Architecture vs. Problem: The Danger of Overengineering in Programming

The Overengineering Trap

In the world of programming, there is an invisible but fundamental dividing line: the architecture-first approach versus the problem-first approach. Recently, the development of Zeri, a multi-language REPL, has served as a case study on how technical enthusiasm can overshadow a product's viability. What happens when you build something technically flawless, but lack a clear reason for anyone to use it?

Architecture-first: Art for Art's Sake

Zeri is a fascinating piece of engineering. Composed of a C++23 engine and a TUI frontend in Go (using the Charm stack), it implements a custom binary protocol for inter-process communication. The ability to share variables between JavaScript, Python, and other languages via a central, type-neutral hub is a significant technical achievement.

However, after five months of work, the author faced an uncomfortable reality: the project didn't solve any real friction. They had built a brilliant solution in search of a problem that, in practice, did not exist for most developers.

"Architecture-first is about building something great and then looking for a reason for it to exist. The justification comes afterward; eventually, it all collapses."

Why Does Purpose Matter?

The difference between a useful project and one that is just a "complex paperweight" lies in its origin. While the problem-first approach is born from a daily annoyance that one seeks to eliminate, architecture-first is often an exercise in ego or technical learning. While the latter is excellent for personal growth—similar to what we explored in our analysis on Software Archaeology: What a 10-Year-Old Protocol Teaches Us—it can lead solo developers into a dead end.

Lessons Learned for the Modern Developer

To avoid falling into the overengineering cycle, it is vital to establish checkpoints:

1. Thesis Test: At the 30-day mark, try to define in a single sentence exactly what specific problem your project solves.
2. External Validation: When publishing on open source platforms, allow the community to question the utility of your tool.
3. Brutal Honesty: If you cannot find a clear use case, accept that the project is an educational exercise and not a product, which is perfectly valid.

Conclusion

Even if the final product does not revolutionize the market, the exercise of building it provides invaluable technical value. Zeri has been released as open source, not as a productivity tool, but as a testament to what can be achieved through solid architecture. Next time, the key will be to ask "why" long before writing the first line of code.