1. qrencode
    cl-qrencode is a library to create a QR code
  2. qt-libs
    Working with CommonQt/Qtools currently requires working with SmokeQt
  3. qtools
    Qtools aims to be a toolkit to support development with CommonQt
  4. qtools-ui
    This is a collection of useful widgets and pre-made components for use in your Qt applications
  5. Quantile estimator
    Biased Quantiles over Data Streams
  6. quasiquote-2.0
    An alternative quasiquote syntax aimed at being more suitable for macros that define other macros
  7. query-fs
    Query-FS is a FUSE-based filesystem that presents database queries as filesystem trees
  8. queues
    A Common Lisp queue library with features such as non-consing thread safe queues and fibonacci priority queues
  9. Quick Arrays
    A re-run benchmark on original code by Ron Parr, with a couple of tweaks by David Mullen to run on CCL, figuring that the contrast between then and now (1996 versus 2020) might be interesting
  10. quick-arrays
    quick-arrays is a Debian package of the Quick Arrays concept