GitSocial · Developer PassportCOMPLETED

refirst11 Sou Watanabe

living in Japan 🇯🇵 Initiatives is in low level and compiler related frontend tooling 🔌

github.com/refirst11

EVIDENCE BASE

43
Repositories
2730
Commits
891
Files analyzed
34
Technologies
263
Evidence
57
Active months

Based on 43 repository passports · 34/43 current

ENGINEERING PROFILE

Frontend
85%
Backend
14%
Testing
58%
DevOps
76%

CORE TECHNOLOGIES

HR: name + projects · Lead: + files/LOC · persistence Core≥4

TypeScript Core
LANGUAGE · 26/43 repos · 341 files · 30456 LOC
Depth 70 · HIGH
JSON Core
LANGUAGE · 24/43 repos · 100 files · 64796 LOC
Depth 70 · HIGH
Next.js Core
FRAMEWORK · 11/43 repos · 83 files · 2523 LOC
Depth 66 · HIGH
React Core
FRAMEWORK · 18/43 repos · 60 files · 4632 LOC
Depth 66 · HIGH
Markdown Core
LANGUAGE · 32/43 repos · 57 files · 2249 LOC
Depth 70 · HIGH
ESLint Core
QUALITY · 12/43 repos · 39 files · 60925 LOC
Depth 65 · HIGH
YAML Core
LANGUAGE · 17/43 repos · 32 files · 28960 LOC
Depth 70 · HIGH
Prettier Core
QUALITY · 17/43 repos · 32 files · 50074 LOC
Depth 61 · HIGH
JavaScript Core
LANGUAGE · 13/43 repos · 25 files · 544 LOC
Depth 70 · HIGH
npm Core
BUILD_TOOL · 24/43 repos · 24 files · 240 LOC
Depth 80 · HIGH
pnpm Core
BUILD_TOOL · 14/43 repos · 14 files · 140 LOC
Depth 80 · HIGH
Vue Recurring
LANGUAGE · 3/43 repos · 14 files · 501 LOC
Depth 70 · HIGH
React Router Emerging
LIBRARY · 1/43 repos · 6 files · 359 LOC
Depth 74 · HIGH
GraphQL Emerging
LIBRARY · 1/43 repos · 4 files · 279 LOC
Depth 77 · HIGH
Vite Recurring
BUILD_TOOL · 3/43 repos · 3 files · 93 LOC
Depth 36 · HIGH
Redis Recurring
CACHE · 2/43 repos · 2 files · 5555 LOC
Depth 65 · HIGH
XML Emerging
LANGUAGE · 1/43 repos · 2 files · 17 LOC
Depth 70 · HIGH
Serde Emerging
LIBRARY · 1/43 repos · 1 files · 25 LOC
Depth 48 · HIGH
Cargo Emerging
BUILD_TOOL · 1/43 repos · 1 files · 10 LOC
Depth 80 · HIGH
PostgreSQL Emerging
DATABASE · 1/43 repos · 1 files · 5480 LOC
Depth 61 · HIGH
Go Emerging
LANGUAGE · 1/43 repos · 1 files · 502 LOC
Depth 70 · HIGH
Yarn Emerging
BUILD_TOOL · 1/43 repos · 1 files · 10 LOC
Depth 80 · HIGH
Vitest Emerging
TESTING · 1/43 repos · 1 files · 6 LOC
Depth 19 · HIGH
Go Modules Emerging
BUILD_TOOL · 1/43 repos · 1 files · 10 LOC
Depth 80 · HIGH
Python Emerging
LANGUAGE · 1/43 repos · 1 files · 7 LOC
Depth 70 · HIGH
Rust Emerging
LANGUAGE · 1/43 repos · 1 files · 26 LOC
Depth 70 · HIGH
debug Emerging
LIBRARY · 1/43 repos · 1 files · 7489 LOC
Depth 54 · HIGH
Actix Web Emerging
FRAMEWORK · 1/43 repos · 1 files · 25 LOC
Depth 48 · HIGH
SQL Emerging
LANGUAGE · 1/43 repos · 1 files · 14 LOC
Depth 70 · HIGH
Dockerfile Emerging
LANGUAGE · 1/43 repos · 1 files · 15 LOC
Depth 70 · HIGH
TOML Emerging
LANGUAGE · 1/43 repos · 1 files · 11 LOC
Depth 70 · HIGH
Nuxt Emerging
FRAMEWORK · 1/43 repos · 0 files · 0 LOC
Jest Emerging
TESTING · 1/43 repos · 0 files · 0 LOC
Testing Library Recurring
TESTING · 2/43 repos · 0 files · 0 LOC

ENGINEERING HABITS

containerizationobserved
automated_testsobserved
documentationobserved
lintingobserved
formattingobserved
continuous_integrationobserved

Not observed ≠ does not know

PROJECT PORTFOLIO

plumeria_storybook npm
plumeria_next.js npm
pompom Go Modules
css-compiler-bench ESLint
pigment_next.js npm
nextjs-turbopack-feature-usage-repro npm
prettier-plugin-insert-comma npm
kpx npm

ACTIVITY & OWNERSHIP

Active months 57
Commits 2730
Owner authored 100%

PRIMARY PROFILE — HR VIEW

FrontendTypeScript · JSON · Next.jsHigh ownership

In 30 sec: direction — frontend, core — TypeScript · JSON · Next.js, 43 repos 2021 — 2026. No LOC or files — stability only.

DEVELOPER SIGNATURE

TypeScriptJSONNext.jsReactMarkdownHigh ownership

TECHNOLOGY EVOLUTION

2023
JavaScript · React
2024
TypeScript · Next.js
2025
TypeScript · PostgreSQL
2026
TS + Next

COMMUNITY / IMPACT not a skill rating

Stars 63
Forks 1
Watchers 27

EVERYTHING ABOVE IS TRACEABLE

43 repositories · 2730 commits · 891 files · 263 evidence

Absence of a technology in the passport does not imply lack of experience