Photo by Tom Parkes

Future Proof Software

Josh Price Portrait

Josh Price

10 October 2025 · 5 min read

To prepare for a deeply uncertain future, you need future-proof software. Companies that rebuild for continuous, accelerating change will operate faster than their competitors. The winners won't be those who predict the future, they'll be the ones who invent the future by building systems that adapt faster than their competition.

Our Core Beliefs

We believe the path forward requires a fundamental shift in how we think about software:

Adaptability beats Prediction. You cannot predict what AI will enable in 18 months. You can build systems that adopt those capabilities within days of their release.

Specifications are durable assets. Your business logic, formally specified, is your intellectual property. Everything else is temporary.

Implementations are artifacts. Code isn't permanent. It's a manifestation of your specifications in a particular technology at a particular moment.

Knowledge is power. How you organize knowledge determines whether humans and tools can reason about your business effectively.

AI-native companies will win not by predicting the future, but building systems humble enough to adapt.

The Transformational Choice

You face a difficult choice. Continue incremental improvements to existing systems, accepting vendor lock-in and technical obsolescence. Or rebuild your foundation for continuous regeneration.

The very nature of code is changing:

Treating business logic as the true source. Your specifications define what your system does. The programming language, framework, cloud provider, and AI models become swappable components rather than foundational decisions.

Building for continuous regeneration. When better technology emerges faster and faster, you regenerate your implementation from specifications. This will take weeks, not years.

Creating competitive advantage that compounds over time. Each regeneration gets faster. Each technology upgrade happens sooner. The gap between you and slower competitors widens continuously.

The Strategic Shift

This requires rethinking what constitutes your software assets:

Your specifications are your intellectual property. They capture your business logic, rules, workflows, and domain knowledge in a durable and technology agnostic form. They're version-controlled, reviewed, and tested like code—because they are your source code.

Implementation code becomes a generated commodity. With modern AI, you generate working code from specifications. Python today, Rust tomorrow, whatever makes sense next month. The specification remains stable while implementations change.

Knowledge structures become AI-accessible assets. Your data isn't just stored—it's structured so AI can reason about it. Every decision, interaction, and outcome becomes organizational memory that AI can access and learn from.

Systems are continuously regenerated from specifications. Technology changes happen through regeneration, not migration. When AI capabilities leap forward, you regenerate. When your cloud provider changes pricing, you regenerate. Your specifications stay stable; everything else adapts.

The business impact is profound:

Cost: Tech stack changes take weeks instead of years. No more multi-year, multi-million dollar modernization projects.

Speed: Deploy new AI capabilities as they emerge. Your competitors take quarters; you take weeks.

Risk: Eliminate vendor lock-in and technical obsolescence. You're never trapped by yesterday's decisions.

Security: In a world where criminals will have better capabilities at an accelerating rate, security is not optional. Making an appearance on the front page of the news isn't what anyone wants, especially your customers.

Talent: Your best people become architects who define value, not maintainers fighting technical debt.

The Core Shift: Specifications become the source code

This isn't metaphorical. Specifications become your literal source code:

Specs are permanent; code is temporary. You maintain specifications. Code is generated and regenerated as needed.

Generate implementations, tests, and documentation from specifications. They all derive from the same source of truth, so they can't drift out of sync.

When technology changes, regenerate, don't rewrite. The specification stays the same. The output changes.

Principles for Future-Proof Software

Specifications First

Treat specifications as first-class artifacts. Version-controlled, peer-reviewed, and tested for consistency. They're your single source of truth. Everything else generates from here.

Knowledge for LLMs

Structure your knowledge so AI can reason about it effectively: Use vector embeddings for semantic search. Track provenance, where data comes from, when it was created, who owns it. Design for different memory types: working, long-term, episodic, semantic. Use knowledge graphs to enable multi-hop reasoning across complex relationships.

Less Is More

Every line of code is a liability requiring maintenance. Every dependency adds complexity. Every feature must be justified.

Ruthlessly cut complexity. Before adding anything, ask: is this necessary or merely convenient? Can we solve this with what we have?

Lean systems are adaptable systems. Complexity is the enemy.

Never Pour Concrete

Avoid irreversible decisions. Cloud vendor lock-in. Proprietary frameworks. Tightly coupled AI providers. These are concrete that hardens and traps you.

Use clouds for commodities—compute, storage, networking. Abstract everything else behind interfaces. When something better emerges, you can switch.

Maintain the ability to change your mind. In a world where AI capabilities double annually, flexibility is survival.

Systems That Track Everything

Store event sequences, not just current state. Every action that changes your system becomes an event. Current state is derived by replaying events.

This gives you complete audit trails and lets you understand who changed what and when. When business logic changes, replay events with new rules.

Modular Architecture

Build discrete, loosely coupled modules with clean interfaces. Each module encapsulates a specific business capability. Communication happens through stable contracts.

This lets you replace or update components without touching the entire system. Specifications naturally encourage modularity—when you define interfaces explicitly, you create clean boundaries.

Abstract Dependencies

Wrap external services behind interfaces. Your business logic shouldn't mention Stripe or AWS or OpenAI directly. Create payment interfaces, storage interfaces, AI interfaces. The specific provider becomes an interchangeable implementation detail.

This applies to payment processors, databases, AI models, vector stores—anything external. It's extra code upfront. It pays dividends when you need to switch providers or when breaking changes happen.

Generate Tests

Tests should derive from specifications, not be maintained separately. Specify what the system should do; generate tests that verify those specifications are met.

This ensures tests never drift from requirements. When specifications change, regenerate tests. Tests become another compiled artifact rather than a parallel codebase you maintain manually.

Build Observability

Build logging, metrics, and tracing in from day one. You can't maintain what you can't understand.

This is especially critical for AI systems. When an LLM gives an incorrect answer, you need to trace back: what data was retrieved? What context was provided? What embeddings were used? What model responded? Without observability, debugging AI systems is impossible.

Small Teams Win

Large teams move slowly. Communication overhead scales exponentially. Small autonomous teams of 6-8 people move with remarkable speed.

Everyone understands the context. Decisions happen naturally. Clear ownership emerges. Constraints breed elegant solutions.

A focused small team with clear specifications will outperform a large team managing complex legacy systems.

Why This Matters for AI

The AI landscape changes weekly. Models improve. Best practices evolve. Architectural patterns emerge and sometimes vanish in months.

Traditional software development assumes relatively stable technological foundations. You pick a stack and use it for years. AI breaks that assumption completely.

Specification-driven development thrives in this chaos. When implementation details change weekly, having a stable specification layer becomes invaluable. Your spec says "classify customer sentiment"—the specific model, prompting strategy, and embedding approach become generation-time decisions, not baked-in assumptions.

Abstract your AI integrations. Today's best model is next month's commodity. Today's cutting-edge architecture is next quarter's anti-pattern. Maintain the flexibility to adopt improvements as they emerge.

The Path Forward

This transformation doesn't happen overnight. Start with one domain. One new feature or one problematic legacy component.

Write comprehensive specifications. Generate the implementation using AI. Generate the tests. Generate the documentation. Measure the results: time saved, quality improved, flexibility gained.

Then expand. Domain by domain, system by system. Small teams working on focused areas, each building on specifications. Each regenerating as better technologies emerge.

The organizations that move now will establish compounding advantages. Each quarter they adopt new AI capabilities faster than competitors. Each year the gap widens. Three years from now, they operate at a different speed entirely.

The question isn't whether AI will transform your business. It will. The question is whether your software can adapt fast enough to harness each wave of capability as it arrives.

Build systems humble enough to adapt. Treat specifications as your durable intellectual property. Generate implementations as temporary artifacts. Structure knowledge for AI reasoning.

The future belongs to companies that can adapt faster than the future changes.

Josh Price Portrait

WRITTEN BY

Josh Price

Josh Price is a lifelong technologist who has dedicated his career to improving the efficiency and effectiveness of the software development craft. He founded Alembic an eye to the future, and continues to relentlessly pursue his vision of simpler software for everyone.

Want to read more?

The latest news, articles, and resources, sent to your inbox occasionally.