はじめに 以前 Research→Experience API を作りました という記事で、FastAPI + PostgreSQL(pgvector) で「ビジネス課題 → 関連論文探索 → 示唆」を返す API を紹介しました。 今回は、この API を体験できるフロントエンド UI を Next.js（Vercel）ブログの /portfolio/r2e に追加した実装記です。バックエンドは Render の無料枠で動かしています。 完成したもの URL: /portfolio/r2e 機能: 3タブUI（Search Continue reading R2E APIのデモUIを作りました！Next.js + Render でバックエンド連携する実装記
(And Why I Don’t Regret Paying for a Single One) Freelancing in tech is exciting—but it’s also chaotic. Between managing clients, writing clean code, building personal projects, and trying to Continue reading The 7 Paid Subscriptions I Use in 2025 as a Freelance Software Developer
Building a Dark Mode Toggle in React With Tailwind CSS Dark mode is a popular feature that improves readability and reduces eye strain in low-light environments. With Tailwind CSS and Continue reading Building a Dark Mode Toggle in React With Tailwind CSS
Mastering Copy and Clone traits in Rust Introduction In Rust, the Copy and Clone traits are fundamental to managing value duplication. While they may seem similar, they represent two distinct Continue reading Mastering `Copy` and `Clone` traits in Rust
Mastering Copy and Clone traits in Rust Introduction In Rust, the Copy and Clone traits are fundamental to managing value duplication. While they may seem similar, they represent two distinct Continue reading Mastering `Copy` and `Clone` traits in Rust
A Complete Guide to Rust Variables, Ownership, Lifetimes, and Memory Management Index Foundation: Mental Model Aliasing XOR mutability principle Prerequisites and goals Variables in Rust Immutability by default Mutable variables Continue reading A Complete Guide to Rust Variables, Ownership, Lifetimes, and Memory Management
Linked Lists in Rust 1.90.0: A Comprehensive Technical Guide Introduction Linked lists represent one of the most challenging data structures to implement correctly in Rust due to the language’s strict Continue reading Linked Lists in Rust 1.90.0: A Comprehensive Technical Guide
October was a busy month. I set out to make useful contributions across a few repos and ended the month with four pulled PRs. Below is a short, friendly summary Continue reading October Recap – my first Hacktoberfest
What if a single overlooked leverage point could ground an entire nation’s air travel? The U.S. air traffic control crisis isn’t just about delayed flights—it’s a wake-up call for anyone Continue reading The Shocking Truth Behind America’s Air Traffic Control Meltdown (And Why Your Business Could Be Next)
Como ajudar as pessoas a contribuirem com seu projeto Open Source Morganna ・ Oct 29 #devchallenge #hacktoberfest #opensource #braziliandevs
What if the next tech giant isn’t a headline-grabber—but a stealth player quietly controlling over a billion users? While most of the world forgot about AOL, an unknown Italian company Continue reading The Billion-User Tech Power Play Hiding Behind AOL: Why Bending Spoons’ Silent Leverage Is Rewriting the Rules
Let’s face it! manual deployments are outdated. If you’re still SSH-ing into servers, running git pull, restarting services, crossing your fingers… you’re not just wasting time — you’re putting your Continue reading Tired of Manual Deployments? Let AI Automate the Process.
Ryan talks with Deepak Singh, VP of Developer Agents and Experiences at AWS and lead at Kiro, about spec-driven development in a vibe coding world. They explore how AI tools Continue reading Vibe coding needs a spec, too
In modern workflow and data management, converting Excel spreadsheets to PDF is a ubiquitous need—whether for client reports, archival purposes, or cross-team collaboration. PDFs excel at preserving formatting, ensuring compatibility Continue reading How to Convert Excel to PDF with Python
Building dynamic forms in Angular has always felt a little like assembling IKEA furniture without the instructions. But soon, there will be a simpler, more reactive way. One that actually Continue reading Goodbye FormArray. Hello Signal Forms.
