A bit of history:<p>DR Hipp, who created SQLite, created a wonderful bug tracking system and wiki for it, called CVSTrac, with the moto "low ceremony defect tracking" that was tied to CVS. It was wonderful - I had used it in my CVS days. It was written in C, based on SQLite, was fast and just worked.<p>Trac was inspired by CVSTrac, but is written in Python, is not tied to CVS, is slower but much more capable and much more flexible (although still "low ceremony" compared to e.g. Bugzilla).<p>Fossil is DR Hipp's version control system, which integrates content version tracking, wiki and issue tracking (low ceremony CVSTrac-alike adapted for fossil)<p>I haven't had a chance to use it - last time I looked at it, it was missing crypto parts that are essential in some of the projects I work on. But if Fossil gets crypto done right, or if I stop needing it done right, I will definitely give fossil a try.