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I'm Tan Jin Chun (Nigel), a physical design engineer in Kuala Lumpur. I build tools for chip-design workflows and research uncertainty-aware monitoring.

Hackathon projects

Jaga 3rd place · Codex Malaysia 2026 Scam checks across web, Telegram and an ESP32 voice companion. Code · Demo · Award & story	Waddle Winner · Dollar Track · AI.SEA $1 Sprint Supplier discovery and procurement conversations for SMEs. Code · Product · Recognition
Kintsugi Notes Iteration Machine · Special Prize · DSH Hacks V1 Turns study mistakes into explanations and targeted practice. Code · Demo · Award	Persephone Top 5 finalist · Robotics & Physical AI · Agentic AI Build Week An ESP32 voice badge that turns audience questions into a shared Q&A feed. Code & firmware · Architecture · Recognition

_{Jaga, Waddle and Persephone are team projects with Nathan Hor. Kintsugi Notes is an individual project.}

Research: ConfoSense — forecasting, conformal prediction and reliable building alerts.

More projects & recognition

Project	Highlight	Explore
Presence Postcard	1st place · AR Track, Pacific Portal XR 2026	Project overview
Purrmit	Top 3 finalist · Lovable Healthcare Operations	Code · Demo
Quipus	Conversation memory and compact recording hardware	Code
RoomLab	Multiplayer spatial learning prototype	Code

Also: ProcurePilot · GotongFlow · OCI field tools

Open source

IC design OpenROAD 3 open OpenROAD flow scripts 2 open KLayout 1 closed OpenRAM 2 merged · 1 open LibreLane 1 open	AI & data LangChain.js 4 open Hugging Face Datasets 1 merged · 7 open LeRobot 1 open Ollama 2 open pandas 1 open ROOT 1 open	Developer tools Ruff 2 closed Prettier 1 closed pytest 1 open Snakemake 1 open 8f4e 11 merged · 4 open FleetPilot 2 merged vibeCI 1 merged Pyrite 1 merged

More repositories
langgenius/dify _{3 open}

Explore all 54 pull requests

Repository	Pull request	Status
8f4e/8f4e	#1115 · docs(compiler): add a runnable public API quickstart	Open
8f4e/8f4e	#1114 · test(compiler): cover unsigned shifts and notZero at runtime	Open
8f4e/8f4e	#1113 · fix(tokenizer): avoid temporary source-line pairs	Open
8f4e/8f4e	#1111 · fix!: use allocation-unit terminology for memory layouts	Merged
8f4e/8f4e	#1101 · fix(semantic-utils): remove unused block depth cache	Merged
8f4e/8f4e	#1100 · fix(stack-analyzer): validate localSet float widths	Merged
8f4e/8f4e	#1093 · fix(tokenizer): reject non-ASCII entity names	Merged
8f4e/8f4e	#1091 · fix(memory-reference-resolver): preserve float64 metadata bounds	Open
8f4e/8f4e	#1090 · fix(memory-planner): preserve float64 array value types	Merged
8f4e/8f4e	#1089 · fix(tokenizer): preserve exponent signs in compile-time expressions	Merged
8f4e/8f4e	#1088 · fix(wasm-codegen): preserve one-element array initializers	Merged
8f4e/8f4e	#1087 · fix(tokenizer): reject overflowing hexadecimal and binary literals	Merged
8f4e/8f4e	#1082 · fix(tokenizer): invalidate cached ASTs after source edits	Merged
8f4e/8f4e	#1080 · fix(project-preparser): preserve note block content	Merged
8f4e/8f4e	#1078 · fix(compiler): reject invalid array sizes	Merged
astral-sh/ruff	#29454 · [flake8-use-pathlib] Add an autofix for the last path component (PTH206)	Closed
astral-sh/ruff	#29453 · [flake8-use-pathlib] Add an autofix for extension access (PTH122)	Closed
ChristianHandy/FleetPilot	#111 · Add tests for scheduler settings and automatic updates	Merged
ChristianHandy/FleetPilot	#110 · Add tests for the example Slack notification plugin	Merged
huggingface/datasets	#8847 · Hide GPUs before spawning TensorFlow data workers	Open
huggingface/datasets	#8846 · Restore packaged type information and public re-exports	Open
huggingface/datasets	#8845 · Copy existing tensors without a PyTorch warning	Open
huggingface/datasets	#8844 · Warn once when resuming a shuffled dataset	Open
huggingface/datasets	#8843 · Fix mask resizing in the semantic segmentation guide	Open
huggingface/datasets	#8842 · Include the config name when no data files are found	Open
huggingface/datasets	#8841 · Handle UTF-8 BOMs in every JSON input file	Open
huggingface/datasets	#8840 · Fix indices buffer loading in Dataset.from_buffer	Merged
huggingface/lerobot	#5004 · Add image size and JPEG quality controls to dataset viewer	Open
KLayout/klayout	#2516 · Use explicit LEF files without directory scanning	Closed
langchain-ai/langchainjs	#11975 · feat(mcp-adapters): support progress timeout resets	Open
langchain-ai/langchainjs	#11974 · fix(google-common): preserve anyOf tool schemas	Open
langchain-ai/langchainjs	#11973 · fix(core): preserve routes and per-input errors in router batches	Open
langchain-ai/langchainjs	#11972 · fix(openai): preserve request options when streaming	Open
langgenius/dify	#44372 · refactor(web): share workflow comment queries and mutations	Open
langgenius/dify	#44360 · refactor(web): use Console Query in the install form	Open
langgenius/dify	#44359 · fix(web): avoid redundant indexing notifications	Open
librelane/librelane	#1053 · KLayout: make DEF layer map optional	Open
ollama/ollama	#19097 · Avoid reusing runners after cancelled startup	Open
ollama/ollama	#19096 · Handle servers that ignore download ranges	Open
pandas-dev/pandas	#71269 · BUG preserve error bars when plot labels are changed	Open
piyush588/vibeCI	#14 · Add Bun test runner detection	Merged
prettier/prettier	#20312 · Keep method chains stable when the last argument expands	Closed
pyrite-wiki/pyrite	#1007 · fix: use the package version in OpenAPI	Merged
pytest-dev/pytest	#15197 · Escape unencodable names in PYTEST_CURRENT_TEST	Open
root-project/root	#23747 · [core] Fix shell detection with multiline commands	Open
snakemake/snakemake	#4346 · docs: document the minimum Pixi version for contributors	Open
The-OpenROAD-Project/OpenROAD	#11856 · dpl: respect oriented fixed macro footprints	Open
The-OpenROAD-Project/OpenROAD	#11815 · odb: avoid moved port names on buffered driver nets	Open
The-OpenROAD-Project/OpenROAD	#11814 · odb: require matching layers for pin abutment	Open
The-OpenROAD-Project/OpenROAD-flow-scripts	#4696 · fix(drc): preserve violations in nested report categories	Open
The-OpenROAD-Project/OpenROAD-flow-scripts	#4695 · fix(report): classify metric generation errors as failures	Open
VLSIDA/OpenRAM	#332 · docs: clarify setup and macro compiler options	Open
VLSIDA/OpenRAM	#331 · Report configuration syntax errors through the normal diagnostic	Merged
VLSIDA/OpenRAM	#329 · Load configuration files by path	Merged

_{Public upstream PRs · Updated 2026-10-21 · Auto-refresh ~6h}

Featured in

Hybrid Solar Lighting System Modular lighting powered by solar energy. Springwise ↗ · Innovation feature SDG7 Youth ↗ · Project spotlight

Toolkit

Focus	Tools & interests
Chip design	Physical design · STA · Power integrity · Innovus · Voltus
Software	Python · Tcl · C/C++ · TypeScript
Research & hardware	Time-series forecasting · Conformal prediction · ESP32

_{Beyond code: Monash industry advisory panel · Agora ambassador · Oracle ACE Associate.}