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Show HN: Closed Rings – A CLI-first time tracker for developers

https://closedrings.sh/en
2•samacs•53m ago
Hi, HN. I built Closed Rings. A developer-friendly, AI-agent-first time tracker that integrates with my workflow. I wanted something that lives in my terminal and my coding agent.

You can run `rings start "OAuth 2.0" -m "Start integrating OAuth 2.0"` when you start a new task and `rings close` when you're done with your current work. In between, it tracks context switches. You get a stand-up-ready summary, a focus report (longest focus block, number of context switches, time per project), and an export grouped by project or day.

You can also ask your AI agent: _Start tracking "OAuth 2.0"._ Or track retroactively: _Track a 1-hour meeting I forgot to track this morning at 8._ The MCP has a comprehensive set of tools.

This is primarily for consultants or freelance developers who want to start tracking their time right away. The CLI is pretty straightforward, and the MCP allows you to do everything you can do in the dashboard.

Want to integrate it in your own systems? Just create an API key and start communicating with the API.

The stack is pretty simple: Ruby on Rails (MCP + API), Go (CLI).

The pricing is also pretty flat: $7/mo ($60/year).

My first product. Feedback welcome.

The last six months in LLMs in five minutes

https://simonwillison.net/2026/May/19/5-minute-llms/
220•yakkomajuri•4h ago•111 comments

Codex-maxxing

https://jxnl.co/writing/2026/05/10/codex-maxxing/
33•dnw•1h ago•20 comments

Click (2016)

https://clickclickclick.click/
262•andrewzeno•7h ago•65 comments

Turn your Android phone into a ham radio transceiver

https://www.kv4p.com/
38•krupan•2d ago•3 comments

Anyone on the Internet Can Ring Your Doorbell

https://www.abgeo.dev/blog/anyone-can-ring-your-doorbell
71•jrdres•2d ago•27 comments

Regex Chess: A 2-ply minimax chess engine in 84,688 regular expressions

https://nicholas.carlini.com/writing/2025/regex-chess.html
84•surprisetalk•4d ago•14 comments

PyTorch Landscape

https://pytorch.landscape2.io
16•salamo•1h ago•0 comments

Anthropic acquires Stainless

https://www.anthropic.com/news/anthropic-acquires-stainless
414•tomeraberbach•13h ago•287 comments

Pope Leo XIV’s first encyclical Magnifica humanitas to be published May 25

https://www.vaticannews.va/en/pope/news/2026-05/pope-leo-xiv-first-encyclical-magnifica-humanitas...
184•cucho•7h ago•105 comments

Cursor Introduces Composer 2.5

https://cursor.com/blog/composer-2-5
98•asar•13h ago•54 comments

1024000^2 Blocks, 2B2T Minecraft Server World Download Project, and Discoveries

https://github.com/2b2tplace/1m_release
131•exploraz•16h ago•80 comments

We stopped AI bot spam in our GitHub repo using Git's –author flag

https://archestra.ai/blog/only-responsible-ai
454•ildari•14h ago•209 comments

Peter Neumann has died

https://www.tuhs.org/pipermail/tuhs/2026-May/033748.html
19•pabs3•3h ago•1 comments

Peter Salus has died

https://www.tuhs.org/pipermail/tuhs/2026-May/033750.html
104•speckx•3h ago•8 comments

When can the C++ compiler devirtualize a call?

https://quuxplusone.github.io/blog/2021/02/15/devirtualization/
47•lionkor•1d ago•10 comments

Hyperpolyglot Lisp: Common Lisp, Racket, Clojure, Emacs Lisp

https://hyperpolyglot.org/lisp
149•veqq•10h ago•35 comments

Show HN: Number Gacha, a gacha game distilled to its essence

https://isabisabel.com/gacha/
115•babel16•5d ago•48 comments

We let AIs run radio stations

https://andonlabs.com/blog/andon-fm
223•lukaspetersson•12h ago•193 comments

Show HN: Hsrs – Type-Safe Haskell Bindings Generator for Rust

https://github.com/harmont-dev/hsrs
9•suis_siva•2h ago•0 comments

Make ZIP files smaller with ZIP Shrinker

https://evanhahn.com/make-zip-files-smaller-with-zip-shrinker/
3•zdw•2d ago•0 comments

Project Glasswing: what Mythos showed us

https://blog.cloudflare.com/cyber-frontier-models/
319•Fysi•16h ago•123 comments

LLMCap – A proxy that hard-stops LLM API calls when you hit a dollar cap

https://www.llmcap.io/
7•cfaruk•2h ago•2 comments

AI eats the world (Spring 26) [pdf]

https://static1.squarespace.com/static/50363cf324ac8e905e7df861/t/6a0af5d0484fbf5fe9a7743e/177910...
196•topherjaynes•17h ago•109 comments

Elon Musk has lost his lawsuit against Sam Altman and OpenAI

https://techcrunch.com/2026/05/18/elon-musk-has-lost-his-lawsuit-against-sam-altman-and-openai/
897•nycdatasci•12h ago•447 comments

Two computers, one monitor, zero fiddling (2025)

https://alexplescan.com/posts/2025/08/16/kvm/
193•ankitg12•3d ago•113 comments

Alignment pretraining: AI discourse creates self-fulfilling (mis)alignment

https://arxiv.org/abs/2601.10160
46•anigbrowl•8h ago•17 comments

Why is it called Kent House?

https://diamondgeezer.blogspot.com/2026/05/kent-house.html
10•susam•2d ago•1 comments

Earth's Radio Bubble: Every signal we've ever sent into space

https://www.thescientificdrop.com/2026/05/earths-radio-bubble-every-signal-weve.html
61•jonbaer•21h ago•32 comments

Agora-1: The Multi-Agent World Model

https://odyssey.ml/introducing-agora-1
101•olivercameron•11h ago•18 comments

Show HN: Files.md – Open-source alternative to Obsidian

https://github.com/zakirullin/files.md
610•zakirullin•16h ago•297 comments