Alternatives
Products that do what Valmi.io Open Source Reverse-ETL Engine does
Hi HN Community, We have built the valmi.io open-source reverse-ETL platform. You can quickly check out a live demo sync by following the link on the GitHub page or at the bottom. Please try it out. You can also easily deploy it locally or schedule a run on the demo website. We are seeking feedback on the product. We have outlined a variety of use cases valmi.io currently supports on the blog. Currently, the engine supports 13+ connectors. The connectors are built using the airbyte protocol, and dagster is used as the orchestration engine. We will soon provide a detailed architecture…
- 1NO
Hello HN! The day has finally come to stop adding features and start sharing what I've been building the last 5-6 months. It's a bit of CrewAI, OpenDevon, LangFuse/Cloud all in one, providing devs who prefer TypeScript an integrated framework thats provides a lot out of the box to start experimenting and building agents with. It started after peeking at the LangChain docs a few times and never liking the example code. I began experimenting with automating a simple Jira request from the engineering team to add an index to one of our Google Spanner databases (for context I'm the…
2024 · github.com
- 2SASemgrep App▲79
https://semgrep.dev/products/semgrep-app Hi! I work on Semgrep, an open-source project (discussed on HN previously [0][1)]. We’re one of those companies that maintain an OSS tool and a web app, and then monetize by selling enterprise features on said web app. Our free web app just went through a major revamp (sort of like a v1.0 release) so this feels like the perfect time to share and hear what the HN crowd thinks! Let me start with some backstory on Semgrep. Our team, r2c, has been experimenting with various ways to help organizations step up their application security…
2021
- 3SC
Hi All, I released an EVM/Solidity decompiler recently, here: http://www.eveem.org/ Since it uses symbolic execution underneath, the results are quite awesome. There is also an api that delivers a .json / middle language representation of every contract here: http://eveem.org/code/{{address}}.json The plan is to open-source it as soon as I clean up the code a bit. Spent the last two month crunch-time to get it delivered from scratch :)
2018
- 4HO
Hi HN! Ben here from hyprsqrl, and I just open-sourced something we’ve been quietly running in production: *hyprsqrl is a self-hostable bank. Think Revolut (if you know it), but every line of code is MIT/AGPL, you can run it on your own box, and the crypto bits stay hidden under the hood. --- ### Why we built it Moving money between USD and EUR still means wire fees, surprise freezes, and “call your bank” hoops. Fintechs like Revolut help—until their pricing changes or a regulator knocks. hyprsqrl aims for the resilience of self-hosting *without* forcing users to study crypto. Two…
2025 · github.com
- 5WB
Over the past few months, as we scaled our internal AI Agents, we hit a dead end: Running LLM-generated arbitrary code in Docker is basically running naked on security due to container escape risks. But using full traditional VMs takes minutes to boot and eats too much memory to support high-density concurrency. We loved the developer experience of SaaS sandboxes on the market, but they are closed-source, expensive, and have too high a barrier to entry for self-hosting. So, our team decided to build our own. After months of grinding, using RustVMM and KVM, we built a blazing-fast,…
Apr 2026 · github.com
- 6IB
Hey HN! Over the past few weeks, I’ve been working on DataBridge, an open-source solution for data ingestion and querying across text, PDFs, images, and videos. In our latest update, we’ve added a fully local deployment option: - No internet required – Runs entirely offline. - Customizable Models – Supports any LLM and embedding model via Ollama (with options for any other private providers) - Extensibility – You can plug in your own models or tools easily. This local-first approach ensures better privacy, security, and flexibility, especially for teams dealing with sensitive data. You can…
2025 · github.com
- 7IB
Link: https://docs.trysoma.ai/ For the past ~9 months I’ve been building Soma, an open-source AI agent & workflow runtime written in Rust, with a TypeScript SDK (Python coming soon). It’s not a framework; it’s meant to sit underneath whatever agent/tooling code you already write (Vercel AI SDK, LangChain, custom code, etc.). It provides features around your framework + a better DX for building agents. I’ve tried to take a Next.JS model: open-source, good DX, self-deployable. I originally set out to build a vertical back-office/operations product for SMEs. I needed a…
Dec 2025 · docs.trysoma.ai
- 8AL
Hi HN, I build this a few months back, thinking about improving it but wanted to share as is first to see what feedback I can get. I built it to be modular and with a clean understandable codebase in mind so easily extendable. I want to add more components to it maybe... Thanks! Will add link to the repo in a comment now
2022
- 9FW
Hi HN! I recently open-sourced a project I’ve been working on over my winter break: a Solidity web framework you can use to write web apps in Solidity (and more generally, a proof-of-concept implementation of an arbitrary network protocol over Ethereum). Here’s a demo web app on the Optimism Goerli testnet: http://simple.fallback.natecation.xyz/ Running this Solidity code: https://github.com/nathanhleung/fallback/blob/main/src/examp... There’s a lightweight TCP server script that’s listening on the demo app domain that forwards requests…
2022 · github.com
- 10IM
I spent the past few weeks making an open source cloud code editing environment with an AI copilot and multiplayer collaboration! It's fully self-hostable in 5-10 minutes. There's a lot of minor improvements to be made, and some are already listed in the Github issues. Let me know what you think and feel free to try it out.
2024 · github.com
- 11IL
My name is Elliott. For the last three years, I’ve been building a DevOps platform on the best-in-class open source platforms (Kubernetes, Elixir, PostgreSQL, Grafana, etc.). The goal is to give engineering teams access to a modern DevOps infrastructure without needing to have a full SRE/DevOps team dedicated. It’s also open source /fair source - all the source code is here → https://github.com/batteries-included/batteries-included I shipped a public beta today and would love to hear initial reactions, thoughts, and feedback. Here are details of the platform: *…
2024 · batteriesincl.com
- 12RA
Hi HN, I recently open sourced a small tool (Remuda) that I built at work to remove some of the friction of launching and managing agents and figured HN might be interested. I also wrote a post on the company blog that goes into more detail about why I built it and showcases its features: https://www.yendo.com/blog/remuda-an-agent-orchestrator
Jun 2026 · github.com
- 13RA
I am a hardware engineer and security researcher and I've been wondering whether my work could be partially automated, so I can focus on other topics as well, so I build revenant - a LLM powered (Claude, OpenAI, local AI) toolkit that builds around radare2, ghidra etc and can fully automatically analyze firmware, implement open source skeletons incl. pinouts, hardware bringup, peripheral bringup etc. or can even 1:1 replicate existing firmware so old hardware can be resurrected with modern toolchains. Some applications are: - Give old hardware new life - Security Analysis of shady firmware…
Jun 2026
- 14DB
Hey HN, my name is Tom and I'm the founder of Svix. We've been working on Diom (https://diom.com) for the last 6 months, and I'm excited to finally share it on HN! Diom is a single Rust binary that replaces Redis, RabbitMQ, Kafka, and a lot of custom code for many common use-cases. It's open-source, self-contained, and has no external runtime dependencies. While building Svix, we had to reimplement the same backend primitives that everyone reimplements when building a service: robust caching, rate-limiting, idempotency, and more. We also constantly felt the tension between building…
May 2026 · github.com
- 15IM
Been using it for about a year now in production, but rewrote it completely in golang. My first go project so far. I wanted to have something that would make my life easier. A lot of tools nowaday kinda push you towards functional deployments and that usually doesn't work for me since I like stuff like LiveView by Phoenix and Websocket stuff in general. Old vercel deployments back when they allowed to deploy docker containers was a godsend, but since they don't offer that anymore I had to use services like fly.io(which is amazing) or heroku. However I wanted something selfhosted that I could…
2024 · deploywithjig.askh.at
- 16RW
Hey Hackernews! My names Olly (a Designer from the UK). I’ve been a long time lurker on Hackernews but now I finally have something to share with the community. Along with my friend Oliver (Developer, Sweden/Japan) we have been working on Remotewise.io. It’s a new resource and learning platform dedicated to remote work. We’ve both been working remotely for most of our careers. Over this time remote work has been gaining huge momentum as a viable and desirable way to work and we believe it’s the future. We’ve been working on this during our evenings and weekends in between our full-time…
2019
- 17WB
Hey HN, After GPT-3 created waves in the tech industry, a lot of AI tools were emerging and with that, some AI website builders But the results seemed way too generic to us. It felt like the developers were rushing to catch the wave instead of building a proper tool We took our time, did months of RnD and finally came up with something better than what others in the market are doing. It’s got better design output. While it’s still in beta, I wanted to show HN what we did. Will appreciate the feedback when you guys try it out. Here is the link to signup for the beta:…
2024 · dorik.com
- 18MI
Hi! Recently I've launched - mybfio.io - platform for software reviews with social network aspect. Prehistory Many great system are already in place that allow people to search and rate software products, including the site I am publishing this post on. However I have always felt that those systems are not specifically centered around product/software development lifecycle (releases, real users feedback over a product entire lifetime, so on) and often too broad or not designed specifically for that type of work, which is ok. Why? As an opensource author I would like to have constant…
2021
- 19CC
My team built this free open-source catalog that allows anyone to search through any data connector/source. There's a list of ETL providers for each so your analytics and BI projects can be as comprehensive as possible.
2022 · connectorcatalog.com
- 20FN
Hi HN! I’m Zach, co-founder / CTO of Platform Engineering Labs. We’re building formae, an open-source IaC system that stays in sync with real infrastructure instead of relying on manually maintained state and drift detection. We’ve just shipped Kubernetes, Helm, and Terraform .tfvars support. The goal with this release was simple: make it easy to start using formae with infrastructure people already have. formae can now discover existing k8s workloads automatically and the ability to utilize existing Helm charts. Coming from Terraform / OpenTofu and already have variable…
May 2026 · github.com
- 21AJ
I have created a Cron alternative that runs DAGs (Directed acyclic graph) defined in a simple YAML format. Why not Airflow? Airflow and other similar tools are powerful and valuable, but in most cases, they require writing code to manage workflows. Our ETL pipeline is already hundreds of thousands of lines of complex code in Perl and shell scripts. Adding another layer of Python on top of this would make it difficult to maintain. Instead, we needed a more lightweight solution. So we developed Dagu, which requires no coding, and is easy-to-use and self-contained, making it ideal for smaller…
2022 · github.com
- 22VA
Dear HN Community, I am a long time fan and first-time contributor. I just launched a developer focused semantic search platform and wanted to share it with the community. The idea is simple: upload structured or unstructured documents, select the fields you want to index and tag as metadata, and instantly get a clean search API you can use in your own app. Here is what it currently supports: - Manage your own tenants and projects - Upload .json and .txt files (support for .pdf, .docx, .xlsx, .yml, etc. coming soon) - Expose 3 APIs: search, upload document (embeddings), and delete document -…
2025 · aisearch.vpuna.com
- 23OS
Hi HN - Marius (mbuleandra) and I built Restly as a side project. Restly generates a user-friendly tutorial against any OpenAPI spec. While building public-facing APIs, we found that writing these guides by hand took a lot of work. Many OpenAPI specs were too large to send to GPT-4 / Claude directly, and even when we could send them, we experienced lost-in-the-middle and hallucination issues. The project is very alpha but works against the Vocode API when we specify well-defined goals. Let us know your thoughts; we would love your contribution to the project! [1]…
2023 · github.com
- 24LO
Hi HN, Martin, Nils, and Jannes here. We are building Legit, an open source version control and collaboration layer for AI agents and AI native applications. You can find the repo here https://github.com/Legit-Control/monorepo and the website here https://legitcontrol.com Over the last years, we worked on multiple developer tools and AI driven products. As soon as we started letting agents modify real files and business critical data, one problem kept showing up. We could not reliably answer what changed, why it changed, or how to safely undo it. Today, most AI…
Jan 2026
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