Articles on Web3 security, C# and .NET, architecture, technical leadership and hands-on data tools.https://jacano.github.io/https://jacano.github.io/blog/llm-endpoint-bench-choose-a-subscription/https://jacano.github.io/blog/llm-endpoint-bench-choose-a-subscription/I measured two $10 agent subscriptions from Seville, using the same model and four test phases, to decide which route to keep.Wed, 23 Sep 2026 00:00:00 GMTAI Toolinghttps://jacano.github.io/blog/deepseek-harness-opencode-commandcode/https://jacano.github.io/blog/deepseek-harness-opencode-commandcode/How I connected Command Code and OpenCode Go to DeepSeek Harness, and why the built-in tokens-per-second readout is useful when an agent makes many calls.Sat, 19 Sep 2026 00:00:00 GMTAI Toolinghttps://jacano.github.io/blog/see-every-packet-lan-windows-arp-mitm/https://jacano.github.io/blog/see-every-packet-lan-windows-arp-mitm/A lab guide to capturing traffic from an authorized device on a Windows LAN with Npcap, Wireshark, Scapy, and an ARP relay.Wed, 16 Sep 2026 00:00:00 GMTNetworkinghttps://jacano.github.io/blog/understand-electricity-patterns/https://jacano.github.io/blog/understand-electricity-patterns/An unofficial Python client for the e-distribucion private area. It downloads hourly readings so you can compare tariffs and check contracted power.Mon, 14 Sep 2026 00:00:00 GMTEnergyhttps://jacano.github.io/blog/web3-security-posture-management/https://jacano.github.io/blog/web3-security-posture-management/Why smart-contract audits are not enough when signers, permissions, oracles, and other parts of a Web3 system keep changing.Wed, 15 Jul 2026 00:00:00 GMTWeb3 Securityhttps://jacano.github.io/blog/c-sharp-native-interop/https://jacano.github.io/blog/c-sharp-native-interop/Lessons from maintaining C# bindings for C and C++: choosing between P/Invoke and C++/CLI, avoiding unnecessary copies, managing native memory, and packaging for the runtimes you support.Sat, 02 Aug 2025 00:00:00 GMTC# / C++https://jacano.github.io/blog/lead-remote-engineering/https://jacano.github.io/blog/lead-remote-engineering/Practical notes on leading a distributed engineering team: useful rituals, space for people to solve problems, delivery metrics, and hiring.Tue, 20 May 2025 00:00:00 GMTLeadershiphttps://jacano.github.io/blog/hello-world-why-i-started-blog/https://jacano.github.io/blog/hello-world-why-i-started-blog/Why I started writing down lessons from software development, Web3 security, native interop, architecture, and technical leadership.Thu, 10 Apr 2025 00:00:00 GMTPersonalhttps://jacano.github.io/blog/realtime-mobile-object-detector-xamarin-android/https://jacano.github.io/blog/realtime-mobile-object-detector-xamarin-android/How a Xamarin.Android sample used TensorFlow Lite, native NV21-to-RGB conversion, and SkiaSharp to detect a hardhat at about 7 fps.Thu, 04 Jul 2019 00:00:00 GMTArchive · Xamarinhttps://jacano.github.io/blog/wasm-sample-mono-webassembly-sdk/https://jacano.github.io/blog/wasm-sample-mono-webassembly-sdk/A small 2019 sample showing .NET running in a browser through WebAssembly and Mono.WebAssembly.Sdk.Sat, 04 May 2019 00:00:00 GMTArchive · WASM