Knowledge Base

Practical engineering insights for teams building high-impact digital products.

Case-driven notes from production work across Web3, modern web platforms, and performance-critical user experiences.

How to Develop an AMM on Solana with Anchor

A hands-on tutorial for building an Automated Market Maker on Solana using Anchor — constant-product formula, LP tokens, PDAs, and full swap/deposit/withdraw flow.

SolanaAnchorDeFi

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Safouene Ben Fredj•3 months ago

Building a Custom RPC Layer for Plasmo Browser Extensions

Learn how to build a JSON-RPC 2.0 communication system between injected page scripts, content scripts, and background service workers in a Plasmo extension.

PlasmoBrowser ExtensionsTypeScript

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Safouene Ben Fredj•3 months ago

Real-Time Solana Token Tracking with WebSocket and Next.js

Stream live Solana token data to a Next.js UI using WebSocket subscriptions, NestJS gateways, and on-chain event listeners.

SolanaWebSocketNext.js

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Safouene Ben Fredj•3 months ago

Build a Peer-to-Peer Token Swap on Solana with Anchor

Build a trustless P2P token swap on Solana with Anchor — escrow accounts, maker/taker flow, and cancellation logic.

SolanaAnchorDeFi

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Safouene Ben Fredj•3 months ago

Designing a Non-Custodial Solana Wallet with PDAs

Architecture guide for building a non-custodial Solana wallet using PDAs — programmable accounts, session keys, and guardian recovery.

SolanaAnchorWallet

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Safouene Ben Fredj•3 months ago

Building a NestJS Backend for Solana dApps: Architecture Guide

Design a production-ready NestJS backend for Solana dApps — modular services, transaction simulation, WebSocket gateways, and RPC health checks.

NestJSSolanaBackend

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Safouene Ben Fredj•3 months ago

Dockerize and Deploy a Solana Full-Stack App with GitHub Actions

Containerize a Next.js + NestJS Solana dApp with Docker and automate deployment with GitHub Actions CI/CD pipelines.

DevOpsDockerSolana

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Safouene Ben Fredj•3 months ago

Create and Deploy SPL Tokens on Solana: A Complete Guide

Mint, configure, and deploy SPL tokens on Solana — from CLI basics to Metaplex metadata and production deployment.

SolanaSPL TokensWeb3

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Safouene Ben Fredj•3 months ago

How to Build a Liquidity Locker on Solana with Anchor

Build a time-locked liquidity locker on Solana using Anchor — PDA vaults, SPL token escrow, unlock schedules, and frontend integration.

SolanaAnchorDeFi

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Safouene Ben Fredj•3 months ago

Build an AI-Powered NFT Generator on Solana with Next.js

Combine AI image generation with Solana NFT minting — generate art, upload to Arweave, and mint with Metaplex in a Next.js app.

AINFTSolana

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Safouene Ben Fredj•3 months ago

How to Add Solana Tools to OpenClaw

Build an OpenClaw plugin that gives AI agents the ability to interact with the Solana blockchain — check balances, send transfers, and call Anchor programs.

SolanaOpenClawAI Agents

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Cyber Vision•3 months ago

Build a Coinflip dApp with Anchor & Rust on Solana

Learn how to build a provably fair on-chain coinflip game on Solana using Anchor and Rust — from program logic to client integration.

SolanaRustAnchor

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Cyber Vision•3 months ago

Get Started with Plasmo for Browser Extensions

Build modern Chrome and Firefox extensions with React, TypeScript, and the Plasmo framework — no webpack config needed.

Browser ExtensionsReactTypeScript

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Cyber Vision•3 months ago

Solana React Basics: Building Your First dApp

A hands-on guide to connecting a React frontend to the Solana blockchain — wallet adapters, reading on-chain data, sending transactions, and integrating Anchor programs.

SolanaReactWeb3

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