Hazelky
I have just built a full compost heap after the first spring cutting of grass. With the warm dry weather I have been germinating dwarf beans, cucumber and squash on what is effectively a hotbed (internal temp 64C day three after building it). Seedlings are coming through on day 4 in case of cucumber and dwarf beans, no squash yet but roots have poked through the bottom of the modules so probably should appear soon.
If you are short of windowsill space, this is another alternative if you build a heap in the spring…..