I've found dustlayer.com site since I wanted to learn C64 coding since forever (even though I haven't ever own a C64) and now I'm going through the tutorials, trying to also implement some of my own stuff along the way (for example I'm trying to implement a routine that will print text starting on address stored in stack on x/y screen position stored in x/y registers with color stored again in stack).
Let's see how it goes. Will post the report on Monday since I plan to dedicate the weekend to it.