Engineering deep-dives, project stories, media coverage, and lessons from building technology that matters — by Rudra Sarker
This is where I document the journey behind the projects — the technical decisions, the competition wins, the lessons learned from failure, and the stories that never make it into a project README. From sign language translation hardware to open-source mental health platforms, each post is a window into how these ideas were built and why they matter.
You'll find hands-on technical breakdowns, honest reviews of developer tools, coverage of media recognition for Team SignTalk, and reflections on building technology with real-world impact. Knowledge grows when shared — this blog is my contribution back to the engineering community that shaped me.
Browse by category below, or visit the full blog hub for all posts.
Mar 20, 2026
How our team from SUST built a smart glove that translates sign language to speech — and won national and international recognition including Rice360 and SUST Innovation Hub funding.
Read More →Mar 20, 2026
How Team SignTalk became semifinalists at the Rice360 International Health Technology Design Competition, competing against global teams with our assistive glove technology.
Read More →Mar 20, 2026
A technical deep-dive into designing and building SightlineAI — AI-powered wearable eyewear that provides real-time environment awareness for people with visual impairments.
Read More →Mar 20, 2026
How I built an interactive 3D science laboratory for STEM education using Three.js and WebGL — making complex scientific concepts explorable and engaging for students.
Read More →Mar 23, 2026
How I built ScienceLab 3D — a free, open-source browser-based STEM platform with 40+ interactive 3D experiments in Physics, Chemistry, Biology & Mathematics using Next.js 15, TypeScript, and React Three Fiber.
Read More →May 9, 2026
An educational Python project for understanding network traffic behavior, rate limiting mechanisms, WAF responses, and defensive security research -- built for learning, not attacking.
Read More →May 9, 2026
A Go port of TrafficStudy using goroutine-based concurrency to explore how different language paradigms handle network traffic analysis and educational security research.
Read More →May 9, 2026
A two-stage learning framework for energy-aware null-space control of omnidirectional UAVs -- from SAC RL expert to lightweight XGBoost oracle with R2=0.99 fidelity at 0.057ms inference.
Read More →May 9, 2026
A machine learning framework classifying upper-extremity rehabilitation activities from wearable IMU data, achieving 92.5% accuracy under leave-one-subject-out validation.
Read More →Drones hovering, robots moving with perfect grace, even cruise control all rely on the hidden power of PID controllers. Learn how this elegant math enables precise, stable automation everywhere.
Read More →Mar 31, 2026
How I built an open-source edge AI platform that simulates 11 IoT devices, runs real-time anomaly detection with multi-agent AI, and makes autonomous decisions — all locally, zero cloud, zero cost.
Read More →Mar 31, 2026
How I built WorldSim AI — an open-source digital twin simulation platform with agent-based modeling, PyTorch ML, Three.js 3D visualization, IoT ingestion, distributed computing, and a plugin marketplace. 82 files, 9000+ lines, 6 versions shipped.
Read More →Remember those glowing stickers on old Nokia phones? With no battery, they lit up when a call arrived. Discover how these tiny marvels harvested RF energy and glimpsed a battery-free future.
Read More →Mar 20, 2026
SUST Innovation Hub selected Team SignTalk for pre-seed funding, marking our transition from a student project to a funded startup focused on assistive communication technology.
Read More →Mar 20, 2026
A roundup of all press coverage, media mentions, and recognition milestones for Team SignTalk and Rudra Sarker's engineering journey — from local media to international competitions.
Read More →May 9, 2026
A free, MIT-licensed AI text humanizer with a 4-layer pipeline, 13 AI providers, 500+ synonym swaps, 12-metric detection scoring, batch processing, and 16+ languages. No login required.
Read More →May 9, 2026
A complete quality gate for AI-assisted development -- security scanning, hallucination detection, logic validation, AI auto-fix with 4 LLM providers, IDE plugins, and team analytics.
Read More →May 9, 2026
A pure Python toolkit for validating repository structure, scoring project maturity (0-100), scaffolding manifests, and auditing open-source health. Plugin system, i18n, and full type annotations.
Read More →Apr 18, 2026
A deep dive into NexusAgent v1.0 — a privacy-first local AI framework with GraphRAG memory, auto skill generation, multi-agent orchestration, voice, cloud sync, IDE integration, and marketplace.
Read More →Mar 20, 2026
The full development story behind MindWell — how we built a privacy-first, open-source mental health platform from scratch, the technical decisions made, and what's next.
Read More →Mar 20, 2026
A curated tour of my open-source GitHub projects — from IoT firmware to web apps — including what each project does, the tech stack, and how to contribute.
Read More →Mar 27, 2026
How I built TermMind — an open-source AI terminal assistant supporting OpenAI, Claude, Gemini, Groq, Ollama, and more. 40+ commands, code analysis, session recording, and 227 tests.
Read More →Mar 27, 2026
An open-source code analysis tool with DNA fingerprinting, architectural decay detection, 38 lint rules across 5 languages, security scanning, and stunning HTML reports.
Read More →Mar 27, 2026
A free open-source developer roadmap platform with 17 paths, 800+ topics, 1700+ free resources, PWA offline support, certification tracking, and community features.
Read More →Mar 27, 2026
A curated catalog of 73+ publicly available sign language datasets for researchers, developers, students, and the deaf community. Every link verified, no fabricated data.
Read More →Mar 15, 2026
Explore MindWell — a privacy-first, open-source mental wellness platform offering 393 condition guides, 20 self-reflection assessments, offline mood tracking, therapy resources, and bilingual support.
Read More →Research papers and academic publications are in progress. Stay tuned for contributions in assistive technology, IoT systems, and engineering education.
Team SignTalk and Rudra Sarker's work has been featured in national and international media. From television coverage to newspaper articles, our assistive technology journey has reached audiences across Bangladesh and beyond.