An open-source exploration of free and self-hosted bulk messaging solutions across SMS, Email, Telegram, and WhatsApp, evaluating cost, scalability, infrastructure requirements, deliverability, and platform limitations.

Virtualization lab simulating a vSphere-style environment using VMware Workstation with custom networks, snapshots, hardening, and Windows Server/Client VMs.

Learn system administration by installing and configuring a virtual machine, covering topics such as virtualization, partitioning, LVM, SSH, security, and command-line tools.