in the US, you just call a tree service and have a few tons of wood
chips delivered to your home for free. The tree service does not pay
for landfill, and you do not pay for the compost. But, it takes some
time for the chips to decompose. They are also acid and nitrogen-poor,
so you need to add some wood ash and some nitrogen-rich fertilizer (I
use urea). They sort themselves out (the bigger chips work their way to
the top of the bed, where they decay slowly and provide some mulch) and
they give you a rich humus.