when bitbucket decided to not support mercurial, i got worried that
       lose my version control workflow incorporating plan9. so i wrote th
       based on a set of shell, awk and C. it is functional but slow and n
       user friendliness work.
       
       as it turns plan9 community eventually wrote git for plan9. making 
       useful for others. ive migrated all my bitbucket stuff and it seems
       well enough for me.