@samth how does your github api compare to this one: http://docs.racket-lang.org/github-api/index.html ?

That one is newer, I think

@mflatt or @ryanc Any idea what would cause the following error in the macro stepper?:

with-syntax1: failed pattern match against (?firstL . ?rest)
  in: ()
  context...:
   raise-syntax-error
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:62:7
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:396:0: run-one
   [repeats 3 more times]
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:325:25
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:396:0: run-one
   [repeats 1 more time]
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:68:6: continue
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:396:0: run-one
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:325:25
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:68:6: k
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:396:0: run-one
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:68:6: continue
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:396:0: run-one
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:325:25
   /Users/leif/rsrc/macro-debugger/macro-debugger-text-lib/macro-debugger/model/reductions-engine.rkt:396:0: run-one
   ...

With this error dump

Watch this space for racket beta PPA (currently building): https://launchpad.net/~plt/+archive/ubuntu/racket-beta