[
{
      "title": "linux",
      "subtitle": "Basics",
      "level": "Intermediate",
      "desc": "description",
      "lang": "el",
      "license": "CC BY-NC-ND 3.0",
      "dir": "hybrid-linux"
},
{
      "title": "linux",
      "subtitle": "Basics",
      "level": "Intermediate",
      "desc": "description",
      "lang": "en",
      "license": "CC BY-NC-ND 3.0",
      "dir": "hybrid-linux-en"
},
{
      "title": "mpi",
      "subtitle": "Basics",
      "level": "Elementary",
      "desc": "description",
      "license": "CC BY-NC-ND 3.0",
      "lang": "el",
      "dir": "hybrid-mpi"
}
]