Just a comment really #1
Description
My Mac compile all ok even ventilator is ok.
(There is no driver problem but I just tried the icestudio-0.5.0-osx64 which does not work but may get the driver fixed etc. Not sure.)
What I tried too moment is that
i) the software all built ok and anarchne-pnr and yosys all in their rightful place (/usr/local/bin/)
ii) it seems the Icestorm in particular the icepack and iceprog is not in the path and I need to modify the build.sh as
../icestorm/icepack/icepack $MAIN.txt $MAIN.bin
../icestorm/iceprog/iceprog ${ICEPROG_ARGS} $MAIN.bin
iii) and to invoke the comment you need to type
./build.sh blink # i.e. no .v
iv) build ok for green, blink and count (not counter).
The essay (https://appcodelabs.com/getting-started-with-lattice-icestick-using-open-source-tools-on-macos-linux)
is great as I remember going through hackaday and takes a few days and have to use a linux to do it (with many problems).