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Show HN: Crnd – Cron daemon built for scripts and AI agents

3•ysm0622•2h ago
Been using cron forever but every modern alternative wants me to click through dashboards or write 50 lines of yaml. So I built crnd (pronounced "crowned") - just a CLI that does what you tell it.

Main thing: no prompts, no interactive wizards. Just commands that work in scripts.

`crnd schedule -n backup -s "0 2 * * *" -- rsync -a ~/docs ~/backup`

Thats it. Jobs live in a toml file that hot-reloads. Daemon runs as a real OS process, not some container abstraction.

Also supports one-time scheduled jobs which cron cant do: `crnd schedule -n reminder -i 5m -- say "stretch break"`

Built it mainly because I'm using AI coding agents and they kept choking on interactive prompts. Now they can just parse --json output and schedule stuff.

No cloud, no docker, no account. Just a single binary.

https://github.com/ysm-dev/crnd

Would love feedback - especially if youre automating things with scripts or agents.

Show HN: Ghidra MCP Server – 110 tools for AI-assisted reverse engineering

https://github.com/bethington/ghidra-mcp
172•xerzes•8h ago•44 comments

Show HN: Craftplan – I built my wife a production management tool for her bakery

https://github.com/puemos/craftplan
456•deofoo•2d ago•120 comments

Show HN: SlitherPong, a hybrid of the Snake and Pong video games

https://www.slitherpong.com/
3•AmbroseBierce•11m ago•0 comments

Show HN: Nocterm – Flutter-inspired TUI framework with hot reload (Dart)

https://nocterm.dev
3•norbert515•1h ago•1 comments

Show HN: Two-week creative lab for developers building with real-time AI video

https://daydream.live/interactive-ai-video-program
7•cmuir•1h ago•2 comments

Show HN: Mmdr – 1000x faster Mermaid rendering in pure Rust (no browser)

https://github.com/1jehuang/mermaid-rs-renderer/blob/master/README.md
2•jeremyh1•1h ago•0 comments

Show HN: Teaching AI agents to write better GraphQL

https://skills.sh/apollographql/skills
3•daleseo•1h ago•0 comments

Show HN: Instantly surface the assumptions behind a UI screenshot

https://app.usercall.co/ai-user-testing
3•junetic•2h ago•1 comments

Show HN: Crnd – Cron daemon built for scripts and AI agents

3•ysm0622•2h ago•0 comments

Show HN: Webhook Skills – Agent skills for webhook providers and best practices

https://github.com/hookdeck/webhook-skills
8•leggetter•2h ago•2 comments

Show HN: Zerobrew – Alternative to Homebrew

https://github.com/lucasgelfond/zerobrew
5•worldsavior•2h ago•3 comments

Show HN: OpenShears – I built an uninstaller because OpenClaw refuses to die

https://github.com/oswarld/openshears
2•haebom•3h ago•0 comments

Show HN: GitHub Browser Plugin for AI Contribution Blame in Pull Requests

https://blog.rbby.dev/posts/github-ai-contribution-blame-for-pull-requests/
60•rbbydotdev•1d ago•33 comments

Show HN: Ask your AI what your devs shipped this week

4•inferno22•49m ago•0 comments

Show HN: Octosphere, a tool to decentralise scientific publishing

https://octosphere.social/
57•crimsoneer•22h ago•28 comments

Show HN: Safe-now.live – Ultra-light emergency info site (<10KB)

https://safe-now.live
181•tinuviel•1d ago•91 comments

Show HN: Sandboxing untrusted code using WebAssembly

https://github.com/mavdol/capsule
75•mavdol04•1d ago•21 comments

Show HN: BPU – An embedded scheduler for stable UART pipelines

7•DenisDolya•3d ago•1 comments

Show HN: C discrete event SIM w stackful coroutines runs 45x faster than SimPy

https://github.com/ambonvik/cimba
61•ambonvik•23h ago•16 comments

Show HN: AI Blocker by Kiddokraft

https://kiddokraft.org/wiki?name=ai-blocker
2•Rezhe•4h ago•0 comments

Show HN: Find better round trips – TSP challenge

https://tsp-game.graphhopper.com/
3•oblonski•5h ago•0 comments

Show HN: Latex-wc – Word count and word frequency for LaTeX projects

https://www.piwheels.org/project/latex-wc/
9•sethbarrettAU•1d ago•4 comments

Show HN: Ec – a terminal Git conflict resolver inspired by IntelliJ

https://github.com/chojs23/ec
12•neozz•14h ago•0 comments

Show HN: PII-Shield – Log Sanitization Sidecar with JSON Integrity (Go, Entropy)

https://github.com/aragossa/pii-shield
16•aragoss•22h ago•9 comments

Show HN: Adboost – A browser extension that adds ads to every webpage

https://github.com/surprisetalk/AdBoost
123•surprisetalk•2d ago•127 comments

Show HN: I built "AI Wattpad" to eval LLMs on fiction

https://narrator.sh/llm-leaderboard
28•jauws•22h ago•31 comments

Show HN: Yutovo – visual online and desktop calculator inside a text editor

https://yutovo.com
3•denprog•8h ago•0 comments

Show HN: difi – A Git diff TUI with Neovim integration (written in Go)

https://github.com/oug-t/difi
44•oug-t•1d ago•47 comments

Show HN: Inverting Agent Model (App as Clients, Chat as Server and Reflection)

https://github.com/RAIL-Suite/RAIL
19•ddddazed•1d ago•2 comments

Show HN: OpenClaw Assistant – Replace Google Assistant with Any AI

https://github.com/yuga-hashimoto/OpenClawAssistant
2•YugaHashimoto•11h ago•0 comments