17/09/2026
The most expensive sentence in software engineering might be: But it works on my machine.
đ¨âđģ Developer: âIt works on my machine.â
đ§âđŧ Ops: âWellâĻ your machine isnât production.â
âī¸ DevOps: âFine. Letâs put your machine in a container.â
Your laptop may have:
- Different dependencies.
- Different runtime versions.
- Different environment variables.
- Different system libraries.
- Different configuration.
Then we deploy to production and wonder: Why did it break?
Containers help us package the application with the environment it needs, making deployments much more consistent, repeatable and predictable.
The DevOps mindset isnât: It works here. Itâs: Can we make it work the same way everywhere? Thatâs the real idea behind:
Build once â Package â Deploy consistently â Run anywhere.
At bongoDev, this is something we always want engineers to understand:
âŗ Donât just learn Docker commands. Understand the engineering problem Docker is solving. Because tools will change. The engineering mindset stays.
Whatâs your favorite âworks on my machineâ story?