looks like maybe yarn1 will work

Author: jhheider

projects/git3.sh/package.yml

@@ -10,7 +10,7 @@ dependencies:
 
 build:
   dependencies:
-    yarnpkg.com: '*'
+    classic.yarnpkg.com: '*'
   script: |
     mkdir -p {{prefix}}/bin
     sed -i.bak 's|/usr/local/bin|{{prefix}}/bin|g' package.json
@@ -27,6 +27,6 @@ provides:
   - bin/git-remote-git3
   - bin/git3
 
-test:
-  script: |
-    git3 --help
+test: |
+  git3 --help
+  git3 wallet list