Nice
re: repository, that becomes high maintenance is the only issue, with permissions and making sure the authors test every last thing and not assume nothing has broken.
Wiki means you get it working once and show as simply as possible how you did it (so no real need for #defines in the examples) and you are pretty much in the clear after that. i.e. when I changed brightness code for vfd, it orphaned many bits of brightness code, but since that wasn't interfering with the hack and would complicate the example, I left those changes out.
Wiki also means any ecomodder can use it by default.
re: fonts, yup only 8 user definable fonts in your standard issue 2x16.