First attempt failed with missing dependencies, so I reran a command from last time:
sudo apt-get install build-essential autoconf automake autopoint libtool intltool bison flex libgnutls28-dev libxml2-dev libsqlite3-dev
Stuck on installing Weston — it's missing a dependency on
libinput which I can't find in the repo and the build instructions for Weston reference as needing to be built from source. Seems like this should be part of the dependency tree for Webkit, then?