i think the timeout is happening because you're copying too many files to the build. create a .dockerignore file in your root directory with this:

.git
__pycache__
*.pyc
venv/
.venv
env/
.pytest_cache
*.log
.DS_Store
node_modules/

also if that doesn't work right away, go to your railway service settings and add an environment variable NO_CACHE=1 to force a fresh build without cached layers

commit the .dockerignore, push, and it should deploy way faster. the copying step is what's killing you right now