Every POSIX service needs to be daemonised, write logs, etc. The question is, do you have one bullet-proof implementation in the service-manager, or do you have

Every POSIX service needs to be daemonised, write logs, etc. The question is, do you have one bullet-proof implementation in the service-manager, or do you have N independent and less-tested implementations in the N managed services? Adding code to one codebase isn't an "additional feature" if it means you can delete that code from half a dozen other codebases.