Docker setup and modify

[cccrazyyy]

Hello, I would need a help with modding and changing parameters with docker... I tried many times to run it straight on linux but i had some issues so i decided to run it in docker. But now I have those issues:
When I do everything that is in guide. Firstly i tried docker run with this code:
docker run
--name='cs2'
-e 'API_KEY'='REPLACE_ME'
-p '27015:27015/tcp'
-p '27015:27015/udp'
-p '27020:27020/udp'
-v '/SOME/DIR/STORES_MAIN_INSTALL/':'/home/steam/cs2/':'rw'
-v '/SOME/DIR/STORES_CUSTOM_OVERRIDES':'/home/custom_files/':'rw'
'ghcr.io/kus/cs2-modded-server:latest'

but it didnt work because I dont know where to download that container.

so i tried to do this: download full repo and did this
docker build -t cs2-modded-server .
docker compose up

it started but now i dont know how to correctly set up it. Change IP, privilages for admins and so on. So please can someone help me?

I would like if someone can help me with installation to linux server or with setuping this docker container. Thanks a lot....