Alternatives
Products that do what ReJot – Database replication framework aimed at developers does
Hi Hacker News! We're Jan & Wilco from ReJot (https://rejot.dev). With ReJot we're building a framework that turns the write-ahead log of your database into an asynchronous communication channel for your services. ReJot enables application developers to define how the database tables they own should be replicated to other databases. Something we wish we had at in our previous job at a large fintech. There is a gap between building internal (REST) APIs and Kafka (event streaming) to share data between services. Internal APIs start to break down when you have more than a couple…
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Hello Hacker News! We are Rick & Yannick from Orchest (https://www.orchest.io - https://github.com/orchest/orchest). We're building a visual pipeline tool for data scientists. The tool can be considered to be high-code because you write your own Python/R notebooks and scripts, but we manage the underlying infrastructure to make it 'just work™'. You can think of it as a simplified version of Kubeflow. We created Orchest to free data scientists from the tedious engineering related tasks of their job. Similar to how companies like Netflix, Uber and Booking.com…
2020
- 7PB
Hi HN, have been working on this as a side project, would appreciate any feedback :) LogUnify is built around schemas based on protobuf and all the events in LogUnify are structured. By schematizing events, we offer the following benefits: - Consistency: All the events across all platforms and languages are produced in a uniform way with the generated type-safe SDKs, which ensures data consistency from the root. - Shared Understanding: Event schemas with rich data types and metadata are self-explained, which enables different departments from developers to business stakeholders to share the…
2023 · logunify.com
- 8RT
Dynajot (http://www.dynajot.com) aims to be an extremely low friction way to create real-time collaborative applications. With a single javascript include, the library syncs DOM nodes for multiple users across browsers. You can view the code on Github here: https://github.com/rabidsnail/dynajot-sync
2013
- 9CE
Hello Hacker News! We're a team of YC founders (Meldium W13, Draft S11, TapEngage S11) launching something new (https://www.getcensus.com). How many times has your business team asked you to generate yet another CSV file, write a ”quick report” in SQL, or send some custom data to a terrible API (looking at you Marketo)? We’ve built a product that connects directly to your data warehouse and syncs into apps like Salesforce, Customer.io and even Google Sheets. In fact, your business teams won’t even need to rely on engineering to manage all these pipelines. The tech stack for…
2020
- 10AS
Preface: we love Hacker News. It's been one of the constant good things in all of our lives, and is by far our favorite place to talk with people about what we're doing. I figured it was worth doing a special post for something we've been cooking up, rather than just linking to what everyone else gets. So here it is. We just turned on a product we're calling "Elastic Deployments". These are MongoDB clusters that scale vertically with no intervention. As a database grows, it has access to more RAM, IOPs and CPU. More here:…
2014
- 11AO
A couple of years ago, we had an interesting idea. When a development team within an organization consists of around 10 members or fewer, controlling the risks associated with database changes might be achieved through trust and real-time communication. However, as the team grows, the responsibilities within the team become more specialized. Imagine a scenario where different branches of the business exist, each with its own set of developers, team leads, testers, testing leads, DBAs, and more. Relying solely on traditional communication methods becomes increasingly challenging when it comes…
2023 · github.com
- 12IW
Hi all, I like RethinkDB a lot. One year ago, I started to document it because I want to learn more about it. At first, I blog, at one point I started to writing it in markdown, using pandoc to convert it into PDF then I switched to Leanpub. At some point, I almost abandon it. But finally I make effort to go back and almost finish it. Here is the result of one year: http://leanpub.com/simplyrethinkdb I also open source it on here(But it helps if you make an purchase on leanpub anyway :D): http://github.com/kureikain/simplyrethink The book is still WIP…
2015
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Scaling data teams today means dealing with the complexity of the modern data stack. While DBT has become a core tool for transforming raw data into structured, analytics-ready tables, most teams are using it in ways that lead to chaos: duplicated models, inconsistent metrics, and inefficient SQL that directly impacts cloud spend. The real issue isn’t with DBT itself—it’s in how it’s applied across teams. Here’s the typical setup: Finance defines a revenue model, Marketing calculates customer lifetime value, and Product defines churn. All in DBT, but all with slightly different logic,…
2024 · github.com
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Two and a half years ago, Edward, Dylan, and I started this journey to build a new database for an old problem that has long plagued the infrastructure software industry. Today, we are proud to announce that this database, TiDB, is production ready. Abraham Lincoln once said, ‘the best way to predict the future is to create it.’ The future we predicted 771 days ago we now have created, because of the hard work and dedication of not just every member of our team, but also every contributor, user, and partner in our open source community. Today, we celebrate and pay gratitude to the power of…
2017
- 16GA
Hello HN! These last few months I've been working on my first open source project: an embedded database written in pure-go. That took me some months, as I had to learn how to deal with such large packages. Until then, all packages I had made were quite small an did not require much. I usually did not have to worry about things like allocation optimization and instance pools until This project. It started when I wanted to make a port of a tool to a TUI environment. I'm actually used to working with TUIs in golang, so that was my language of choice. The tool I wanted to port is written in…
Feb 2026
- 17SG
Hello HN! I’m happy to introduce SQLiteChangesetSync, a Swift package I’m sharing for the first time. It’s designed for offline-first synchronization of SQLite databases across devices. The package uses the SQLite Session Extension for capturing and committing changes in the local database. When the client is online, these changesets can then be pushed to a shared repository, which could be any server or database (example CloudKit implementation included). Other clients can fetch these changesets to keep their local databases consistent. SQLiteChangesetSync supports branch merging when…
2023 · github.com
- 18QF
Hi HN, I’m sharing the alpha release of S2C, a state machine replication system built atop S3. The goal is to enable a distributed application to maintain consistent state without needing a quorum of nodes for availability or consistency. The idea came from a side project that was using S3 and where I needed strongly consistent distributed state but wanted to avoid adding a separate consensus dependency. I initially tried to use S3 directly for coordination, but it became messy. Eventually, I realized I need a replicated state machine with a deterministic log, and then it ended up as a…
Jan 2026 · github.com
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I created Pylon to make it easier to move from hobby projects to full production apps. When I work on hobby projects, I usually use React or Next.js because they are quick to set up and easy to deploy on Vercel. For production apps, I separate the frontend and backend, then deploy the backend on AWS. But setting up a full backend on AWS can be complex and costly, especially for simple apps. Pylon is a full-stack, real-time framework that includes server-rendered React, TypeScript functions, entities, policies, real-time sync, built-in authentication, and support for background and scheduled…
Jul 2026 · pylonsync.com
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Hi HN, We are launching Denormalized (www.denormalized.io), a serverless real-time data platform built on Kafka and Pinot. We felt a bit burnt out by the sheer developer toil we faced when building application around the real-time data stack and set out to create a platform to allow small teams to be very productive with realtime data without having to glue together an elaborate system to serve real-time as well as time series queries. Here is our motivating post. Would appreciate any and all feedback.
2023 · teamdenormalized.substack.com
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We’ve built SQLRooms, an open-source framework for creating single-node data analytics apps powered by DuckDB. It lets you build fully client-side, data-centric apps using React and DuckDB running in the browser (via WebAssembly) or in Electron. No server or backend is required — apps can work offline, preserve data privacy, and run queries on large datasets with sub-second performance. Features: - Query large datasets in browser with DuckDB (WASM) - Modular design for building composable data UIs (query editors, dashboards, notebooks, etc.) - Data privacy-preserving AI assistant that can…
2025 · sqlrooms.org
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Hey HN! Vinesh, Ian, and Kunal here. We’re building Bracket (YC W22), a bidirectional ETL platform — software that syncs data two ways between your data stack and the spreadsheet tools that your business teams rely on (e.g. Google Sheets, Airtable, and Notion databases), with the ability to add transformation logic (like SQL statements or MongoDB aggregation statements) in between. (https://www.usebracket.com/) In other words, if you want to join columns from two Postgres tables, sync the result to an Airtable table, and allow your Airtable users to edit certain fields from…
2022 · usebracket.com
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Hi HN – this is Peter from DBOS here with Qian (qianli_cs) and Jeremy (jedberg). We’re building an open-source, lightweight durable workflows library on top of Postgres. Ever since we first launched on HN last year, we’ve been blown away by the support, feedback, and response we’ve received from the community. We've realized durable workflows are critical for everything from business processes to AI automation to data pipelines, but most existing durable orchestration tools are either too heavy or too complicated for most applications. Instead, we're building something lightweight, simple,…
2025 · github.com
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We’re building an open-source language layer on top of Go, designed specifically for COBOL-style workloads: Native decimal arithmetic (COBOL-accurate) Record structures and copybook compatibility Batch jobs and transactional orchestration as first-class constructs Sequential / indexed file I/O baked into the runtime Compiles through Go for speed, concurrency, and cloud deployability Think of it as Kotlin for COBOL, or “COBOL on Go” familiar to mainframe engineers, powerful for modern developers. Test Results so far: NIST COBOL-85 validation: 77.61% overall (305/393 tests) NC…
Nov 2025 · github.com
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