Migration toolkit: Microsoft Exchange 2019 to Stalwart Mail Server (emails, calendars, contacts, distribution groups)

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

Windows and Ubuntu virtual machine images and Vagrant boxes with Packer

Vietnamese Keyboard

Windows 11/2022/2025 Base Vagrant Box (https://app.vagrantup.com/rgl)

MailScanner v5

All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV).

DiskDB is a high-performance, disk-based key-value database built with Rust, leveraging RocksDB as its storage engine. It is designed as a Redis-like alternative but optimized for persistent storag…

Bootstrap Kubernetes the hard way. No scripts.

The FRRouting Protocol Suite

GoodbyeDPI — Deep Packet Inspection circumvention utility (for Windows)

Repository of yara rules

Open source ARC implementation

KMS Emulator in C (currently runs on Linux including Android, FreeBSD, Solaris, Minix, Mac OS, iOS, Windows with or without Cygwin)

Script for generating a whitelist for Postfix's Postscreen based on large senders' SPF records

🕵️‍♂️ All-in-one OSINT tool for analysing any website

This repo covers Kubernetes with LABs: Kubectl, Pod, Deployment, Service, PV, PVC, Rollout, Multicontainer, Daemonset, Taint-Toleration, Job, Ingress, Kubeadm, Helm, etc.

Bootstrap Kubernetes the hard way on Google Cloud Platform. No scripts.

Deploy a Production Ready Kubernetes Cluster