Hi @anan.deneke
As a best practice, I’ll recommend having your codes on a repo (Azure, bitbucket…).
If you still need to use the .nukpg then follow next steps:
1-Download the package
2-Change the extension from .nupkg to .zip
3-Create a new folder with the required library name
4-From the zip folder
4.1-Workflows: Copy the files from the ‘content’ folder
4.2-Object Repo: Copy the folder ‘.objects’ from the ‘contentFiles/any/any/’ folder

5-Open the project
Note: If Object repo, is still not visible; review if Modern Design Experience setting is active
