dev.to
Latest items from this RSS source.
Building a Prop Firm Performance Dashboard with React & D3
Every trader needs a performance dashboard. Let's build a real-time prop firm performance tracker using React, D3.js, and some clever data visualization techniques. What We're Building A dashboard that shows: Equity curve with drawdown overlay Daily P&L b…
Understanding Futures Contract Specifications for Algorithmic Trading
If you're building trading algorithms for futures markets, getting contract specifications wrong will cost you money. Let's build a comprehensive contract specification library in Python. Why Specs Matter A single E-mini S&P 500 (ES) tick is $12.50. A Mic…
Prefect vs Airflow: Which Should You Self-Host?
Quick Verdict Airflow is the safer choice for self-hosted data pipeline orchestration. It's battle-tested, has a massive ecosystem, and its architecture is well-documented for self-hosting. Prefect offers a more modern, Pythonic API that's genuinely nicer to …
CORS Bikin Pusing? Hancurkan Pakai FBE "God Mode"!
Yo, Frontend Devs! Coba bayangin skenario ini: Lo lagi asyik koding web app impian lo. Idenya brilian, lo mau bikin dashboard tracker harga e-commerce, atau tool penganalisa SEO website kompetitor. Lo tulis fungsi fetch() pakai Vanilla JS. Lo tekan Save. Lo b…
fagent: memory-first AI agent runtime for long-running, interrupted workflows
Hi everyone! 👋 I’m a beginner developer fascinated by AI, neural networks, and agents. I built fagent, a memory-first AI agent runtime, because I noticed that most agent runtimes handle short tasks well, but struggle with long-running or interrupted workflows…
The Secret of Flowork OS's Dual Engine: Lightweight UI, Brutal Backend
Yo, fellow developers! Pernah nggak lo dapet komplain dari user kayak gini: "Bang, tiap buka web lu, kipas laptop gue langsung bunyi kayak mau *take-off!"* Atau lo ngerasa animasi hover di tombol UI lo jadi patah-patah (janky) pas web app lo lagi asyik nge-pr…
Why Your Team Isn't Using Copilot (And How to Fix It in a Day)
A senior developer described her experience with Copilot agent mode last week: "It feels like I'm babysitting sometimes." She has 10 years of experience and two masters degrees. She's not bad at her job. She's using a tool she was handed without enough contex…
When Software Is No Longer Designed Only for Humans: OpenClaw and the Rise of Digital Life
When Software Is No Longer Designed Only for Humans: OpenClaw and the Rise of Digital Life For the past 40 years, almost all software has shared one hidden assumption: the user is human. OpenClaw is starting to break that assumption. In early 2026, OpenClaw s…
Mengenal P2P Connector Berbasis Golang di Flowork OS (Bye-Bye Local API Server!)
Yo, devs! Pernah nggak lo dapet project bikin aplikasi web-based, tapi klien minta aplikasinya bisa langsung baca file di PC kasir, nge-print setruk langsung ke printer thermal lokal, atau jalanin script Python buat data science? Kalau lo pakai jalan ninja We…
Design Thinking : Ideate
This step is all about creating "How might we...?" questions and brainstorming as many ideas as possible for them. How - there is a possible solution might - many possible solutions we - together We want to make our HMW related to the user and their needs. We…
The Hidden Cost of MCP Tools: a 2.5x Token Reduction to Save 50% in Costs
Introduction I want to be clear: I'm not an AI guru. I'm just a developer running experiments with "agentic" programming in Go, trying to see what actually works once you move past the "Hello World" phase. After finishing this course about Langchain and LangG…
Beyond the Hype: Engineering Production-Ready Blockchain Applications
Beyond the Hype: Engineering Production-Ready Blockchain Applications Executive Summary Blockchain technology has evolved from cryptocurrency speculation to enterprise-grade infrastructure, yet most organizations fail to implement it effectively. According to…