+* <http://blog.lambdaconcept.com/doku.php?id=migen:tutorial>
+* <http://chiselapp.com/user/kc5tja/repository/kestrel-3/dir?ci=6c559135a301f321&name=cores/cpu>
+* <https://chips4makers.io/blog/>
+* <https://hackaday.io/project/7817-zynqberry>
+* <https://wiki.f-si.org/index.php/FSiC2019>
+* <https://github.com/efabless/raven-picorv32> - <https://efabless.com>
+* <https://efabless.com/design_catalog/default>
+* <https://toyota-ai.ventures/>