live ship tracking I found…
- IBI built a transit travel time map2023 · map.henryn.xyz · ▲255
This was something I built while trying to look for housing in Toronto that was decently transit-accessible to my office while still cheap. The backend is written in Rust. It parses public GTFS data from transit agencies and performs a simple heuristics-based BFS on the bus lines to calculate how long to reach all points in a city. The frontend uses React and Mapbox GL to render each individual road segment based on how long it takes to reach. This project was a great excuse to learn Rust, deployments, and mapping. The source code is here if you are interested:…
- SHSelf-Hosted Maps Stack2022 · maps.ellenhp.me · ▲213
Over the past week I built a project to let people self-host an entire maps stack so they don't have to send data to the big G. Right now it includes a base map, geocoder and directions server. Currently only bicycle directions are supported, and I'm only hosting tiles for Seattle because I'm unemployed and can't afford to host data for the whole planet. Check it out! https://maps.ellenhp.me/ https://github.com/ellenhp/headway Ultimately I'd like to really focus on transit routing (not implemented) but I'll probably throw a driving mode in there too.
Tokyo Trains26d ago · greggman.github.io · ▲13Semi inspired by the 3d Shinjuku station that was posted again recently, I noticed it was missing a large portion of the "complex" where "complex" is defined loosly has how far you can walk without stepping outside. So I asked Claude to make a 3d map of all Tokyo Trains, no libraries, and let you zoom into stations, and the first version with both map and the Shinjuku complex was ready in about 3 hours. It spent another 7 or so in various nit picky things I asked for to get to the current version. I know these will only get better but I think the thing I find most interesting is no libraries…
- BGBuzMap – Global Unified Transit Map2020 · ▲14
I have created a single map that lets you easily browse all bus, tram, metro, ferry and train routes. I’ve loaded some data from Europe, Israel and India. It's called BuzMap: Here is an update, there is a previous outline linked at the bottom State of the BuzMap - http://buz-map.com I have done significant work over the last 3 months to get BuzMap further towards a usable product and at least prove the scalability of the architecture and I hope a glimpse of where we can go with this.. I have what I think is a viable user interaction model. Upon touching or hovering over a section…
- DADesert Atlas, a self-hosted OpenStreetMap app for Sandstorm2023 · sandstorm.org · ▲101
Hi all, This project release is a long time coming. It was a big uphill battle, and by far my largest endeavor so far. I built it for Sandstorm because I believe in Sandstorm's model, and I wanted to show that there's still life and potential in it. If you're inspired, joining our OpenCollective would be really helpful: https://opencollective.com/sandstormcommunity (keeping in mind that Sandstorm has now moved from its original leadership to a community project https://sandstorm.org/news/2023-11-03-from-io-to-org). You can also join our mailing list or…
More dev tools this month
the category →
The first open-source price index for GPU compute
Dev tools · 10d ago · getcomputable.com
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.
Dev tools · 2d ago · opentrailpaper.com
Open-source GTM skills for technical founders
Dev tools · 30d ago · gtmcofounder.com
Launched alongside, December 2025
the whole month →- GP
Life & fun · Dec 2025 · dosaygo-studio.github.io
- JG
Hi everyone! My name's Luke and I made the original Jmail here alongside Riley Walz. We had a ton of friends collaborate on building out more of the app suite last night in lieue of DOJ's "Epstein files" release. Please AMA!
Life & fun · Dec 2025 · jmail.world
PlanEat AI▲733AI turns your health goals into a 7-day menu & grocery list
AI · Dec 2025 · planeatai.com
- 2G
Community, All the HN belong to you. This is an archive of hacker news that fits in your browser. When I made HN Made of Primes I realized I could probably do this offline sqlite/wasm thing with the whole GBs of archive. The whole dataset. So I tried it, and this is it. Have Hacker News on your device. Go to this repo (https://github.com/DOSAYGO-STUDIO/HackerBook): you can download it. Big Query -> ETL -> npx serve docs - that's it. 20 years of HN arguments and beauty, can be yours forever. So they'll never die. Ever. It's the unkillable static archive of HN and it's…
Dev tools · Dec 2025 · hackerbook.dosaygo.com
