Underrated Postgres: Build Multi-Tenancy with Row-Level Security

What it does

Enhance your multi-tenant application

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  I open-sourced the in-memory PostgreSQL I built at work for E2E tests2024 · github.com · ▲379

  In-memory Postgres for unit/E2E tests. Contribute to hexclave/pgmock development by creating an account on GitHub.

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  PostgresML, now with analytics and project management2022 · postgresml.org · ▲444

  We've been hard at work for a few weeks and thought it's time for another update. In case you missed our first post, PostgresML is an end-to-end machine learning solution, running alongside your favorite database. This time we have more of a suite offering: project management, visibility into the datasets and the deployment pipeline decision making. Let us know what you think! Demo link is on the page, and also here: https://demo.postgresml.org

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  Postgres query lock explainer2023 · github.com · ▲143

  This is like 4 years old, but I’m braver now and ready to share stuff with this community. I’ve been a lurker for a while. I made this tool - it’s kind of like “explain” but it tells you about what locks would be required by the query. I was making it as part of a larger tool that would try to prevent deadlocks during migrations at my last company, I never finished it.

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  Open source, logical multi-master PostgreSQL replication2025 · github.com · ▲151

  Logical multi-master PostgreSQL replication. Contribute to pgEdge/spock development by creating an account on GitHub.

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  Software Engineering Daily - Scaling PostgreSQL2016 · softwareengineeringdaily.com · ▲70

  A look at modern database approaches and how Citus scales PG

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  Sqlauthz: Declarative permissions management for PostgreSQL2023 · github.com · ▲15

  I've been working on a little project recently to solve a problem that I've encountered at every job I've ever had, and I'm eager for some feedback. Having super granular roles & permissions in PostgreSQL is desirable, but quite difficult to maintain (particularly at smaller companies without dedicated security/devops/DBA/whatever who make it their business to maintain it). I've thought for a while that having a declarative way to manage them would be really useful and allow more teams to actually make use of sophisticated security features that PostgreSQL offers in their…

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  /dev/null▲490

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

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  Run full iOS 16.5 firmware on Android Devices▲429

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 18h ago · github.com

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 29d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 24d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 22d ago · talanoa.email

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  YouMind▲1,223

  The first AI creation studio where learning meets writing

  AI · 2025 · youmind.com

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  A store that generates products from anything you type in search▲1,184

  The site hit #1 on HN about a year ago. Got enough traffic that I turned it into a proper API. What's there: - REST API — 35k products, manually filterable by category, free key, 60 req/min - CLI — npx anycrap random -c food - faker.js plugin — bundled, no API call, works offline - HuggingFace dataset — full 35k rows for ML/training https://anycrap.shop/developers

  AI · 2025 · anycrap.shop

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  Term.everything – Run any GUI app in the terminal▲1,094

  I made a built-from scratch Wayland Compositor to display any GUI app* in the terminal! I think there is a lot of unexplored potential in custom Wayland compositors, a lot of really cool things you can embed existing applications into! So, I started with embedding apps into the terminal because that is the easiest input/output (output is just utf-8 and I use the great `chafa` library for that, and I just read from stdin for the input). If you have any other ideas for cool Wayland compositors, let me know. I purposedly wrote 80% the app in Typescript to appeal to the most developers and…

  Dev tools · 2025 · github.com

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  I recreated Windows XP as my portfolio▲1,032

  Years ago I stumbled across a basic version of this concept and it stuck with me. I knew if I was ever going to take on such a project, it would need to be flawless, but without coding experience it was just another idea that would never happen. By the end of 2024, as AI coding tools exploded everywhere, I finally had a way to make it real. I started from zero knowledge and spent months collaborating with AI agents as a learning experience. Every pixel and every function went through me. The AI translated what I asked for into code, but every decision was human. I didn't use existing OS…

  AI · 2025 · mitchivin.com

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  Ada▲910

  Your own AI data analyst

  AI · 2025 · ada.im

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  VidAU - AI Video▲868

  Turn Product Images into Scroll-Stopping Video Ads

  Growth · 2025 · vidau.ai