uday_devops posts 4-phase Linux roadmap

- Linux educator uday_devops shared a four-phase mastery roadmap covering shell basics, sysadmin and networking, troubleshooting, then automation to scale skills. - A separate kernel compile guide from pp4mnkeasyos provides hands-on steps for building a custom Linux kernel, complementing the roadmap’s troubleshooting phase. - Together the roadmap and compile tutorial sketch a practical path from beginner shell work to production automation for sysadmins and devs. (x.com/i/status/2048734405028434073) (x.com/i/status/2049419954865201586)