qmk_firmware/keyboards/emi20/info.json

{
    "keyboard_name": "Emi20", 
    "url": "", 
    "maintainer": "Aquacylinder", 
    "width": 4,
    "height": 5,
    "layouts": {
        "LAYOUT_ortho_5x4": {
            "layout": [
                {"label":"K11 (F7,C7)", "x":0, "y":0},
                {"label":"K21 (F1,C7)", "x":1, "y":0},
                {"label":"K31 (B2,C7)", "x":2, "y":0},
                {"label":"K41 (B2,F0)", "x":3, "y":0},

                {"label":"K12 (F1,F0)", "x":0, "y":1},
                {"label":"K22 (B2,B6)", "x":1, "y":1},
                {"label":"K32 (F1,B6)", "x":2, "y":1},
                {"label":"K42 (B2,B3)", "x":3, "y":1},

                {"label":"K13 (F1,B3)", "x":0, "y":2},
                {"label":"K23 (B2,C6)", "x":1, "y":2},
                {"label":"K33 (F1,C6)", "x":2, "y":2},
                {"label":"K43 (B2,E6)", "x":3, "y":2},

                {"label":"K14 (F1,E6)", "x":0, "y":3},
                {"label":"K24 (B2,D5)", "x":1, "y":3},
                {"label":"K34 (F1,D5)", "x":2, "y":3},
                {"label":"K44 (D0,B1)", "x":3, "y":3},

                {"label":"K15 (D0,F4)", "x":0, "y":4},
                {"label":"K25 (F7,D1)", "x":1, "y":4},
                {"label":"K35 (F7,B3)", "x":2, "y":4},
                {"label":"K45 (B5,C7)", "x":3, "y":4}
            ]
        }
    }
}