Is there any complex project example? I found it hard to setup project's structure using modules/non modules and envs

Most of the examples I've found are in the style of an application which includes its infra definition, which is not ideal for my use cases. I'm working on a project and my structure is as follows:

index.ts
src/components/x.component.ts - pulumi components
src/tools/some.tool.ts - random ts utils

yeah, I've felt the same like the only pulumi use case is to describe some pieces of infra in the application project/dir itself instead of having separate dir/project with all infra described where you can logically organize pulumi code using subfolders.