Developer Guides & Tools

How to Embed Polypad Virtual Manipulatives in Your Web App 2025

Learn how to embed Polypad virtual manipulatives in React, Next.js, or plain HTML. Covers iFrame setup, localization, CSP fixes, and assignment flows.

How to Build AI Coding Assistants with Mistral API and LangChain in 2025

Build an AI coding assistant using Mistral API and LangChain with RAG, memory, and a FastAPI streaming endpoint. Complete 2025 tutorial with working code.

How to Verify SynthID Watermarks in AI Images Using OpenAI API 2025

Step-by-step guide to verifying SynthID watermarks in AI images using the OpenAI API, C2PA credentials, and FastAPI in Python 2025.

How to Audit and Secure GitHub Repository Access Permissions in 2025

Step-by-step guide to auditing GitHub repository access permissions, revoking stale collaborators, and automating access reviews in 2025.

How to Upgrade from OpenBSD 7.8 to 7.9 on amd64 Servers (2026)

Step-by-step guide to upgrade OpenBSD 7.8 to 7.9 on amd64 servers, covering signify verification, bsd.rd boot, sysmerge, hw.blockcpu, and syspatch.

Migrate from FiveThirtyEight-Style Data Dashboards to Observable Framework: 2025 Guide

Migrate FiveThirtyEight-style dashboards to Observable Framework, Evidence.dev, Grafana, or Svelte+LayerCake. Self-hosted, open-source alternatives for 2025.

How to Add LLM Guardrails to a Self-Hosted 8B Model with Forge in 2025

Learn how forge-guardrails takes a self-hosted 8B model from single digits to 84% on agentic tasks. Proxy, WorkflowRunner, and middleware modes explained.

Railway vs Render for Node.js Deployments: 2025 Comparison

Railway vs Render for Node.js in 2025: pricing, uptime data, deploy workflows, databases, and a CI/CD hybrid strategy compared side-by-side.

How to View and Edit 3D Gaussian Splats with SuperSplat in Browser 2025

Complete tutorial: upload, edit, publish, and embed 3D Gaussian Splats using SuperSplat in-browser editor. Covers WebGPU, PLY files, iframe embed, and Three.js.

How to Integrate Google Search AI Overviews API into Next.js Apps 2025

Step-by-step guide to integrating Google Custom Search JSON API with AI Overviews into a Next.js 14+ App Router app using TypeScript server actions.

Polymarket API vs Kalshi API for Real-Time Prediction Market Data 2025

Polymarket API vs Kalshi API compared for real-time prediction market data in 2025. Auth, WebSockets, rate limits, compliance, and working Python code examples.

How to Run the Virtual OS Museum on macOS with UTM in 2025

Step-by-step guide to running the Virtual OS Museum on macOS with UTM in 2025. Import 1,700+ pre-installed OSes on Apple Silicon or Intel Mac.