I got access to around 30,000 Berlin apartment listings from the last year. The end goal to help foreign apartment seekers rate a listing’s price, size and location, and to give people realistic expectations. For example if your search criteria returns two listings per month and the chance of getting the flat is 1:100, you might rethink your approach.
The first release will be a map of median rent per square meter. Simple stuff.
I'm building IPASIS (https://ipasis.com), a real-time IP reputation API to detect VPNs, proxies, and bots.
The infrastructure runs entirely on Google Cloud Run. This makes it super easy to spin up instances in regions close to the customer, ensuring we keep latency under 20ms regardless of where the traffic originates.
How it works: Instead of just static geo-data, I aggregate live threat feeds and behavioral signals to score IPs in real-time. It returns a simple JSON response with flags like is_vpn, is_proxy, is_tor, and a risk score.
Tech Stack:
Go and Redis for the low-latency API.
Google Cloud Run for instant global scaling.
Ingesting data from multiple open and private threat feeds continuously.
It has a free tier if anyone wants to test it against their current logs. I’d love feedback on how to improve it further.
HN should start a "what would you like to work on?" where people can post projects they want to start, and maybe where they are uncertain to start - then can get advice
Working on https://greatreads.dev/
A place to aggregate and find articles from developers' blogs. Right now, I'm building a submission form for people to submit new sources.
There is also a way to search for articles using vectors, it's called "Semantic Search". So basically you can ask, for example, "Postgresql and how to best optimize it." and it would search for articles touching that subject, or at least related to it.
Wondering about the best way I can add a weekly newsletter built on top of the content currently being ingested, and still looking for more sources to add to the database (let me know if you have any good recommendations).
Doing something similar for a non-public project. How do you deal with remixing feeds, and the potential mix of formats (rss, atom, etc)? I need to create new feeds as well, and if its done by normalizing, sanitizing content, etc. I feel I misrepresent the original content, and probably breach the implicit license granted by syndicating via feed.
Probably very few creators care one way or another, as the links are going to the original content. Just interested if people had an opinion on the matter.
I'm working on Tech Talks Weekly[1] which is a free weekly email with all the recently published Software Engineering podcasts and conference talks in the past 7 days.
Every week I pull all the new talk recordings from hundreds of conferences (Devoxx, KubeCon, PyCon, QCon, LeadDev, JSNation, and many more) and even more podcasts podcasts. I feature the ones I think are must-watch with short summaries written by me, then include a list of everything else uploaded that week.
It started as a personal project to fix my own messy YT subscriptions and RSS feeds and now 7,500+ people read it.
I also publish extra editions from time to time like “The Most Watched Talks of 2024” which made it to the HN front page.
If you watch software engineering conference talks or listen to podcasts, you might find it useful. I’d love to know what you think!
I've been working on a digital math workbook. Currently the demo covers fourth grade math. There is a practice mode where you can select the skills you to want practice. There is also a customizable dashboard where you can setup your own tasks. There is still a lot of work to do with improving the UI, but I think it is a good start.
I am currently working on fifth grade math. My plan is to cover first grade math up to Calculus and High School Physics. I envision it as a companion tool for Khan Academy/Math Class/Math Books. It is inspired by Chris McMullen's math workbooks.
Want to put local history on a map, so when I go somewhere I could ideally just open this webapp and immediately get presented with cool or interesting history that happened close by.
Currently spending time establishing relationships with historical societies, as I really need them to contribute points of interest, and stories. Many of these societies are run on a voluntary basis by 70+ year olds, so it's a long process. Getting some good responses eventually though, so it might actually go somewhere, just a lot slower than I want.
Also still doing https://wheretodrink.beer, but haven't added anything of note since playing on this other project.
Flotte, a ssh access management solution for hobbyist and small to medium-sized businesses.
We aim to provide a fast JIT ssh cert attestation.
With focus on:
* making on/offboard users fast
* efficient workflows (no need to lookup passwords for logins or sudo)
* mitigate private key leaks (especially in BYOD/BYOK environments)
* Help admins manage server access fast
A different kind of Internet message board based on two principles: each sentence written must be true, and claims must be easy to verify.
I want something different than Reddit or HackerNews. Something that can't be gamed by flawed metrics or AI. There are some ideas for a different way to rank comments.
This is really cool. Can you describe more about the scenarios you define and how you manage them over time? I can imagine if you end up with a lot of them, then it becomes time consuming to perform all of the visual tests or handle the human-in-the-loop part.
I wonder if you could do some automated diffing between the scenario results. If they are pretty similar and they were previously considered in a good state, then you don't necessarily need a QA person to review it.
I'm working on a meta framework for building "full-stack" libraries. I.e. libraries that bundle frontend hooks, backend routes, and a database schema into a single package.
This allows library authors to do more, like defining webhook handlers and (simple) database operations. The idea is to move complexity from the user to the author, making integrations easier.
I think libraries being allowed to write to your database is a pretty powerful concept, and can enable a number of interesting use cases.
I'm working on a command-line tool for advanced full-text search of written documents. It works in a completely different way than grep, so it can do a lot of operations that grep fundamentally cannot like fuzzy searching and proximity searching. I needed something like this for my scientific research, and I'm glad that I have this capability now. I hope others find it useful too!
I'm building a Typeform/Google Forms alternative that integrates into existing applications and stores data in your own database. It allows you to define forms in JSON Schema or JSON Forms. Forms can be added or removed dynamically, and submissions are sent to your backend and in turn stored in your database.
Built using our full-stack library toolkit Fragno [0].
Unpark - Domain Activation Engine. I built this to solve my own problem of having 30+ parked domains. Instantly generates and deploys a simple AI website to any parked domain. For domain hoarders who aren't web developers.
I am working on https://ui.telezen-ai.com it's a SaaS landing page template built in nextjs and Shad Cn. it's to give people a good starting point when building their own landing pages
1. I don't like how if I already place an Ace and then reveal a 2 that matches it suit, it then automatically moves it over. While mostly trivial, it still takes a way one move from the player and automates it.
2. Would you be willing to expose the value that seeds the game? That way any particular game of solitaire is replayable or sharable with a friend.
Thank you for the feedback. For first one I'm turning it off, this has been a piece of a feedback already. For the second – yes, as part of daily/winnable deal package in Q1 next year.
Puzzleship - a free daily puzzles website with the archives paywalled. Right now it has Logic Grid Puzzles and Zebra Puzzles.
I'm pretty proud of the LGP generator algorithm and some experienced players also liked the way the puzzles are constructed.
This is my first subscription site and it's been online for less than a week, so I'm learning a lot and trying to figure out the pricing.
UkulelExplorer https://github.com/hallvaaw/UkulelExplorer - An app for exploring the ukulele fretboard with custom tunings. Because of its small body size and having four strings, people often think of ukulele as a toy rather than an instrument. I believe that by exploring and finding custom tunings, the ukulele can be a quite versatile instrument.
I got access to around 30,000 Berlin apartment listings from the last year. The end goal to help foreign apartment seekers rate a listing’s price, size and location, and to give people realistic expectations. For example if your search criteria returns two listings per month and the chance of getting the flat is 1:100, you might rethink your approach.
The first release will be a map of median rent per square meter. Simple stuff.
I'm building IPASIS (https://ipasis.com), a real-time IP reputation API to detect VPNs, proxies, and bots.
The infrastructure runs entirely on Google Cloud Run. This makes it super easy to spin up instances in regions close to the customer, ensuring we keep latency under 20ms regardless of where the traffic originates.
How it works: Instead of just static geo-data, I aggregate live threat feeds and behavioral signals to score IPs in real-time. It returns a simple JSON response with flags like is_vpn, is_proxy, is_tor, and a risk score.
Tech Stack:
Go and Redis for the low-latency API.
Google Cloud Run for instant global scaling.
Ingesting data from multiple open and private threat feeds continuously.
It has a free tier if anyone wants to test it against their current logs. I’d love feedback on how to improve it further.
HN should start a "what would you like to work on?" where people can post projects they want to start, and maybe where they are uncertain to start - then can get advice
Working on https://greatreads.dev/ A place to aggregate and find articles from developers' blogs. Right now, I'm building a submission form for people to submit new sources.
There is also a way to search for articles using vectors, it's called "Semantic Search". So basically you can ask, for example, "Postgresql and how to best optimize it." and it would search for articles touching that subject, or at least related to it.
Wondering about the best way I can add a weekly newsletter built on top of the content currently being ingested, and still looking for more sources to add to the database (let me know if you have any good recommendations).
Doing something similar for a non-public project. How do you deal with remixing feeds, and the potential mix of formats (rss, atom, etc)? I need to create new feeds as well, and if its done by normalizing, sanitizing content, etc. I feel I misrepresent the original content, and probably breach the implicit license granted by syndicating via feed.
Probably very few creators care one way or another, as the links are going to the original content. Just interested if people had an opinion on the matter.
that's a really cool project! I'm building something similar, but for conference talks and podcasts[1], but in a form of a newsletter.
I use semantic search ocasionally when building extra editions and use a sentence transformer with all-MiniLM-L6-v2 model.
How did you go about implementing semantic search in your app?
[1] https://techtalksweekly.io/
Nice job. The order options don't seem to work when searching.
Good catch, something is definitely not right there. I'll take a look.
I checked it out. It looks good.
I'm working on Tech Talks Weekly[1] which is a free weekly email with all the recently published Software Engineering podcasts and conference talks in the past 7 days.
Every week I pull all the new talk recordings from hundreds of conferences (Devoxx, KubeCon, PyCon, QCon, LeadDev, JSNation, and many more) and even more podcasts podcasts. I feature the ones I think are must-watch with short summaries written by me, then include a list of everything else uploaded that week.
It started as a personal project to fix my own messy YT subscriptions and RSS feeds and now 7,500+ people read it.
I also publish extra editions from time to time like “The Most Watched Talks of 2024” which made it to the HN front page.
If you watch software engineering conference talks or listen to podcasts, you might find it useful. I’d love to know what you think!
[1] https://techtalksweekly.io/
Making rent as an open source developer.
Attracting new monthly sponsors and people willing to buy me the occasional pizza with my crappy HTML skills.
https://brynet.ca/wallofpizza.html
I've been working on a digital math workbook. Currently the demo covers fourth grade math. There is a practice mode where you can select the skills you to want practice. There is also a customizable dashboard where you can setup your own tasks. There is still a lot of work to do with improving the UI, but I think it is a good start.
I am currently working on fifth grade math. My plan is to cover first grade math up to Calculus and High School Physics. I envision it as a companion tool for Khan Academy/Math Class/Math Books. It is inspired by Chris McMullen's math workbooks.
Check out the demo. No signup required. Progress is only stored locally. https://demo.numerikos.com/
Are you planning on offering printable worksheets as well?
Yes, it is a little bit further down in my todo list, but I think for teachers (and students who like worksheets), worksheets would be a nice feature.
Yes, I think so too. Also, they're great to bring organic traffic.
Want to put local history on a map, so when I go somewhere I could ideally just open this webapp and immediately get presented with cool or interesting history that happened close by.
Currently spending time establishing relationships with historical societies, as I really need them to contribute points of interest, and stories. Many of these societies are run on a voluntary basis by 70+ year olds, so it's a long process. Getting some good responses eventually though, so it might actually go somewhere, just a lot slower than I want.
Also still doing https://wheretodrink.beer, but haven't added anything of note since playing on this other project.
And react2shell was a fun time
An exercise in simulating sports fandom on a map. To do things like simulate expansion and relocation of franchises.
The idea of turning this into a simulation game is a possibility hence "warz" in the name.
It is a bunch of Jupyter notebooks being served by Voila. The "Blank.ipynb" one is more interactive but the ergonomics need work.
It is running free tier hosting so it could swamped if enough people use it simultaneously:
https://sportwarzsim-production.up.railway.app/
https://github.com/daltontf/SportWarzSim
There are instructions to run locally via Docker in the README.md
I'm working on https://www.root-dir.com - a command-line community with public profiles and an IRC style chat.
You can't use this without having at least basic knowledge of the command-line.
Currently in closed beta, but sending out new batches of invites frequently.
Flotte, a ssh access management solution for hobbyist and small to medium-sized businesses.
We aim to provide a fast JIT ssh cert attestation.
With focus on: * making on/offboard users fast * efficient workflows (no need to lookup passwords for logins or sudo) * mitigate private key leaks (especially in BYOD/BYOK environments) * Help admins manage server access fast
GitHub(WIP): https://github.com/flotte-sh
Your homepage https://flotte.sh/ is showing a Welcome to nginx message.
We currently don't have a website (sorry), but we are working on it!
And thanks for checking us out :)
I am working on a web-based guitar RPG
You can fight monsters, craft, and conjure magic by playing real notes on your actual guitar. Web Browser Audio API handles pitch detection.
Basically, trying to make guitar practice a bit more fun by adding gamification.
Free demo: https://openfret.com/game/demo
A different kind of Internet message board based on two principles: each sentence written must be true, and claims must be easy to verify.
I want something different than Reddit or HackerNews. Something that can't be gamed by flawed metrics or AI. There are some ideas for a different way to rank comments.
https://truediffs.com
Edit: I wonder why this HN thread doesn't get lots of comments, why a similar thread from a week ago also didn't get lots of comments https://news.ycombinator.com/item?id=46118229 but a thread posted specifically by https://news.ycombinator.com/submitted?id=david927 gets hundrerds to thousands of comments https://news.ycombinator.com/item?id=45869146
Sente - a custom browser agent for QA automation http://sente.run/
This is really cool. Can you describe more about the scenarios you define and how you manage them over time? I can imagine if you end up with a lot of them, then it becomes time consuming to perform all of the visual tests or handle the human-in-the-loop part.
I wonder if you could do some automated diffing between the scenario results. If they are pretty similar and they were previously considered in a good state, then you don't necessarily need a QA person to review it.
I'm working on a meta framework for building "full-stack" libraries. I.e. libraries that bundle frontend hooks, backend routes, and a database schema into a single package.
This allows library authors to do more, like defining webhook handlers and (simple) database operations. The idea is to move complexity from the user to the author, making integrations easier.
I think libraries being allowed to write to your database is a pretty powerful concept, and can enable a number of interesting use cases.
https://github.com/rejot-dev/fragno
I'm working on a command-line tool for advanced full-text search of written documents. It works in a completely different way than grep, so it can do a lot of operations that grep fundamentally cannot like fuzzy searching and proximity searching. I needed something like this for my scientific research, and I'm glad that I have this capability now. I hope others find it useful too!
I called it Wosp for word-oriented search and print. See the GitHub page for more information: https://github.com/atrettel/wosp
An AI copilot for LibreOffice Writer. My extension just got published in the LibreOffice marketplace 43 mins ago https://extensions.libreoffice.org/en/extensions/show/99471
I'm building a Typeform/Google Forms alternative that integrates into existing applications and stores data in your own database. It allows you to define forms in JSON Schema or JSON Forms. Forms can be added or removed dynamically, and submissions are sent to your backend and in turn stored in your database.
Built using our full-stack library toolkit Fragno [0].
[0]: https://fragno.dev/
Unpark - Domain Activation Engine. I built this to solve my own problem of having 30+ parked domains. Instantly generates and deploys a simple AI website to any parked domain. For domain hoarders who aren't web developers.
[0] https://unpark.ai
I am working on https://ui.telezen-ai.com it's a SaaS landing page template built in nextjs and Shad Cn. it's to give people a good starting point when building their own landing pages
https://inSolitaire.com
I'm building on an ad-free website with 50+ solitaire/puzzle games.
Gotten some feedback from HN already and now fixing things – basically rewriting the engine for the 4th time.
Hoping to add some hundred games more soon!
Two thoughts on solitaire.
1. I don't like how if I already place an Ace and then reveal a 2 that matches it suit, it then automatically moves it over. While mostly trivial, it still takes a way one move from the player and automates it.
2. Would you be willing to expose the value that seeds the game? That way any particular game of solitaire is replayable or sharable with a friend.
Thank you for the feedback. For first one I'm turning it off, this has been a piece of a feedback already. For the second – yes, as part of daily/winnable deal package in Q1 next year.
VERDURE is still a creative plant-generation sandbox where you grow and sculpt stylized trees.
https://store.steampowered.com/app/4069810/VERDURE/
Refining my Svelte S&P 500 correlation matrix
https://cybernetic.dev/matrix
Working on a memory layer for AI agents, a fun project and lots of interesting design choices I need to make.
Puzzleship - a free daily puzzles website with the archives paywalled. Right now it has Logic Grid Puzzles and Zebra Puzzles. I'm pretty proud of the LGP generator algorithm and some experienced players also liked the way the puzzles are constructed. This is my first subscription site and it's been online for less than a week, so I'm learning a lot and trying to figure out the pricing.
https://www.puzzleship.com/
UkulelExplorer https://github.com/hallvaaw/UkulelExplorer - An app for exploring the ukulele fretboard with custom tunings. Because of its small body size and having four strings, people often think of ukulele as a toy rather than an instrument. I believe that by exploring and finding custom tunings, the ukulele can be a quite versatile instrument.