Developer tools, especially ones around code should be open-source. If you like the idea of productionizing one-off scripts, building flows, and managing secrets and schedules in an integrated platform, we have made the same observation as the Airplane team but in a fully open-source manner: [1]. Being open-source in this space offers a lot of synergies, you can for instance build a community around sharing the modules that compose your flows: [2]
In addition, if your primary languages are Typescript, Python or Go, we offer a more integrated experience by parsing the script parameters directly to generate the input spec and the frontend. We are developing our own UI builder as well, more to be announced in the next month. We just released our helm-charts for easier self-hosted deployments: [4]
You can also try it for free at [5]
[1]: https://github.com/windmill-labs/windmill
[3]: https://windmill.dev