Alternatives
Products that do what Hatchet – open-source, event-based workflow engine does
Hey HN - over the past few months, I’ve been working on Hatchet, which is a workflow engine meant for event-driven applications. Workflows are triggered by user-defined events (along with schedules and cron jobs). It bundles a web UI for observability and has several integrations built out (Sentry, OpenTelemetry, Slack). It’s very similar to using an SQS + EventBridge + AWS Lambda stack, but uses worker pools to process functions instead of isolated function invocations. Some features that Hatchet offers: 1. Publish, react to, and query events using the Events API [1] 2. You can define…
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2020 · github.com
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Hey HN, half a year ago we were building a feature where our users could trigger long-running jobs with the following requirements: (i) the job is provisioned by the user action (e.g., clicking a button in the UI), (ii) the job can be canceled by the user, (iii) the progress of the job can be inspected while the job is running, (iv) hardware for the job is provisioned only when needed (the job may require expensive hardware and isn't called that frequently). Because we couldn't find any existing ways of achieving this we decided to implement one for Python. Currently, it uses an AWS ECS…
2023 · github.com
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Hey HN, I got tired of rewriting the same event handling code, so built a more permanent solution for myself. The idea is something happens here (a signup, a failed payment, a support ticket, an error) and three things need to happen there: a Slack message, a row in a database, an email. Every time it's a new handler in code (maybe even retries, a queue, etc.) and maybe even more work integrating with Customer.io, Zapier, and so on to "get it there". So I built my own, re-usable solution that handles the above. You build a pipeline, throw events at it (SDK or HTTP), and it runs on every…
Jun 2026 · ingestlayer.com
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Hey everyone, we just released a new version of our Infrastructure as Code Python SDK that now runs entirely on your machine - no account required. LaunchFlow extends OpenTofu to provide features like multi-environment support [1], autoconfigured infrastructure clients [2], and API release management [3]. Our goal is to provide a Python-native infrastructure toolkit that handles everything from automating your infrastructure to using it in your application code. You can use our library of preconfigured OpenTofu modules to add GCP / AWS infrastructure to your app with just a few lines of…
2024 · launchflow.com
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I'd like to share a project I've been working on for the past few months. It's a distributed workflow engine written entirely in Go. Some highlights: * Tasks are executed in a Docker container * Can run stand-alone or distributed * Highly extensible * Able to enforce limits (CPU/RAM) per task * Web UI Would love the get your feedback on it, and find out if this could be useful.
2023 · github.com
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Hi HN, I'm a creator of Floww, a self-hostable workflow automation tool designed for developers who got frustrated by the limitations of visual builders like n8n. It's still a very early prototype, but the goal is to provide these same features in a code-first approach which allows for building and maintaining more complex workflows more easily. Example: import { Discord, GitHub } from "floww"; const discord = new Discord() const github = new GitHub() github.triggers.onPush({ branch: "main", owner: "usefloww", repository: "floww-dashboard", handler: async (ctx, event) => { const user =…
Dec 2025 · github.com
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Automate workflows, just by chatting. Open Source version.
Feb 2026
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In my last project, I was struggling to create and monitor cron jobs. So, instead of creating hundreds of standalone scrips and executing them with cron, I decided to turn those scripts into multiple endpoints. Next, I created a single service that I could schedule HTTP requests to those endpoints and monitor its execution. No more scripts, now everything is endpoints that I can run manually at any time I turned this scheduler service into a Micro-SaaS so you don't have to build it yourself: beew.io I know you can Schedule HTTP requests with Zapier but come on... I will not pay 50 bucks for…
2021
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2022 · eventcatalog.dev
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Hi HF, I'm Terrell, and we built an open-source app that lets developers create their own Operator with a Next.js/React front-end and a flask back-end. The purpose is to simplify spinning up virtual desktops (Xfce, VNC) and automate desktop-based interactions using computer use models like OpenAI’s There are already various cool tools out there that allow you to build your own operator-like experience but they usually only automate web browser actions, or aren’t open sourced/cost a lot to get started. Spongecake allows you to automate desktop-based interactions, and is fully open…
2025 · github.com
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Our project is at: https://www.processmaker.io/ We built a high performance workflow engine in the cloud aimed for developers. It originally was intended as a BPMN focused engine but you can also create complex workflows programatically without any BPMN diagramming tools. Think of it as a platform that goes well beyond ITTT or Zapier. This platform means we can do services orchestration and serverless programming (using our script tasks which currently support LUA) as well as human enabled workflows (think of using forms and approvals, etc). We have SDKs in most major…
2017
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