Just to add my 2c.
I was already working on a new version of the Arkance Systems Node Library, but slowly, because the old .NET 4.8 Framework package seemed to work in Civil 3D 2025, contrary to expectations. When 2025.1 came out, suddenly all packages were broken. C3DToolkit and Arkance nodes no longer load. Camber can be loaded in Dynamo, but several nodes do not work.
In the Autodesk Feedback forum, Zachri stated more clearly that no updates are to be expected for C3DToolkit and Camber. This also means their plans for the combined package have been canceled.
So, suddenly I needed to accelerate in my development. In consultation with Zachri, I suggested to take over code from Camber and merge them with my nodes into a new package. Because C3DToolkit is not open-source, I suggested to reconstruct the most interesting nodes from scratch and add them too, to the new package.
Because there are lots of nodes in the Core now, that do the same or are at least similar to nodes from Camber, C3DToolkit and Arkance nodes, I made a list of all nodes that did not found a way to the Core yet. I have plans to add (part of) the list to the new package.
But because of the big API breaks in 2025.1, it takes a lot of time to rewrite my own nodes (and also make them compatible with the new Core objects), and lots of the Camber nodes don’t work either in 2025.1, which take a serious amount of work to rewrite them.
I am not finished with adding all missing nodes yet, but it feels becoming somewhat urgent to publish my new package sooner than planned. However, there is a big drawback, the new package is only for Civil 3D 2025.1 (and higher, until, but hopefully not, another big break occurs). That means that all existing scripts from users need to be rewritten and are not backwards compatible, in case such is needed.
So within a short time from now I will publish a new package for Civil 3D 2025.1 and up, with nodes combined from Arkance, Camber and C3DToolkit, with the expectation that I will add more missing nodes later. It will help users to make the step to 2025 instead of staying with older versions. It is not my intention to keep the source closed, but I know from experience that there is little to no interest in code, or contributing to programming. I also was told that Autodesk don’t want to use code from outsiders, which is understandable. What @jacob.small suggests, making Dynamo for Civil 3D open source, will likely not lead to an expansion of functionality.
And to end this tl;dr with a smiley
else it looks too much like a rant 