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All contribution work starts with making your own fork. The repository to fork is https://bitbucket.org/rpgframework-cloud/shadowrun6-eden/src/master/ .
Usually the option to fork the repository can be found on the “Source” page in the sandwich menu. Unfortunately there currently (January 2023) is the problem, that the option to fork public repositories isn’t available anymore - which is likely a bug ( https://jira.atlassian.com/browse/BCLOUD-22395 )
The workaround is to contact taranion#5388 and ask for explicit read permissions (to the public repository 🤪 ) - that will enable the fork option.
Step 3: Discuss need for a branch
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Change into the branch if needed. (If you are new to Git, try to find a good tutorial on the internet on how to do that.)
Step 5: Install the typescript compiler
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