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Notes from building api0 and our Rust tools: AI agents, MCP, Azure integration and Rust itself.

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🤖 AI agents & integration
aiOctober 3, 2026

AI in Companies Isn't 50 Use Cases. It's 3 Things.

Most generative and agentic AI projects fit into three categories: agents for customers, integration layers for systems, and copilots for employees. Here is why that lens beats a list of fifty use cases.

azureSeptember 5, 2026

Your Logic Apps Are a Graph, and the Azure Portal Only Shows You a List

Past a dozen workflows, an Azure Logic Apps estate stops being a list and becomes a graph connected by Service Bus queues and Event Grid topics. Here is why the portal cannot show you that graph, and what to do about it.

azureSeptember 5, 2026

How Far Did That Order Get? Tracing a Correlation ID Across Cosmos DB

A customer says their order never arrived. You have a correlation id and an Azure Cosmos DB account with more containers than anyone remembers. Here is why the empty results matter more than the full ones.

Connecting Claude to your own APIs? The api0 blog covers the gateway, OAuth and MCP setup in detail.Read the api0 blog →
📌 Why Rust?
rustApril 10, 2025

GC Pauses and Latency: The Hidden Cost of High-Level Languages

Java, Python, and JavaScript offer convenience, but garbage collection introduces unpredictable latency. Explore how runtime memory management affects performance in real systems.

rustApril 11, 2025

C Gives You Control, But at What Cost?

C avoids garbage collection and gives manual memory control, but opens the door to dangerous bugs. Explore real-world memory issues and why they matter.

rustApril 12, 2025

Rust: Memory Safety Without Garbage Collection

Rust gives you the performance of C with memory safety enforced at compile time. Learn how ownership and borrowing eliminate entire bug classes.

🗓 Latest articles
rustJuly 14, 2025

How do you store a closure in a struct?

Storing closures in structs using generic parameters, trait objects, and lifetime annotations with Fn, FnMut, and FnOnce bounds

rustJuly 14, 2025

Implications of iterating over a Vec with .into_iter() instead of .iter()

Understanding the differences between .into_iter() and .iter() when iterating over Vec, covering ownership implications and performance considerations

rustJuly 12, 2025

Rust's Higher-Order Functions: Powering Flexible Closures

Exploring higher-order functions in Rust for functional programming patterns

rustJuly 12, 2025

How do you handle lifetimes when returning a closure that captures variables from its environment?

Managing lifetimes when returning closures that capture variables, covering ownership transfer, lifetime annotations, and avoiding dangling references in Rust

rustJuly 12, 2025

Using closures versus regular functions ?

Analyzing performance overhead of closures versus regular functions in Rust, covering static dispatch, heap allocation, and optimization scenarios

rustJuly 10, 2025

Rust's Stateful Closures: Passing and Mutating Across Multiple Calls

Managing stateful closures in Rust for repeated function calls