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Show HN: SMTP Tunnel – A SOCKS5 proxy disguised as email traffic to bypass DPI

https://github.com/x011/smtp-tunnel-proxy
66•lobito25•10h ago•18 comments

Show HN: TCP chat server written in C# and .NET 9, used in the terminal

https://github.com/Sieep-Coding/simple-chat-csharp
20•sieep•4d ago•8 comments

Show HN: VaultSandbox – Test your real MailGun/SES/etc. integration

https://vaultsandbox.com/
32•vaultsandbox•21h ago•3 comments

Show HN: Make audio loops online

https://makeloops.online/
40•bilalba•1d ago•10 comments

Show HN: Mantic.sh – A structural code search engine for AI agents

https://github.com/marcoaapfortes/Mantic.sh
67•marcoaapfortes•21h ago•28 comments

Show HN: A RAM-only, end-to-end encrypted P2P terminal chat in Python

https://github.com/diorwave/cmd-chat
2•isanoguchi•1h ago•0 comments

Show HN: 48-digit prime numbers every git commit

https://textonly.github.io/git-prime/
57•keepamovin•5d ago•45 comments

Show HN: Stash – Sync Markdown Files with Apple Notes via CLI

https://github.com/shakedlokits/stash
64•shuka•18h ago•20 comments

Show HN: Prism.Tools – Free and privacy-focused developer utilities

https://blgardner.github.io/prism.tools/
354•BLGardner•22h ago•98 comments

Show HN: Foundertrace – chain of YC startups founded by its employees

https://foundertrace.com/
38•loondri•3d ago•10 comments

Show HN: GPU Cuckoo Filter – faster queries than Blocked Bloom, with deletion

https://github.com/tdortman/cuckoo-filter
28•tdortman•12h ago•2 comments

Show HN: Jax-JS, array library in JavaScript targeting WebGPU

https://ss.ekzhang.com/p/jax-js-an-ml-library-for-the-web
78•ekzhang•16h ago•21 comments

Show HN: llmgame.ai – The Wikipedia Game but with LLMs

https://www.llmgame.ai
23•jmcallister•1d ago•19 comments

Show HN: Tailsnitch – A security auditor for Tailscale

https://github.com/Adversis/tailsnitch
268•thesubtlety•1d ago•28 comments

Show HN: 25 years of house prices in England and Wales

https://housepricedashboard.co.uk/
12•rowanajmarshall•12h ago•6 comments

Show HN: DoNotNotify – Log and intelligently block notifications on Android

https://donotnotify.com/
335•awaaz•1d ago•158 comments

Show HN: Symbolic Circuit Distillation: prove program to LLM circuit equivalence

https://github.com/neelsomani/symbolic-circuit-distillation
16•nsomani•14h ago•2 comments

Show HN: I built "Google" for searching Shadcn blocks on the web

https://shoogle.dev/
19•ali-dev•5d ago•3 comments

Show HN: DDL to Data – Generate realistic test data from SQL schemas

51•ddltodata•22h ago•26 comments

Show HN: Tera.fm – A calm, radio-style way to listen to today's tech news

https://tera.fm
3•digi_wares•5h ago•1 comments

Show HN: Finding similarities in New Yorker covers

https://shoplurker.com/labs/newyorker-covers/
17•tkp-415•14h ago•7 comments

Show HN: Open-source AI workflows with read-only auth scopes

https://github.com/seer-engg/seer
11•akshay326•4d ago•0 comments

Show HN: I built a tool to create AI agents that live in iMessage

https://tryflux.ai/
7•danielsdk•3d ago•4 comments

Show HN: Server-rendered multiplayer games with Lua (no client code)

https://cleoselene.com/
78•brunovcosta•2d ago•58 comments

Show HN: ccrider - Search and Resume Your Claude Code Sessions – TUI / MCP / CLI

https://github.com/neilberkman/ccrider
16•nberkman•20h ago•4 comments

Show HN: Funboxie – Free printables and coloring pages for kids

https://www.funboxie.com
2•chynnahe•8h ago•1 comments

Show HN: A simulator for engineers transitioning from IC to management

https://apmcommunication.com/scenario/backchannel-vp
72•pingananth•1d ago•93 comments

Show HN: Sidestream – an AI chat app with a side of insight

https://github.com/ericbrandon/sidestream
5•EricBrandon•14h ago•2 comments

Show HN: WOLS – Open standard for mushroom cultivation tracking

https://github.com/wemush/open-standard
39•mbeacom•1d ago•2 comments

Show HN: I replaced Beads with a faster, simpler Markdown-based task tracker

https://github.com/wedow/ticket
80•wild_egg•2d ago•48 comments
Open in hackernews

Show HN: Onyx DR – Data rooms that surface investor and document signals

https://onyxdataroom.com
5•ykaps•1d ago
Hi HN!

I'm one of the people building ONYX Data Rooms.

We started working on this during our own fundraise and noticed that many data rooms focus on later-stage fundraising processes and budgets, rather than the needs of early- and growth-stage founders.

What stood out to us the most wasn't the lack of data, but the lack of clarity. As founders, we could see that documents were being opened, but it was hard to understand: - which investors are genuinely engaged vs. just clicking through - which documents are getting attention vs. being skipped - where diligence is slowing down or generating questions

ONYX focuses on making that clearer: - unlimited data rooms and users - analytics that highlight which investors are active and which documents are being read - built-in Q&A so questions stay connected to the relevant files

The goal isn't to add more metrics, but to help founders prioritize follow-ups and know where to spend time during a raise.

If you want to poke around: https://onyxdataroom.com

Happy to answer questions or hear how others handle diligence and investor signaling today.

Thanks!