I have almost got Alistair's simian-export working with autopkg to enable uploading to an AWS S3 bucket. The uploading works inasmuch as I can see the file in my S3 bucket. The plist is likewise successfully uploaded to my Simian appspot instance. I confirmed that the URL to the bucket, when opened in a browser tab, successfully downloads the package. The PackageCompleteURL key is set in my plist as follows:
When I run managed software center on my mac, I do not see TextMate as an available package to install. I do notice that my Simian server appears to want me to upload a package associated with TextMate per the message below:
How do I indicate to Simian that it should look in the plist to find the source of the package file.