Skip to content
View N0FreeLunch's full-sized avatar
so much to know
so much to know
  • Yokohama, Japan
Block or Report

Block or report N0FreeLunch

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Please don't include any personal information such as legal names or email addresses. Maximum 100 characters, markdown supported. This note will be visible to only you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse

Programming is the writing contains semetic consistency about the domain story

  • 👋 Hi, I’m @N0FreeLunch
  • 👀 I’m interested in programming language theory, concurrency programming, beautiful code, semantic abstract
  • 🌱 I’m currently learning Laravel TDD/DDD, DDD with function composition (JS), ReactJS, Golang, Agile software development
  • ⭐ I’m a specialist to deal the complexity of software

Main Skill

  1. Javascript : Regexp, DOM manipulation, FP(RamdaJS), OOP, Prototype knowledge, Webpack, event-loop/callback-queue knowledge, blocking/non-blocking, sync/async, React(Mui, rendering optimization)
  2. PHP : PHP8+, OOP, RFC/Reference Analysis, Pest(Test Framework)
  3. Laravel : IOC/DI, RESTful API, EloquentORM, Collection, Batch(Scheduler, Queue, Job), Middleware, Validation(+Customizing), Page Session, API session(Sanctum)/JWT/token Authentication, Event/Listner, Schema/Data Migration, DDD(Layered Architecture, Bounded Context, Ubiquitous Language, Specification Pattern)
  4. AWS : EC2(ALB, Spot Instance, Auto scale), Lambda, RDS, cloudfront, cloudwatch, S3, Athena, Route53, SES/SNS, API Gateway, IAM, Elastic Cache, ECS(EC2, cloudformation), Secret Manager
  5. Database : MySQL, Redis, SQLite, PostgreSQL, ERDiagram
  6. Web knowledge : HTTP protocol standard, nginx(php server, proxy server, static contents server), SSL certification (let's encrypt), Web security (XSS, SQL Injection, Code/File Injection, CSRF, TLS ...), Secure coding
  7. CSS : SASS, Responsive web
  8. OS Environment : Linux(AMI, Ubuntu, CentOS, Debian, Alpine), OSX, WSL, Shell Script (Bash)
  9. Docker : YAML, docker compose


  • Python : django, gunicorn , numpy, pandas, keras, jupyter notebook, pyplot ...
  • Node : Express, pm2, nodemon, VueJS, Jquery, Bootstrap ...
  • Data visualization : P5, D3
  • etc : wordpress, object storage

Experience (student)

  • Java, C
  • capstone : Transmitting sensor data aduino necklace to smartphone in kindergarten service (Cordova mobile application processes a lot of data from BLE using JS event loop)


  • School of computer information department (~ 2018.03)
  • ADtech corporation 2018.06 ~ 2021.09
  • PinTech corporation 2021.10 ~


  • 8.x 9.x 10.x

Work (Pin Tech)

House rent payment system for real estate company

2022 (Major task)

  • Docker setting (To define auto webpack building and composer installing process with considering security and maintanace when deploy build system) (shell script, linux user and file/foler permission, composer, NVM, NodeJS, webpack)
  • HTTP request/response logging system (Laravel middleware, Event/Listener, singleton pattern)
  • Refactored code MC to MVC architecture structure using laravel-admin library (Layer separation, EloquentORM, interface, abstract class)
  • Integrated a user payment status decision logic was separated and improved status logic with more complexity (Eloquent ORM, drawing flow chart, defining binded context)
  • Made a batch process that makes zengin file used on Japan interbank payments system. (Add docker queue container, S3, MinIO, Laravel queue/scheduler, eloquentORM chunk, php file handler)
  • Version upgrade overcoming the limitation of libraries (webpack:laravel-mix, sass, VanilaJS, Bootstrap, Jquery)
  • Improved code to verify PCIDSS(Payment Card Industry Data Security Standard) compliance. (first verification passed)
  • Made a module that controls the changes in complexity domain logic for recurring billing start condition.
  • Refactored batch processes uses table/record lock to queue/job base code.
  • Refactored mud-ball code to groupifided well defined domain context code and testable code.
  • Refactored query builder base code to eloquentORM with the concept of specification pattern.
  • Refactored incorrect migration data, incorrect seedings, incorrect rollback processes to the right way.
  • PHP and Laravel version upgrade. (Laravel 5.8 to 8.x, php 7.3 to 8.1)

2023 (Major task)

  • Made batch cancellation APIs and artisan commands. (artisan console, queue, job)
  • Improved a batch process create Invoices and Reports using queue/job/triggered by an administrator instead of being solely batched by the scheduler. (job, queue)
  • Added batch execution API for QA to test batches. (middleware that resctirct production environment, artisan console)
  • Improved bulk change feature for user contract and payment status.
  • Refactored the accounting file generation batch. (query builder to eloquent)
  • Enhanced account payment system to use saved information when a time file is uploaded.
  • Project code quality management. Production server deploy schedule management.
  • Project design and task assignment considering path dependence and nudge in social psychology.
  • Adoption of static analysis tools. (larastan)
  • Refactored card payment system code. Adding unit test. Improving retry payment feature. (Payment API mocking, pest, writting test scenario, customize type that restrict date string, value object)
  • Improved code to verify PCIDSS compliance. (customized validation)
  • NodeJS and JS pacakge version upgrade (Node16 to 20 LTS)
  • Improved invoices and reports for changing Japan invoice policy. (Laravel blade, Code refactor using the parial concept)
  • Added parent companies management system that enables to manage child companies. (customizing library session middleware, singleton pattern)
  • Created a smart login feature that allows parent accounts to login to child accounts. (customizing middleware, CSRF, dealing complex M:N relation matching logic, Api Token Login, JS OOP)

2024 (Major task)

  • Created a logging feature that record deprecated syntax. (laravel logging/job, monolog libray)
  • Added feature test environment. (pest, pgsql/sqlite(inmemory), model factory, fakerPHP)
  • Refactored email sending logic to encapsulate domain constraints. Fixed bug bank account register logic. (TDD)
  • Adding end-user entry form customize feature ((env: pnpm, Vite, SWC, TS), (React: Zustand, SWR, session storage, react-router, Mui, Feature-Sliced Design), eloquent-collection/resources, CORS, server API (TDD))

Work (AD tech)

SSP (supply side platform) developer, challenging DSP (demand side platform) part

AD server development

  • Script for showing advertise to media web site from AD network. Being published in media site web page advertise area. (Vanilla JS, webpack(Code Obfuscation), DOM manipulate)
  • Crawling advertise sending report and monthly bill data from AD network web site. (php, nodejs, login with hacking cookie saving logic)
  • Maintenance web service that site owner request advertise script. (Laravel)

AD network development

  • Admin service and user client service development/management/maintenance (Laravel, Vue2, vue-router, JWT)
  • API server development/management/maintenance (Gin framework, connection pool, EC2)
  • Batch server management/maintenance (AWS Lambda)
  • Serving server management/maintenance (Gin framework, connection pool, EC2, auto scale, Spot instance)

The Others

Video service

  • Video service web site management/maintenance (30~40TB/month traffic video contents server, 30~50GB/month web page traffic server with Laravel)

E-Commercial site web page

  • Listing and showing similar clothes with clothes picture using artificial intelligent API in EC site. (Vanilla JS, webpack, SASS, FP, DOM manipulate, IE compatibility, CoreJS, Babel-polyfill)

Web system for people with disabilities

  • In-house web system (Domain group and domain layer design, EC2, SASS, Laravel Santurm (session authenticate protocol with ajax), Query result caching, ReactJS)


  • Static web site A (Laravel, AWS EC2, SASS, AWS lambda, AWS SES), B (ReactJS, Nginx, Google App script)


  • OS Migration : AMI -> AMI2 (with AWS Graviton)
  • Making recoverable servers with saving built server to EBS
  • Making server application building process with EC2 instance user data script
  • Applying SSL to outdated server with reverse proxy

I’m currently learning



  • To learn OOP FP abstraction programming with PHP
  • Basic php programming practice without web framework
  • Design pattern
  • FP


  • To learn standard laravel coding style and best practice
  • DDD
  • practice


  • To learn concurrency programming with go routine and channel
  • To make superfast micro service, short latency response server, many request processing server
  • To learn the reason of Golang design has different design philosophy comparing with other programming languages
  • golang practice


  • To understand user inteface with reactive architecture (UI = view(state or store))
  • practice

lay the ground work (go back to basics)


Future plan

  • Elm : To learn functional coding architecture, understand redux principle
  • Elixir : To improve pure functional programming skill. To understand actor model
  • Scala : To understanding integration funtional programming and object oriented programming
  • C++ : To learn avida(evolution simulator), automata theory, formal language
  • Rust : To understand concurrency programming without garbage collector
  • Python : To learn mathematics using programming, bioinformation, semantic information theory with machine learning, Alphafold
  • Haskell : To learn mathematical logic and understand the equivalence of Turing machines and lambda calculus
  • Verilog : To make a system with boolean algebra


  1. PHP_Laravel-Development-Note PHP_Laravel-Development-Note Public


  2. Laravel-DDD-Note Laravel-DDD-Note Public

    [Book report] Domain Driven Laravel

  3. Javascript-Development-Note Javascript-Development-Note Public


  4. react-study react-study Public


  5. webpack webpack Public

    [Ko] How to create static website with webpack?

    HTML 1