Essays by Ry Walker

Essays on AI, startups, and software engineering by Ry Walker, founder of Tembo and Astronomer.

allagentsaiapisarchitectureastronomerautomationbottleneckbuild-vs-buybusiness-modelcode-reviewcoding-agentscommunicationcompetitioncontextcontext-engineeringcoordinationculturecustomer-developmentcustomer-successdatadecision-makingdeveloper-experiencedeveloper-toolsdevexeconomicsengineeringenterpriseevaluationexperiencefoundersfundraisingfuturego-to-marketgovernancegrowthgtmhuman-in-the-loopincentivesinfrastructureintegrationintuitionjudgmentknowledge-managementknowledge-workkubernetesleadershiplearningmaintenancemanagementmarketmarketingmeasurementmemorymoatsnuanceobservabilityopen-sourceoperationalizationoperationsoutboundpersonalpersonal-agentspersonalizationphasespitchingplatformplatformsplaybookprocessprocurementproductprototypingqualityragreasoningrecommendationsretentionreviewsalessecurityseedshippingskillssoftware-engineeringstartupsstorytellingstrategytembotoolingtrustunit-economicsworkflow
Apr 29, 2026Catch the Buyers Before They Become Builders

Mature dev orgs build their own agent infrastructure. Less mature orgs buy. The platform opportunity is a maturity gradient, and the play is the PostHog playbook applied to agents.

Apr 28, 2026Flexibility Is Not Optional for Agent Platforms

Multi-CLI, multi-model, multi-repo, self-hosted, and pluggable integrations are table stakes. No enterprise wants to be locked into one vendor's harness.

Apr 26, 2026Agent Build Versus Buy: Why Engineers Keep Building It Themselves

An engineer can ship a working agent harness in a week and a half. Code is cheap. So what does a paid agent platform offer that a week of engineering does not?

Apr 25, 2026The Harness Is Commoditized. Everything Else Is Not

The agent harness — Claude Code, OpenCode, Goose, Aider — is a commodity. Companies migrate between them freely. The defensible layers are context, orchestration, and tools.

Sep 8, 2025The AI Coding Middleware Moment

AI coding is purely ephemeral — zero switching costs, no persistent IPs, no DNS lock-in. That is the rare condition that lets a horizontal middleware layer win.

Sep 6, 2025The Multi-Agent Platform Play

Nobody knows which AI coding agent actually works best because no platform runs them side-by-side. That is the opening for a horizontal layer that serves the customer, not the model.