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Show HN: Jigsaw Designer – Generate SVG jigsaw puzzles in seconds, not hours

https://jigsawdesigner.com/en
3•jigsawdesigner•2h ago

Comments

jigsawdesigner•2h ago
Hi HN! I'm the developer of Jigsaw Designer.

I built this because I saw how painful it was for makers to manually draw puzzle paths in Illustrator/Inkscape—it literally takes hours to get the interlocking tabs right. I wanted a tool that could do this in seconds.

Tech Stack: It's a native macOS/iPadOS app written in Swift and C++.

Core Algorithm: The puzzle generation is powered by a custom C++ engine using Voronoi diagrams and Bezier optimization to create organic, non-repetitive shapes. Rendering: Highly optimized generic C++ geometry converted to native SVG paths. Output: The generated SVGs are strictly optimized for laser cutters (LightBurn, Glowforge) with clean, continuous paths to minimize cutting time. I'd love to hear your feedback, especially if you are into laser cutting or puzzle design! Happy to answer any technical questions.

Unofficial CPython JIT performance dashboard

https://doesjitgobrrr.com/
1•lumpa•34s ago•0 comments

I deleted the database and rebuilt my portfolio tracker to be local-first

https://www.pocketportfolio.app/
1•pocketportfolio•41s ago•0 comments

FreeBSD 15.0-Release Release Notes

https://www.freebsd.org/releases/15.0R/relnotes/
1•ksec•2m ago•0 comments

Miki Eleta Clockmaker

https://www.thenakedwatchmaker.com/people-miki-eleta
1•ClaudeGustav2•10m ago•0 comments

How the 'Brussels Effect' Backfired

https://www.ft.com/content/abc3002e-a7be-48e2-8197-aeddf937afec
1•mohi-kalantari•12m ago•0 comments

The Depth Illusion

https://gm-dev.ch/surface-grafting
1•roko_•13m ago•0 comments

200k Tokens Is Plenty

https://ampcode.com/200k-tokens-is-plenty
1•handfuloflight•14m ago•0 comments

Chunked Transfer Encoding – when content length is not known

https://pinggy.io/blog/understanding_content_length_header_and_chunked_encoding/
1•ghoshbishakh•20m ago•0 comments

NotebookLM Tools – Tags, Backup/Restore Sources and Bulk Source Fixer

https://old.reddit.com/r/notebooklm/comments/1pn2yip/notebooklm_tools_tags_backuprestore_sources_...
1•trungpv1601•21m ago•0 comments

Grok Is Glitching and Spewing Misinformation About the Bondi Beach Shooting

https://gizmodo.com/grok-is-glitching-and-spewing-misinformation-about-the-bondi-beach-shooting-2...
2•tobr•26m ago•1 comments

Show HN: I built a simulator to teach PMs why they shouldn't interrupt migration

https://apmcommunication.com
1•pingananth•29m ago•0 comments

Show HN: Generate Passwords from Regex Constraints

https://gruhn.github.io/regex-utils/password-generator.html?constraints=%5E.%7B16%2C32%7D%24%0A%5...
2•ngruhn•31m ago•1 comments

2025 Open Models Year in Review

https://www.interconnects.ai/p/2025-open-models-year-in-review
1•Philpax•33m ago•0 comments

Show HN: StreamGate – A lock-free observability proxy in Go

https://github.com/sashu2310/streamgate
2•sandeepk235•35m ago•2 comments

Nth Country Experiment

https://en.wikipedia.org/wiki/Nth_Country_Experiment
1•hexhowells•35m ago•0 comments

Smooth Scrolling on the Sega Master System

https://bumbershootsoft.wordpress.com/2025/12/13/smooth-scrolling-on-the-sega-master-system/
1•rcarmo•39m ago•0 comments

Forget the far right. The kids want a 'United States of Europe.'

https://www.politico.eu/article/united-states-of-europe-online-propaganda-social-media-memes/
4•saubeidl•52m ago•1 comments

What's Wrong with Kubernetes Today

https://www.devzero.io/blog/whats-wrong-with-kubernetes-today
5•Liriel•53m ago•1 comments

Show HN: Find the Right Game Engine – Godot, Unity, Unreal, and More

https://gameenginehub.com
1•neotanp•54m ago•0 comments

The Graffiti Question

https://www.guernicamag.com/the-graffiti-question/
1•bryanrasmussen•54m ago•0 comments

Rust's v0 mangling scheme in a nutshell

https://purplesyringa.moe/blog/rusts-v0-mangling-scheme-in-a-nutshell/
1•todsacerdoti•56m ago•0 comments

Norton's dome – A paradox in Newtonian physics

https://en.wikipedia.org/wiki/Norton%27s_dome
1•ColinWright•56m ago•0 comments

Props for Web Components

https://old.reddit.com/r/javascript/comments/1pj4ros/props_for_web_components/
2•MzHN•58m ago•2 comments

Connect a U.2 Server SSD to Your PC's USB Port with This Adapter (2021)

https://www.tomshardware.com/news/connect-a-u2-ssd-to-your-pcs-usb-port-with-this-adapter
1•walterbell•59m ago•0 comments

CS 108: Using and Understanding AI

https://docs.google.com/document/d/1idtNbEqMq644sbaK8-6rWYGrNEicNZyCqwp9rMU8hEM/edit?tab=t.0
1•jdcampolargo•59m ago•0 comments

Font AI – AI Font Generator

https://www.font-ai.com/
1•maltsev•1h ago•0 comments

I designed the circuit board for tinyCore [video]

https://www.youtube.com/watch?v=3Nd6zynJclk
1•cassianoleal•1h ago•0 comments

How (not) to train your reader

https://rikverse2020.rikweb.org.uk/blog/how-not-to-train-your-reader/
1•rikroots•1h ago•0 comments

Show HN: Naiman.ai – AI Powered Feed

https://www.naiman.ai/
1•usernameis42•1h ago•0 comments

Tenex: Terminal multiplexer for AI coding agents

https://github.com/Mockapapella/tenex
1•handfuloflight•1h ago•0 comments