HN Reader

Show HN: OSle – A 510 bytes OS in x86 assembly (github.com)

48 points by shikaan 5h ago 14 comments

Show HN: Immediate-mode GUIs in C# – I wrote an eBook on using Dear ImGui in C# (github.com)

2 points by ImAxel 18m ago 0 comments

Show HN: Open-Launch – First Complete Open-Source Alternative to ProductHunt (open-launch.com)

3 points by drdruide 45m ago 0 comments

Show HN: Kubetail – Real-time log search for Kubernetes (github.com)

94 points by andres 14h ago 28 comments

Show HN: I Built Tabtix: A POS and QR Ordering System for Hotels and Restaurants

2 points by tabtix 1h ago 0 comments

Show HN: Roons – Mechanical Computer Kit (whomtech.com)

173 points by uncial 19h ago 28 comments

Show HN: Hyperparam: OSS tools for exploring datasets locally in the browser (hyperparam.app)

61 points by platypii 21h ago 20 comments

Show HN: Dcup – 100% Open-Source RAG-as-a-Service for AI-Powered Search (dcup.dev)

3 points by aliamer99 3h ago 0 comments

Show HN: Robot Unlock – an open-ended programming game/zachlike (store.steampowered.com)

35 points by adrianton3 19h ago 10 comments

Show HN: Maybe – The personal finance app for everyone (maybefinance.com)

10 points by constantinum 9h ago 2 comments

Show HN: Compare PC Monitors (comparepcmonitors.com)

2 points by mjcurl 4h ago 0 comments

Show HN: Mini Hex – Convert 6-digit colors into their closest 3-digit equivalent (dannyduplex.com)

2 points by dduplex 4h ago 1 comments

Show HN: Create your own finetuned AI model using Google Sheets (promptrepo.com)

130 points by QueensGambit 1d ago 41 comments

Show HN: ART – a new open-source RL framework for training agents (github.com)

112 points by kcorbitt 1d ago 12 comments

Show HN: An MCP server for understanding AWS costs

116 points by StratusBen 6d ago 23 comments

Show HN: Kexa.io – Open-Source IT Security and Compliance Verification

79 points by patrick4urcloud 1d ago 15 comments

Show HN: Convert Large CSV/XLSX to JSON or XML in Browser (csvforge.com)

39 points by Botlabs 1d ago 13 comments

Show HN: AgenticSeek – Self-hosted alternative to cloud-based AI tools (github.com)

118 points by Fosowl 5d ago 18 comments

Show HN: I built a hardware processor that runs Python (runpyxl.com)

973 points by hwpythonner 3d ago 264 comments

Show HN: Sim Studio – Open-Source Agent Workflow GUI (github.com)

191 points by waleedlatif1 3d ago 57 comments

Show HN: An interactive demo of QR codes' error correction (qris.cool)

107 points by Xiione 6d ago 11 comments

Show HN: Beatsync – perfect audio sync across multiple devices (github.com)

430 points by freemanjiang 2d ago 125 comments

Show HN: A Chrome extension that will auto-reject non-essential cookies (blog.bymitch.com)

291 points by mitch292 2d ago 165 comments

Show HN: Learn You Galois Fields for Great Good (xorvoid.com)

3 points by xorvoid 13h ago 0 comments

Show HN: Web-eval-agent – Let the coding agent debug itself (github.com)

84 points by neversettles 3d ago 12 comments

Show HN: HN top 30 summarized by Gemini 2.5 Pro (tinysums.ai)

5 points by mbm 15h ago 12 comments

Show HN: Heart Rate Zones Plus – The first iOS app I developed (apps.apple.com)

99 points by tobias5 3d ago 81 comments

Show HN: I made an AI that generates SVG logos (vanlogo.co)

9 points by krm01 22h ago 2 comments

Show HN: Flowcode – Turing-complete visual programming platform (app.getflowcode.io)

172 points by gabigrin 3d ago 80 comments

Show HN: I486SX_soft_FPU – Software FPU Emulator for NetBSD 10 on 486SX (github.com)

116 points by mezantrop 4d ago 42 comments

Show HN: Sriracha Imageboard and Forum (codeberg.org)

3 points by tslocum 18h ago 0 comments

Show HN: Lichen – Manage and create code licenses on the CLI and with TOML (github.com)

6 points by philocalyst 18h ago 2 comments

Show HN: Tgfeed – convert public Telegram channels into RSS or Atom feeds (github.com)

4 points by nDmitry 19h ago 2 comments

Show HN: Runnem – A CLI to manage local services with screen and YAML (runnem.com)

2 points by dsmurrell 19h ago 0 comments

Show HN: A pure WebGL image editor with filters, crop and perspective correction (github.com)

241 points by axelMI 3d ago 86 comments

Show HN: Self-Hosted HTTPS Tunnel in 300 LoC with Go, Caddy, and Cloudflare (nexo.sh)

10 points by nexo-v1 1d ago 0 comments

Show HN: I built an AI that turns GitHub codebases into easy tutorials (github.com)

920 points by zh2408 12d ago 172 comments

Show HN: Anyone.com – Fixing the broken real estate transaction workflow (inman.com)

5 points by rsardeha 21h ago 0 comments

Show HN: My self-written hobby OS is finally running on my vintage IBM ThinkPad (github.com)

569 points by joexbayer 5d ago 116 comments

Show HN: Daily Jailbreak – Prompt Engineer's Wordle (vaultbreak.ai)

130 points by ericlmtn 4d ago 64 comments

Show HN: A Common Lisp implementation in development, supports ASDF (savannah.nongnu.org)

96 points by andreamonaco 4d ago 60 comments

Show HN: I created snapDOM to capture DOM nodes as images with exceptional speed (github.com)

119 points by tinchox6 4d ago 42 comments

Show HN: I made a web-based, free alternative to Screen Studio (screenrecorder.me)

457 points by johnwheeler 4d ago 114 comments

Show HN: An AI tool that generates celebrity voices with matching lip sync (celebvoicify.com)

6 points by NullPointerWin 1d ago 2 comments

Show HN: Remote-Controlled IKEA Deathstar Lamp (gitlab.com)

290 points by sephalon 5d ago 55 comments

Show HN: Autarkie – Instant grammar fuzzing using Rust macros (github.com)

41 points by r9295 3d ago 4 comments

Show HN: I Cut GitHub Notification Noise by over 90% Using Gmail Filters (tglyn.ch)

4 points by tomglynch 1d ago 0 comments

Show HN: GS-Calc – A modern spreadsheet with Python integration (citadel5.com)

112 points by jpiech 6d ago 21 comments

Show HN: Bhvr, a Bun and Hono and Vite and React Starter (bhvr.dev)

125 points by stevedsimkins 5d ago 95 comments

Show HN: Colanode, open-source and local-first Slack and Notion alternative (github.com)

145 points by hakanshehu 8d ago 49 comments

Earth's oceans used to be green, and they could turn purple next

30 Brajeshwar 3 4/27/2025, 3:16:51 PM newatlas.com ↗

Comments (3)

wizzwizz4 · 4d ago
The sentence explaining "purple" does not make sense:

> For instance, should levels of sulfur increase, the oceans may appear purple due to intense volcanic activity and low oxygen in the atmosphere.

Increased levels of sulfur causing volcanic activity? Michael Crichton's words come to mind:

> I call these the "wet streets cause rain" stories. Paper's full of them.

smegger001 · 4d ago
well we actually would have wine dark seas then.

(https://en.wikipedia.org/wiki/Wine-dark_sea)

aetherson · 4d ago
Dammit, came here to say that.