Sebastian Wessel ArticlesArticles by Sebastian Wessel on software architecture, AI adoption, observability, data contracts, and controlled execution.https://sebastianwessel.de/en-usSpec-Driven Enterprise Deliveryhttps://sebastianwessel.de/articles/spec-driven-development/https://sebastianwessel.de/articles/spec-driven-development/How to give AI the context, constraints, and checks it needs to meet expectations.Thu, 28 May 2026 00:00:00 GMTSpec-Driven DevelopmentAI AgentsSoftware ArchitectureDeliveryWhy I Built PURISTA 3.0 Around AI Harnesshttps://sebastianwessel.de/articles/purista-3-ai-harness/https://sebastianwessel.de/articles/purista-3-ai-harness/How PURISTA 3.0 brings queues, streams, and typed AI agents into one service model for enterprise software that must be owned, tested, observed, and changed.Tue, 26 May 2026 00:00:00 GMTPURISTAAI HarnessTypeScriptOpen SourceWhy I Built Isostate: Visual Stories Without a Heavy Animation Stackhttps://sebastianwessel.de/articles/why-i-built-isostate/https://sebastianwessel.de/articles/why-i-built-isostate/How rebuilding the PURISTA website led to a YAML-first, SVG-native way to explain complex technical systems with scroll-driven or presentation-style isometric scenes.Fri, 22 May 2026 00:00:00 GMTIsostateDocumentationSVGOpen SourceType-Safe Database Clients with SurrealDB: Automating Schema Generationhttps://sebastianwessel.de/articles/type-safe-database-clients-with-surrealdb/https://sebastianwessel.de/articles/type-safe-database-clients-with-surrealdb/How generated Zod schemas, TypeScript types, and client helpers reduce drift between SurrealDB schemas and application code.Wed, 10 Jul 2024 00:00:00 GMTTypeScriptSurrealDBZodCode GenerationRunning TypeScript in a Sandbox: A Deep Dive into QuickJS and WebAssemblyhttps://sebastianwessel.de/articles/running-typescript-in-sandbox-with-quickjs/https://sebastianwessel.de/articles/running-typescript-in-sandbox-with-quickjs/How to run user-provided or AI-generated JavaScript and TypeScript in a controlled QuickJS WebAssembly guest runtime with explicit host capabilities.Mon, 20 May 2024 00:00:00 GMTTypeScriptWebAssemblySecuritySandboxWhy I Built PURISTA: A TypeScript Backend Framework for the Modern Erahttps://sebastianwessel.de/articles/why-i-built-purista/https://sebastianwessel.de/articles/why-i-built-purista/Why enterprise backend architecture should start with business capabilities, explicit contracts, and deployment shape as a runtime decision.Fri, 15 Mar 2024 00:00:00 GMTTypeScriptBackendFrameworkOpen Source