neutron VS Harbor

PS: I hope that we selfhosters will have a modern, efficient, easy to use mail suite one day with modern features like JMAP, good self-learning spam integration, automated checks and validations for SPF/DMARC/DKIM or whether the IP/host suddenly appears in a blocklist and integrated encryption at rest for emails. Something that isn't 30 services in a container image, with 30 different configuration styles. Maybe even with an API integrated that's compatible to the ProtonMail frontend (like the neutron server once intended to be). Anyway, I'm sorry for dreaming. ;)

A bit related: there was a FOSS backend once but I don't think anyone wants to push further.

Some folks once started neutron which is an email server that can be used with the FOSS Protonmail web client but it was abandoned. And I guess you'd want to support JMAP in addition to IMAP as well apart from having automated encryption of incoming plain-text emails.

Anyway, to the topic: there was once neutron which is a server that aimed at ProtonMail compatibility. So that'd would simply would be able to use the same open source frontend from ProtonMail. However, this was abandoned. So you, or somebody else, could revive it.

Some folks also started implementing an FOSS ProtonMail but this project was abandoned at some point. But maybe someone will fork and revive it one day.

Two devs once started implementing a free ProtonMail server but they abandoned it. It's understandable, since it's a lot of work.

Some folks once started a free implementation of the Protonmail backend in Go. Maybe you want to revive it?

Some folks also started an open source Protonmail backend but this was abandoned at one point.

cat << EOF wget \ https://github.com/goharbor/harbor/releases/download/v2.9.4/\ harbor-offline-installer-v2.9.4.tgz EOF

Now that you know a little more about Cosign, Notary, and DCT, we will take it one step further by using one of these tools: Cosign. For this example, we will use the simple Docker registry:2 reference image to run a simple registry. In a real-world scenario, a managed registry such as Harbor, Amazon ECR, Docker Hub, etc.

Have a look at harbor, you can also use it to follow the same methods for helm charts etc.

Or for something more advanced https://goharbor.io/

Look at https://goharbor.io/

You can host your own image repo if your feeling feisty. Harbor is a graduated project from the CNCF and they are also working on a new implementation called Dragonfly. https://goharbor.io/

Does anybody know whether there could be something like an open/libre container registry?

Maybe the cloud native foundation or the linux foundation could provide something like this to prevent vendor lock-ins?

I was coincidentially trying out harbor again over the last days, and it seems nice as a managed or self-hosted alternative. [1] after some discussions we probably gonna go with that, because we want to prevent another potential lock-in with sonarpoint's nexus.

Does anybody have similar migration plans?

[1] https://goharbor.io

2) Harbor instance registry