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Show off what you've built!

submission guidelines

For showing off projects and launching products.

Please make posts community-driven and not overly corporate or salesy.

Typically it is for showing off your thing or your company's thing. You can however, show off someone else's thing, but just make it clear it's theirs and not yours.

Don't just use this tag to share posts or tutorials your proud of — this is really for projects.

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Jonathan Peterson

Mar 28

I tapped into a public WebSocket feed and found a consistent pricing gap on Polymarket hiding in plain sight.

#showdev #blockchain #cryptocurrency #web3

3 min read

Mar 9

I built a blockchain where quantum computers have no mining advantage — here is how it works

#showdev #blockchain #cryptocurrency #security

6 min read

Cover image for I Built an Open Protocol Standard for Air Quality Data — And Anyone Can Run a Node in 3 Minutes

BXP

Mar 9

I Built an Open Protocol Standard for Air Quality Data — And Anyone Can Run a Node in 3 Minutes

#showdev #data #iot #opensource

3 min read

Dre

Mar 5

I built a live interactive attack demo — watch real prompt injection happen and get blocked in real time

#showdev #ai #opensource #security

1 min read

Cover image for castkit: CLI Demo Videos From One Command

Dmitry (Dee) Kargaev

Mar 18

castkit: CLI Demo Videos From One Command

#showdev #automation #cli #rust

8 min read

Cover image for The Annoying Middle Ground of Website Forms

Mar 6

The Annoying Middle Ground of Website Forms

#showdev #webdev #forms #saas

2 min read

Abdirahman Abdi

Mar 9

I built an AI lead qualification engine from Nairobi with zero funding

#showdev #ai #saas #startup

1 min read

Perill

Mar 5

Building ARCHITECT: Real-Time AI Interior Design with Gemini Live API + Google ADK

#showdev #gemini #ai

4 min read

Cover image for WHOIS is dead, I built an API for what replaces it

Nicolas

Mar 5

WHOIS is dead, I built an API for what replaces it

#showdev #webdev #api #tutorial

2 min read

Mar 8

Show HN: Joy – Open trust network for AI agents (AI-to-AI vouching)

#showdev #agents #ai #security

1 min read

Sumit Purandare

Mar 28

Debugging Kubernetes is Painful… So I Built an AI Tool to Fix It

#showdev #ai #devops #kubernetes

2 min read

Mar 4

Reactive Data Without the Async Headaches

#showdev #frontend #javascript #webdev

5 min read

RyanCwynar

Mar 5

I Built an AI Prospecting Pipeline That Never Sleeps

#showdev #ai #automation #productivity

3 min read

Cover image for Tired of staring at GitHub Copilot? I built an extension to ping my smart watch when it's done

Mar 18

Tired of staring at GitHub Copilot? I built an extension to ping my smart watch when it's done

#showdev #vscode #productivity #opensource

2 min read

Barrboss

Mar 5

My agent burned $147 in ~40 minutes… so I wrote a small circuit breaker

#discuss #agents #python #showdev

1 min read

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