Replace Python/Django with Java/Kotlin/SpringBoot and you pretty much have my preferred project stack, which also organically grew due to being exposed to these

Replace Python/Django with Java/Kotlin/SpringBoot and you pretty much have my preferred project stack, which also organically grew due to being exposed to these platform tools in my day job. Kubernetes/Terraform and friends are really useful as a solo-dev if, and only if you have the required experience with them.