Programming-Subkurs I: IR-Receiver -> Raspberry Pi / + “Project 1”: Cambridge Audio Azur 540A Remote

so,
because this site is all about “Building your own DIY-DAC” 😉 (and audio in general) i just new invented a new category: Programming (Rpi+STM32) + “Projects”-> in this case “Project 1 – building your own Cambridge Audio Azur 540A Remote” 😉
okay, got a wonderful IR-Receiver+Remote-Set (HX1838) from Aliexpress today->0,78€ !! (inkl.shipping)->Link

and have here at home an “Cambridge Audio Azur 540A” – Amplifier..



(really good sound (more maybe later), got almost everyday better 😉 )
but with a really horrible, horrible IR-Remote->i have to point to from 1cm away 😉 ), so i thought i build an own ir-modul (receiver and transmitter) with this DIY-things and a STM32F103C8T6 “Bluepill”..
long story short: tried to setup LIRC on a RPI according to this TUT->https://tutorials-raspberrypi.de/raspberry-pi-ir-remote-control/
bu there was no output in the console..googled a lot and the solution is->”LIRC not working on Raspbian Stretch Raspberry Pi”->
“## 0.9.4 disruptive update
The configuration is so much changed that updating from 0.9.0 requires
manual intervention. This could be done using the update scripts or as
a completely manual process. Many users will always need some manual steps”
from here->https://www.raspberrypi.org/forums/viewtopic.php?t=192891
another thing is, its not a .sh file (as wrongly described) , but a python one, so->”sudo python3 lirc-old2new“..
(now it works..)
(more to come..)