Yeah, I built flatpak of 3DCoat and sent to Sergii. Did not get any feedback from him yet, I  hope they will continue with flatpak version, not much work to do build it, plus you cover every linux distro with it and no more headache with dependencies.

Did you follow these steps, in the video? If you did and still don't see the applink addon in Blender 5.0, try adding 3DCoat & Blender to your EXCEPTIONS list in your Firewall and Anti-Virus. You may also want to check the User Account Control settings in Windows, because it would seem to be some kind of PERMISSIONS issue. Someone in the comments section complained that the Applink doesn't work because they haven't installed Blender, but are using a Blender Zip file to launch Blender and if that is the case with you also, I would try to install Blender. I am pretty sure 3DCoat cannot access Blender files through a Zip file, but perhaps a Pilgway developer can chime in about that.    

https://www.cloudcompare.org/ CloudCompare is a 3D point cloud (and triangular mesh) processing software. It has been originally designed to perform comparison between two dense 3D points clouds (such as the ones acquired with a laser scanner) or between a point cloud and a triangular mesh. It relies on a specific octree structure dedicated to this task.  Afterwards, it has been extended to a more generic point cloud processing software, including many advanced algorithms (registration, resampling, color/normal/scalar fields handling, statistics computation, sensor management, interactive or automatic segmentation, display enhancement, etc.).

2025.15 Hello! A bit late but I wanted to say Thanks for repairing the smart Retopo Tool @Gorbatovsky and maybe others involved. I works now snappy, Glitch free in the right places. Very nice. Also I want to thank @carrots for the huge Python Updates and providing some information how to use and find new modules.

This ist the right way to Install Applink! Also for the Versions on GitHub. Good video @jene

Blender5.0で3D-coatのAppLinkアドオンが自動でインストールされていないことがあるようになりました。 手動でインストールするときの対処方法の日本語向け動画です。 addon5.mp4     元情報は英文のこちらのフォーラムから。    

Great answer. Thanks. Fingers crossed!

the information thank you ! I will try that.

Copy the files C:\Program Files\3DCoat-2025\data\ToolsPresets\InstallAppLinks following this instruction https://3dcoat.com/forum/index.php?/topic/27879-blender-applink-installation-walkthrough-ctc_nick/

No, it's not. Flatpak is the way. I was skeptical for a while, but I don't think this is going to work any other way. Hopefully Sergyi following SreckoM initiative will solve it once and for all.