Show HN: SafeRun – Replay debugging and inline prevention for AI agents 3 https://ift.tt/sOhclQD

Show HN: SafeRun – Replay debugging and inline prevention for AI agents 3 Background on why we built Replay first instead of validation: [ https://ift.tt/3SjWA1G... ] Working SDK in Python and TypeScript. Sub-50ms p95 on the check-action API. Currently onboarding the first design partners. Happy to answer questions in the comments. May 21, 2026 at 12:08AM

Show HN: Remote Job Board https://ift.tt/kH9TvNg

Show HN: Remote Job Board Built a job board for best remote jobs from top private and public companies. no signup or middleman, apply directly https://ift.tt/etr5RVE May 20, 2026 at 08:52PM

Show HN: I reverse engineered Apple's video wallpapers https://ift.tt/rnN584p

Show HN: I reverse engineered Apple's video wallpapers Ever since Apple introduced their video wallpapers I wanted to be able to put custom videos there. I decided to reverse engineer and see what I can do. I built Phosphene to sell it, but the existing competitors were polished enough that the time it would have taken to catch up wasn't going to pay off. So I'm open-sourcing it. WallpaperExtensionKit.framework is what powers macOS wallpapers. It controls what’s shows in the Settings app. It took a lot of trial and error to replicate the behavior, but the result is that your custom wallpapers appear alongside everything else. I wanted to have an “add” button there too, but I couldn’t find a way to do so, so there’s a companion app that will put your video where it needs to be. Unlike Apple's Aerials, the video keeps playing on the desktop (not just the lock screen). The renderer drives AVSampleBufferDisplayLayer directly with PTS-offset gapless looping, and pauses or downshifts based on thermal state, battery level, brightness, and window occlusion. It’s free and works well. https://ift.tt/1cmM90F May 20, 2026 at 08:54PM

Show HN: IResearch – C++ search that beat Lucene and Tantivy on their benchmark https://ift.tt/dXYzNSn

Show HN: IResearch – C++ search that beat Lucene and Tantivy on their benchmark https://ift.tt/WouRU0w May 20, 2026 at 07:21AM

Show HN: Typeset sitelen pona and copy a PNG (for toki pona speakers) https://ift.tt/EPUOjdq

Show HN: Typeset sitelen pona and copy a PNG (for toki pona speakers) https://sitelen.vercel.app/ May 17, 2026 at 01:41PM

Show HN: Javalamp – A glowing terminal screensaver that keeps your Mac awake https://ift.tt/0rq9maY

Show HN: Javalamp – A glowing terminal screensaver that keeps your Mac awake https://ift.tt/v1PRi4u May 20, 2026 at 12:24AM

Show HN: Closed Rings – A CLI-first time tracker for developers https://ift.tt/zdMJtcu

Show HN: Closed Rings – A CLI-first time tracker for developers 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. https://ift.tt/xfawYqo May 19, 2026 at 02:29AM