I rarely get asked to rig anything, but the issue came up and I realized I never really made the transition from the Softimage way to Houdini.
All I'm rigging is a leg from the shin down to the toes (with a shoe on the foot). In Softimage, I would have set up some simple bones and created some low res geometry to envelope. Then I'd use that low res geometry to drive the high res mesh.
In Softimage anything could be used as “bones” - you'd just select whatever you wanted to use and apply an envelope to your geometry.
However, in Houdini rigging seems to be totally different than Softimage. And, unfortunately all the guides & tutorials either are ones that take you through rigging an entire character or just cover one or two nodes, but there's nothing that covers the basics of how the Houdini way works.
I've looked at Jordi's guides and it's helped but I'd love a bit more insight.