Because there are a number of different Syndicate implementations, and they all need to interoperate, I’ve used Preserves Schema¹ to define message formats that all the implementations can share.

You can find the common protocol definitions in a new git repository:

git clone https://git.syndicate-lang.org/syndicate-lang/syndicate-protocols

I used git-subtree to carve out a portion of the novy-syndicate source tree to form the new repository. It seems to be working well. In the projects that depend on the protocol definitions, I run the following every now and then to sync up with the syndicate-protocols repository:

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git subtree pull -P protocols \
    -m 'Merge latest changes from the syndicate-protocols repository' \
    git@git.syndicate-lang.org:syndicate-lang/syndicate-protocols \
    main