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Tips, tutorials, and perspectives from the tekko.id team about the digital and technology world.
Scaling Local-First: Reactive Postgres with ElectricSQL and PGLite
Discover how to eliminate latency and handle offline state by running Postgres in the browser and syncing it seamlessly with ElectricSQL.
Building Extensible SaaS with WebAssembly: A Guide to Extism and Go
Learn how to build secure, high-performance plugin systems for SaaS using WebAssembly, Go, and Extism to enable multi-language user code execution.
Polyglot Microservices with WASI 0.2 and the Component Model
Discover how WASI 0.2 and the WebAssembly Component Model enable secure, language-agnostic microservices with near-native performance and capability-based security.
Type-Safe Cross-Language Interop with Wasm Components and Spin
Discover how WASI 0.2 and the Wasm Component Model enable secure, language-agnostic plugin architectures for modern cloud-native applications.
Building Durable AI Agents with Temporal and LangGraph
Learn how to combine LangGraph's agentic reasoning with Temporal's durable execution to build fault-tolerant, long-running AI workflows that survive crashes and network failures.
Building Fault-Tolerant AI Agents with Temporal and LangGraph
Learn how to combine LangGraph’s agentic orchestration with Temporal’s durable execution to build production-grade, state-recoverable AI workflows.
Querying Multi-GB Parquet Files in the Browser with DuckDB-Wasm
Learn how to build high-performance client-side analytics by leveraging DuckDB-Wasm, Apache Arrow, and Parquet to query gigabytes of data with sub-second latency.
Scaling LLMs: Implementing Semantic Caching with Redis
Reduce LLM latency and costs by implementing semantic caching. Learn how to use Redis vector similarity search to reuse responses for semantically equivalent queries.
Implementing ReBAC: Building Zanzibar-Style Permissions with OpenFGA and Next.js
Learn how to implement Relationship-Based Access Control (ReBAC) in Next.js using OpenFGA to build scalable, multi-tenant SaaS permission systems.