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Show HN: I built Sonars in 3 weeks to see if AI coding is useful for my company

https://sonars.dev
3•JasperBekkers•2h ago
I've been programming since I was 11. I'm 38 now.

In those 27 years, I've worked on game engines at EA DICE, done rendering research at OTOY and Embark, and now run a graphics R&D company that does work for AMD, Intel, and Meta. I've seen plenty of new tools come and go.

When AI coding tools started blowing up, I needed to figure out: is this something my company should invest in, or something we can safely ignore for another few years?

I decided to settle it: go all-in for a few weeks. Build something real, outside of our existing codebase, with agentic AI—not just autocomplete, but actually letting Claude Opus write files, run commands, and commit code.

3 weeks later, I have my answer.

Sonars went from zero to launch in 3 weeks. One developer. Pure agentic AI. And once the core was working, I used Sonars to build Sonars.

The problem I kept hitting with other tools: Claude made changes directly in my working directory. One experimental prompt and my branch was a disaster—half-finished features, broken tests, merge conflicts with myself.

The fix was obvious in hindsight: Git worktrees. Every AI session in Sonars runs in complete isolation. Claude can go wild—read files, write code, run tests, commit changes—and your main branch stays untouched until you explicitly merge.

Features: - Claude reads files, writes code, runs terminal commands, commits changes - Every session isolated in a Git worktree - Real-time streaming with extended thinking mode - Visual diff viewer with syntax highlighting - Native Rust + Dioxus app

Tech stack: Rust + Dioxus (frontend), Axum (backend), SQLite + PostgreSQL, gix (pure Rust Git).

Free tier available: https://sonars.dev

After 27 years and shipping game engines, I don't say this lightly: this is the most productive I've ever been. The answer to my original question? This isn't something to ignore.

Happy to answer questions about the architecture, the worktree approach, or what building Rust with agentic AI is actually like.

I made a simple agent for PR reviews. Don't use it

https://xeiaso.net/blog/2026/reviewbot/
1•xena•1m ago•0 comments

Show HN: Fetch – A minimalistic and super fast macOS app launcher

https://github.com/hackerbirds/fetch
1•hackerbirds•7m ago•0 comments

Show HN: Tmp.tf – Cross-device text transfer with just a channel name, no signup

https://tmp.tf
1•iamlin•7m ago•1 comments

BowMac Sign

https://en.wikipedia.org/wiki/BowMac_sign
1•kerim-ca•8m ago•0 comments

Show HN: Web CLI v0.2.4 – Added YAML/JSON validators with auto-fix

https://github.com/pozgo/web-cli
1•polinux•10m ago•0 comments

Show HN: Neurop Forge – AI executes verified blocks instead of writing code

https://github.com/Louw115/neurop-forge
1•LBWasserman•13m ago•0 comments

Chasing mythical creatures: a critique of entrepreneurship's unicorns obsession

https://www.sciencedirect.com/science/article/pii/S2352673422000634
1•wslh•13m ago•0 comments

Statement by Federal Reserve Chair Jerome F. Powell [video]

https://www.youtube.com/watch?v=KckGHaBLSn4
76•sprawl_•17m ago•22 comments

Maybe the database got it right

https://fhur.me/posts/2026/maybe-the-database-got-it-right
1•fernandohur•20m ago•0 comments

Jerome Powell Responds

https://www.federalreserve.gov/newsevents/speech/powell20260111a.htm
18•0xedb•20m ago•1 comments

The Living Internet

https://www.livinginternet.com
2•hkhn•22m ago•0 comments

Internet History – One Page Summary

https://www.livinginternet.com/i/ii_summary.htm
2•hkhn•23m ago•1 comments

Additively Manufactured Dragonfly-Inspired Wings for Flapping Vehicles

https://www.mdpi.com/2313-7673/10/12/849
1•PaulHoule•24m ago•0 comments

Profession by Isaac Asimov (1957)

https://web.archive.org/web/20201109034130/https://www.abelard.org/asimov.php
2•AndyKelley•25m ago•0 comments

Defense Secretary tours SpaceX missile startup

https://www.latimes.com/business/story/2026-01-10/secretary-of-defense-pete-hegseth-tours-long-be...
1•spacedoors•26m ago•0 comments

Criminal charges against Fed Chairman for defying POTUS wishes

https://www.nytimes.com/2026/01/11/us/politics/jerome-powell-fed-inquiry-trump.html
9•Spooky23•27m ago•1 comments

The U.S. Government Just Followed Through on Its Ban of DJI Drones

https://www.popularmechanics.com/technology/robots/a69937082/us-bans-new-foreign-made-drones/
3•RyanShook•27m ago•0 comments

Tintcd: Directory-aware terminal theming for PowerShell. CD, but colorful

https://github.com/ymyke/tintcd
1•thunderbong•30m ago•1 comments

The Good Club

https://www.thegoodclub.com
1•sans_souse•31m ago•0 comments

Show HN: 2k or Nothing – A Social Platform Dedicated to Long-Form Content

https://2k-or-nothing.com/feed
1•Lbesecker195•33m ago•0 comments

Jon Skeet Facts

https://meta.stackexchange.com/questions/9134/jon-skeet-facts
2•ravenical•35m ago•1 comments

OAuth 2.1 Dynamic Client Registration for AWS BedrockAgentCore Gateway

https://github.com/orgs/stache-ai/discussions/5
1•Jtpenny•35m ago•0 comments

Serverless RAG and MCP on AWS with S3Vectors and Agentcore

https://github.com/orgs/stache-ai/discussions/4
1•Jtpenny•35m ago•0 comments

Reverse-engineering another Ursa Major classic: the StarGate 323

https://www.temeculadsp.com/journal/understanding-timing-circuits
1•johnwheeler•38m ago•0 comments

Show HN: AeroTag – Tag-based workspace management for AeroSpace (macOS)

https://typester.dev/blog/2026/01/11/tag-based-workspace-management-with-aerospace
1•typester•40m ago•1 comments

Hubble Telescope's Final Countdown: Could It Disappear Sooner Than Expected?

https://dailygalaxy.com/2026/01/hubble-countdown-could-it-disappear-sooner/
2•TMWNN•45m ago•0 comments

Token-Count-Based Batching: Faster, Cheaper Embedding Inference for Queries

https://www.mongodb.com/company/blog/engineering/token-count-based-batching-faster-cheaper-embedd...
1•fzliu•47m ago•0 comments

Tuning Random Generators: Property-Based Testing as Probabilistic Programming [pdf]

https://web.cs.ucla.edu/~todd/research/oopsla25a.pdf
2•todsacerdoti•49m ago•0 comments

Show HN: Built a course on buying small businesses – validating demand

https://smalldealschool.com/
1•boring_million•51m ago•1 comments

A $400k payout is putting prediction markets in the spotlight

https://apnews.com/article/prediction-markets-maduro-trades-1f47e737f915fff00c57f03e7390b41f
4•petethomas•54m ago•0 comments