Tutorials cover one operation at a time. Here, complete projects combine several techniques to build something concrete, end to end.
Generating a PCB ruler (cm and inches) with a pcbnew Python script
A real 15 cm / 5 inch PCB ruler drawn by a pcbnew Python script: gold copper ticks, silkscreen numbers, SMD size and drill gauges, 0 DRC errors.
Repositioning footprints in bulk from a CSV file with pcbnew's Python API
Read a list of references and coordinates from a CSV file, then reposition every matching footprint in a single script — with pcbnew or KiCad's IPC API.
Generating a copper or silkscreen QR code on a PCB with pcbnew
Engrave a QR code in copper or silkscreen on a PCB with a Python script: build the matrix, then one square per module, with pcbnew or the IPC API.