Kubernetes Universal Declarative Operator (KUDO)
KUDO was accepted to CNCF on June 23, 2020 and is at the Sandbox project maturity level.
Recent KUDO news

Why we selected Thanos for long term metrics storage
April 18, 2022
KEDA at Zapier
January 21, 2022
Argo CD 2.0 Released!
April 7, 2021Latest tweets from KUDO
Great new blog post on debugging @kubernetesio controller issues when developing @kudobuilder operators - https://t.co/3LLVjPevPA
Super excited to announce that KUDO v0.11.0 has been released! This version encompasses no less than three new KEPs, including a new task type ('ToggleTask') and the ability to manually trigger plans. Get the full details here:

Release kudo-v0.11.0 · kudobuilder/kudo
🚀 Highlights Support typed parameter values @nfnt (#1376) KEP-25: Implementation of toYaml function. @porridge (#1375)...
github.com
Catch @d2iq’s @yankcrime introducing KUDO at tonight’s Kubernetes and Cloud Native Budapest Meetup: https://t.co/AZuw2gn4mj
Our latest blog post introduces a KUDO Terraform provider and how that can be used to orchestrate production workflows. @tommyrunyon goes into detail here: https://t.co/N1YqNeVoVp
The KUDO website has just received a major overhaul including an all-new landing page, completely re-written and expanded comparison section, runbooks for common tasks, and much more. Go check it out! 👉 https://t.co/S8sqUpcqdQ
KUDO 0.10.1 is out! 🎉 The 0.10 release features some really handy new functionality aimed at operator developers, such as skeleton generators. Check out the release notes for 0.10 and 0.10.1 here:

Releases · kudobuilder/kudo
Kubernetes Universal Declarative Operator (KUDO). Contribute to kudobuilder/kudo development by creating an account on GitHub.
github.com
Just in time for Christmas 🎄 we’ve released v0.9.0 of KUDO! This includes some awesome new features such as 'Pipe' tasks (share generated resources across steps), admission webhooks, cleanup plans, and more. Check out the full details here: https://t.co/QxpfAUDPYJ
Paging 👋 @__brennerm! We’d like to reward you for being one of the top contributors to our project during #Hacktoberfest - would you mind DM’ing us your address and shirt size so that we can send you a t-shirt?