LEFINNO KWOK
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Lefinno Kwok

Building things that bridge hardware and software — from 8-bit computers to AI-powered web applications.
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Modified SAP-1 ArchitectureBUS8-BIT BUSCLKADDRINSTRProgram Counter0→CO←CE←JMAR0←MIRAM 16×8[0]51→RO←RIInstruction RegNOP00←II→IOControl LogicClockRegister A00←AI→AOALU00→EO←SU←FIRegister B00←BIKeyboardOutput Display00←OICZDataAddressInstructionControl
Open Hand
Eigenvalue Spectrum
Sample Project ArchitectureCLIENTSGATEWAYSERVICESDATA / INFRARESTRESTgRPCgRPCgRPCWebSocketMQTTWeb DashboardReact + TSAdmin PanelReact + TSGame ClientGDScript + C#API GatewayGoAuth ServiceRustPayment ServiceRustGame ServerGoData PipelinePythonML RecommenderPythonBuild & ToolingPythonIoT ControllerC / C++PythonScripting & prototypingC / C++Algorithms & firmwareReact / Node / TypeScriptFrontend & UIRustCritical servicesGoGeneral servicesGDScript / C#Game development
Product Development Lifecyclenetlistgerberboard dimspinoutSTLPCBAspartsflashdeploySchematic Design
KiCadICCircuit design with symbols and netsPCB Layout
KiCadR1U1Routing traces and placing footprintsFabricationJLCPCB / OSHParkCuPPCuCoreCuPPCuManufacturing boards and assemblyChassis Design
FreeCADEnclosure modeling and mounting3D Printing
Anycubic / Bambu LabsRapid prototyping & enclosuresFirmware
ESP32 / Arduino1234567#include <esp.h>void setup() {gpio_init(LED);wifi_start();}Embedded C/C++ for peripheralsProduct AssemblySolder / testtop shellbottom shellFinal build, test & packagingIntegration
MQTT / BLE / WiFiMCUMQTTBLEsensorsDevice connectivity and deploy
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How my custom CPU executes

How I approach gesture recognition

How I architect full-stack apps

How I design hardware products

How I visualize neural inference

Software

Full-stack development with React, TypeScript, and modern web tooling.

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Hardware

PCB design, embedded systems, and computer architecture.

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AI / ML

Computer vision, neural networks, and machine learning pipelines.

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