Precloud – Dynamic tests for infrastructure-as-code

In plain words

Precloud is an open-source framework that tests infrastructure-as-code before deployment to catch dynamic constraint failures like name collisions and quota limit violations. It supports Terraform and AWS CDK with built-in checks for common issues and the ability to define custom tests. Precloud helps developers identify problems early that would otherwise cause deployments to fail partway through execution.

written from the facts on this page · September 2026

• 
  precloud2023 · github.com · ▲75

  Open-source, no more mid-deployment IaC failures

• 
  AutoCloud 2.02022 · ▲117

  Complete CloudOps for AWS, Azure, and Google Cloud

• 
  AutoCloud 2023 · ▲84

  Automatically generate secure Terraform code

• 
  MonoCloud for StartupsJul 2026 · monocloud.com · ▲167

  One identity layer for your customers, APIs, and agents

• 
  AutoCloud2021 · autocloud.dev · ▲108

  Automated 3D cloud infrastructure diagrams and insights

• 
  Build for any cloud with the same code2022 · github.com · ▲54

  We have been working on Multy, an open-source[1] tool that enables developers to deploy and switch to any cloud - AWS, Azure and GCP for now. We realized that, even when using Terraform, writing infrastructure code is very different for each cloud provider. This means changing clouds or deploying the same infrastructure in multiple clouds requires rewriting the same thing multiple times. And even though most core resources have the same functionality, developers need to learn a new provider and all its nuances when choosing a new cloud. This is why we built Multy. Multy is currently…

• 
  /dev/null▲468

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

• 
  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 · 27d ago · github.com

• 
  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 · 25d ago · github.com

• 
  OpenBot▲362

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

  Dev tools · 22d ago · openbot.run

• 
  Talanoa▲340

  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 · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 27d ago · corespeed.io

• 
  New AI edits images based on text instructions▲1,098

  This works suprisingly well. Just give it instructions like "make it winter" or "remove the cars" and the photo is altered. Here are some examples of transformations it can make: Golden gate bridge: https://raw.githubusercontent.com/brycedrennan/imaginAIry/ma... Girl with a pearl earring: https://raw.githubusercontent.com/brycedrennan/imaginAIry/ma... I integrated this new InstructPix2Pix model into imaginAIry (python library) so it's easy to use for python developers.

  AI · 2023 · github.com

• 
  HyperSwitch▲715

  Fast, reliable, and affordable open source payments switch

  Dev tools · 2023 · hyperswitch.io

• 
  I've built a C# IDE, Runtime, and AppStore inside Excel▲670

  The project is called QueryStorm. It uses Roslyn to offer C# (and VB.NET) support in Excel, as an alternative to VBA. I've posted about it before, but a lot has changed since then so figured I'd share an update. The current version includes a host of new features, namely a C# debugger, support for NuGet packages, and the ability to publish Excel extensions to an "AppStore" (which is essentially a NuGet repository). The AppStore can be used by anyone with the (free) runtime component. Another great addition is the community license, which is a free license for individuals and small companies…

  Work · 2023 · querystorm.com

• 
  I'm a doctor and made a responsive breathing app for stress and anxiety▲666

  Hey HN! Some more info: I’m an NHS doctor and the founder of Pi-A (https://www.pi-a.io) which developed Lungy (https://www.lungy.app). Lungy is an app (iOS only for now) that responds to breathing in real-time and was designed to make breathing exercises more engaging and beneficial to do. It hopefully has many aspects of interest to the HN community – real-time fluid, cloth and soft body sims running on the phone’s GPU. My background is as a junior surgical trainee and I started building Lungy in 2020 during the first COVID lockdown in London. During COVID, there were…

  Life & fun · 2023 · lungy.app

• 
  Product Hunt Rewind 2022▲620

  Your 2022 on Product Hunt

  Life & fun · 2023

• 
  LaunchPedia▲616

  200+ handpicked tools to skyrocket your product launch

  Growth · 2023 · launchpedia.co