Not really helpful hacks and smart solutions, but links to handy stuff.
First, the Linux-Sigma GCC toolchain, for building your own C programs on the PCH. This guy also has builds for other operating systems on his blog. Using it is very easy, just unpack in /usr/local and you have a GCC compiler handy. Call your compile command like
/usr/local/mips/bin/mipsel-linux-uclibc-gcc foo.c -o /mnt/popcorn/test1
and you have your binary (in my case, foo.c is ‘Hello world’ and I have my popcorn hour drive mounted on /mnt/popcorn). When logged in using the console tools (from the community installer), just run the program. Note though, that I haven’t done anything more than ‘Hello world!’.
Second, documentation. And, as we all know, documentation is like sex: when it is good, it is very good, when it is bad, it is still better than nothing. What I was looking for is just info on the Gaya HTML extensions.