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Show HN: Ghostman – A fast, keyboard-driven TUI API client and webhook inspector

https://github.com/4yk5/Ghostman
24•4yk5•1d ago•18 comments

Show HN: Marelleo, an open-source story box I built for my kids using ESP32

https://zebra.rodeo/en/blog/marelleo/
161•foOg•4d ago•43 comments

Show HN: Jointter – A daily word puzzle using dots and lines

https://www.jointter.com/
9•proy87•2h ago•10 comments

Show HN: A USB-C LTE modem that gives my computer a phone line

https://github.com/Koppar-AI/koppar-lte-modem
6•abijahkaj•3h ago•1 comments

Show HN: A working Nintendo in ~1GB of Qwen weights

https://github.com/dbreunig/nesformer
279•dbreunig•1d ago•141 comments

Show HN: Maclet – A native macOS container runtime written from scratch in Rust

https://github.com/sumant1122/maclet
3•paperplaneflyr•2h ago•0 comments

Show HN: To Honor Sir Patrick Stewart, Enjoy the TNG Episode Guessing Game

https://tng.episodle.com/
228•francisofascii•19h ago•71 comments

Show HN: Similarity, a spiritual successor to 2000s-era OkCupid

https://similarity.com
3•stickfigure•3h ago•2 comments

Show HN: Quit everything to make one website

https://hellojomp.com/
3•hellojomp•3h ago•0 comments

Show HN: I built a crawler that finds personal websites by a /.well-known/josh

https://joshternet.org/
4•TheWoollyBully•4h ago•0 comments

Show HN: Sketch Stadium – watch your agent play Pictionary

https://sketch.wakeshift.ai/games/q5ucru
35•ericlevine•1d ago•11 comments

Show HN: I rebuilt Kubernetes for ESP32 microcontrollers

https://github.com/arterialist/kube32
50•Arterialist•2d ago•16 comments

Show HN: I made a game about the 3k-year evolution of Chinese characters

https://chinese.vedranb.com/
3•vedran•1h ago•0 comments

Show HN: Mullvad as a rotating connect proxy

https://github.com/nicorobinreal/molehill
2•albinstman•6h ago•0 comments

Show HN: UPC Label Maker – 1:1 PostScript point barcode imposition for Avery/FBA

https://upclabelmaker.com/
2•dirtyfancy•6h ago•0 comments

Show HN: Million Piece Puzzle

https://puzzle.io27.com/
2•jeffbaumes•6h ago•1 comments

Show HN: I Turned DOOM into a Transformer

https://github.com/mottopanikeiku/doomformer
129•falperc•1d ago•35 comments

Show HN: Auto Dismiss Mac OS "Allow <app> to find devices on local networks?"

https://github.com/johncassil/dontallow
153•johncassil•1d ago•130 comments

Show HN: Spinf-serve – inference server for bulk scoring and decisions

https://github.com/spinfinc/spinf-serve
22•giarec•1d ago•5 comments

Show HN: A proof-of-concept formalization of the IRS federal tax forms

https://github.com/emmilco/us-tax-model
81•RGS1811•3d ago•13 comments

Show HN: Fraktur, a DJ mixing app in the browser

https://greenvitriol.com/posts/fraktur
23•janesconference•1d ago•1 comments

Show HN: Lasm – Write formally verified webapps in Lean for Node/serverless/edge

https://github.com/Millillion/lasm
36•lastmjs•1d ago•20 comments

Show HN: Readeck sync for Kobo's stock reader

https://github.com/fkaduk/kobodeck
2•fkdk•11h ago•0 comments

Show HN: Agent-arcade – Terminal games that pause when Claude Code/Codex is done

https://github.com/Kuldeep-045/agent-arcade
5•Kuldeep045•11h ago•2 comments

Show HN: Overtone – Transcribe, correct and cut captions for any screen shape

https://github.com/lonthq/overtone-captions
44•rvanderlinden•2d ago•10 comments

Show HN: I built a multiplayer game where you're an aerial fighter cat

https://catcopter.com
83•pawelwentpawel•1d ago•42 comments

Show HN: Deckdrill – Pimsleur-style audio drills from Anki decks, in your voice

https://www.deckdrill.app
6•pjacowski•1d ago•1 comments

Show HN: PicoPlayer – A tiny, open-source website for playing quality webgames

https://picoplayer.net/
12•popcar2•1d ago•8 comments

Show HN: Arken – Passwordless auth middleware using secp256k1 keys

https://github.com/zacharybenson/arken-protocol
12•zachbenson817•1d ago•0 comments

Show HN: SlideBySide – Present slides without sharing your screen

https://slidebyside.com/
81•denismenace•3d ago•36 comments
Open in hackernews

Show HN: Jointter – A daily word puzzle using dots and lines

https://www.jointter.com/
9•proy87•2h ago
Hello everyone. I’m a mathematician by training, and I love mathematical and logical puzzles and brain-teasers. Inspired by popular games like Sudoku and Wordle, I decided to come up with an engaging game of my own.

As it turns out, that’s not so easy! I had a few ideas, but beyond the core mechanics, a game also needs to be interesting and easy to explain — after all, nobody (including me) wants to spend a long time reading through rules.

Let’s start with the concept, which came to me quite spontaneously: what if we represented letters like the digits on a digital clock — using lines, with dots at the points where those lines intersect? For instance, the letter "E" would consist of four lines and six dots — three at the intersections and three at the ends of the lines.

It turns out that every letter of the Latin alphabet can be represented this way (with a minor caveat) using three rows of dots connected by some lines. This immediately presented a challenge: how do you represent O-shaped parts, like those found in "B", "O", or "R"? I decided not to use O-shapes, an use onl rectangles/squares. This "alphabet" is always displayed below the game board, so the player can see the letters.

The goal of the game is simple: you are presented with three rows of dots and a set of lines, and you have to figure out the word. A great feature of the game is that it’s possible to deduce the word in a single turn — all the necessary information is right there on the board, allowing you to arrive at the answer with certainty. And what if you can’t figure it out on the first try? You can enter a guess, much like in Wordle: if the lines from the entered word are part of the target word, they turn green; if not, they turn red. The same applies to the dots. As you play, more and more lines gradually appear...

Why provide some lines at the start? To uniquely identify a specific word — or a small set of words — from the dictionary. For example, you could select a configuration of lines that corresponds to only one word, like "RADIO", or perhaps to just two possible words, such as "WEIGH" and "WRONG".

The rules seem clear, but the mechanics — not so much. There are dots on the board; when I enter a word, I realize there aren't enough dots. What should I do? Initially, if the target word had 5 letters, I allowed users to enter 4- or 5-letter guesses, but that just confused players. So, I came up with a different solution: adding red dots for dots that aren't part of the target word.

Another drawback is that the game is somewhat skewed. Since letters are processed from left to right, the first letters are revealed more frequently than the last ones.

Then there’s the game design itself: should the target words be 5 letters long, or 6? Should a single board allow for multiple possible answers (like "WEIGH" and "WRONG"), or should it be limited to one — or perhaps more than two? Should the difficulty increase from Monday to Sunday? Currently, it’s set up this way: Monday is the easiest (a few 3-letter words), while Sunday is the hardest (more than two 7-letter words).

The tech stack is simple: I use Flask for the backend and Python for the algorithms; I wrote the algorithms myself. While the JS, HTML, and CSS were created with the help of AI.

I’d love for you to test the game and share what you like, what you don’t, and what could be improved.

Specifically, I’d like to know:

1. Is the game and its goal clear?

2. Is it fun to play, and what could be improved?

3. Would you share it with your friends?

I welcome any constructive criticism.

You can find the game at https://www.jointter.com/

It’s free and requires no registration.

Thank you very much.

Comments

yboris•1h ago
I would love a reset button so as to return to the state I found the puzzle in when I just loaded the page.
proy87•1h ago
Hello.

The button is added.

dofm•1h ago
Top tip: make your instructions actually readable.

Your LLM has used text with too low contrast, the absolutely pointless and annoying webkit-smoothing: anti-aliased, with text that is too small, cramped and squeezed into place.

People with eyes that are getting over forty years old will start to find this difficult to read.

You might want to consider making important instructions stand out, left-align the text, etc.

And then consider writing them with clarity and simplicity yourself rather than letting the LLM write them. The instructions are crucial. You should own that.

proy87•1h ago
Thank you very much.

I appreciate your feedback.

proy87•52m ago
Updated. Waiting for feedback.
pmx•46m ago
Tooltips keep spamming me covering up the actual game area. Spend more timing dismissing those than figuring it out
proy87•9m ago
Thank you. They are removed.
grandfunction•36m ago
I want to filter by dots on the sides. My brain and I are struggling!
proy87•17m ago
Sorry, I didn't understand.

Do you need another filter?

unsnap_biceps•34m ago
I found it really hard to understand how this worked at first. I feel that having a tutorial would be extremely useful, show a board, describe the problem, show picking a letter, undoing it, picking the right letter, etc.