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The 3-Month Rule: My Technical Framework for Doing Things That Don’t Scale Variation 579

Embracing the 3-Month Rule: A Practical Approach for Startups

In the startup world, advice like Paul Graham’s mantra to “do things that don’t scale” often resonates deeply. However, the challenge lies not in understanding this concept, but in effectively implementing it within the realm of coding.

Over the past eight months of developing my AI podcast platform, I’ve adopted a straightforward yet valuable strategy: any unscalable solution is permitted a lifespan of three months. After this period, it must demonstrate its worth or face elimination.

As engineers, we frequently find ourselves caught up in the pursuit of “scalable” solutions from the get-go, focusing on elaborate design patterns, microservices, and distributed systems. However, in the context of a startup, this mindset can often lead to overengineering and unnecessary complexity. The reality is that we may be optimizing for users who have yet to arrive, addressing challenges that may never materialize.

My three-month framework compels me to craft straightforward, even rudimentary, code that can be deployed quickly. This not only promotes a rapid feedback loop but also unveils genuine insights into user needs.

My Current Infrastructure Hacks: Pragmatic Choices

1. Unified Virtual Machine

I have consolidated everything—a database, web server, background jobs, and caching—onto a single $40/month virtual machine. It’s a setup free from redundancy, with manual backups executed to my local machine.

Why is this a smart approach? In merely two months, I have gained a clearer understanding of my actual resource requirements than any extensive capacity planning could have provided. I discovered that my so-called “AI-heavy” platform peaks at just 4GB of RAM. I almost initiated a complicated Kubernetes setup that would have only required the management of dormant containers. Each time it crashes—twice so far—I gather invaluable data about what truly falters. Curiously, it’s never what I anticipated.

2. Hardcoded Configuration

In my code, configurations are hardcoded:

python
PRICE_TIER_1 = 9.99
PRICE_TIER_2 = 19.99
MAX_USERS = 100
AI_MODEL = "gpt-4"

There are no configuration files or environment variables—just constants interspersed throughout the files. Altering any value necessitates a redeployment.

The advantage? I can swiftly search my entire codebase using grep to locate any configuration value. Each price

One Comment

  • Absolutely love this pragmatic approach—especially the emphasis on rapid experimentation and learning over premature optimization. The 3-month rule creates a valuable sense of urgency that helps prevent engineers from overengineering solutions too early in the startup journey.

    Your consolidation of resources onto a single VM exemplifies how simple infrastructure choices can provide deep insights into actual needs, rather than hypothetical projections. This “reality check” can save a lot of time and unnecessary complexity down the line. Similarly, hardcoded configurations, while seemingly crude, can serve as excellent tools during rapid iteration phases to keep things flexible and quick to modify, provided you plan to evolve these into more flexible approaches as the project matures.

    In essence, your strategy offers a healthy balance—encouraging quick wins, real user feedback, and a constant reassessment of what’s truly necessary. It’s a reminder that in early-stage development, the key isn’t always to be scalable from day one, but to be adaptable and intentional about what features and infrastructure solutions are worth investing in long-term. Thanks for sharing this insightful framework!

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