Hi everyone! I recently completed my Bachelor’s degree in Business IT (Informatique de Gestion) and just started my Master 1 in Cybersecurity (SSI). My background covers software development, databases, and IT management (Java, C++, SQL, Oracle, UML, ERP), but I lack deep technical foundations in low-level networking, Linux administration, and system security. My goal is to apply for a Master 2 under an Alternance (Work-Study) program abroad next year. To make my profile competitive for both university admissions and corporate technical interviews, what core technical skills, tools, or home lab projects (e.g., Active Directory, Wireshark, Linux, pfSense, TryHackMe) should I master on my own this year? Any study roadmap or resource recommendations would be greatly appreciated!