Languages:
    C/C++|(T- ):
    Go-lang|(T- ):
      Frameworks:
        Gin|(T- );
    Java|(T- );
    Php|(T- );
    Python|(T- ):
      Frameworks:
        DRF|0(T- 8);
        FastAPI|(T- );
        Flask|(T- );
    Rust|(T- 2):
      Frameworks:
        Actix-web|(T- );
        Rocket|(T- );

  Database:
    SQL|(T- ):
      MySQL;
      PostgreSQL;
      SQL Alchemy;
      SQLlite;
    NoSQL|(T- ):
      MongoDB;
      Redis;

  Computer Networking:
    Protocols (OSI model by layer)|(T- ):
      Application layer;
      Presentation layer;
      Session layer;
      Transport layer;
      Network layer;
      Data link layer;
      Physical layer;
    Server|(T- ):
      Azure|(T- );
      GNU/Linux|(T- 2);
      Hosting:|(T- 1);
      Nginx|(T- );
      OpenVPN|(T- );
      Terminal|(T- );
      Zabbix|(T- );
    Cyber-security|(T- ):
      Autentification methods|(T- );
      Hash functions|(T- );
      Cookies|(T- );
      Digital signature|(T- );

  Web & Front-end Knowledge|(T- ):
    HTML;
    CSS;
    Browser and tools;
    JavaScript: 
    Json;

  English:
    Dictionary|(T- 2);
    Reading|0(T- 11);
    Speaking|0(T- 16);
    Writing|0(T- 18);

  Principles:
    CD/CI;
    DRY;
    PEP;
    RestAPI;
    SOLID;

  Others:
    API|(T- );
    Algorithms and Data-structure|(T- );
    Ansible|(T- );
    Caching|(T- );
    DOCKER|(T- );
    Git|(T- 2);
    Kubernetes|(T- );
    LXC/LXD|(T- );
    ORM|(T- );
    Prometheus|(T- );
    Proxmox|(T- );
    PDB|(T- );
    Regular expressions|(T- );
    SEO|(T- );
    Squid|(T- );
    Terraform|(T- );
    Testing|(T- );
    VMWare ESXi|(T- );
    KVM|(T- );
    Wireshark|(T- );

  Fold:
    Celery, Jinja, Laravel, Spring, DigitalOcean, (vds, vps) 

  LEVEL Mentions:
    (T- 8) == 0 | NL
    (T- 16) == 1 | PI
    (T- 32) == 2 | I
    (T- 64) == 3 | PJ
    (T- 128) == 4 | J
    (T- 256) == 5 | PM
    (T- 512) == 6 | M
    (T- 1024) == 7 | PS
    (T- 2048) == 8 | S
    (T- 4096) == 9 | PX
    (T- 8192) == |X|