Remap ALT->CTRL, CTRL->CTRL, WIN->ALT. The most common mac XKBOPTIONS

altwin

///////////////////////////////////////////
//   /usr/share/X11/xkb/symbols/altwin   //
///////////////////////////////////////////

// Ctrl is mapped to the Alt, Alt to the Super, and Win to the Ctrl keys.
// partial modifier_keys
// xkb_symbols "ctrl_alt_win" {
//     key <LALT> { [ Control_L, Control_L  ] };
//     key <RALT> { type[Group1] = "TWO_LEVEL",
//                  symbols[Group1] = [ Control_R, Control_R ] };
//     key <LWIN> { [ Alt_L, Meta_L ] };
//     key <RWIN> { [ Alt_R, Meta_R ] };
//     key <LCTL> { [ Super_L ] };
//     key <RCTL> { [ Super_R ] };
//     modifier_map Control { <RALT>, <LALT> };
//     modifier_map Mod1 { <LWIN>, <RWIN> };
//     modifier_map Mod4 { <LCTL>, <RCTL> };
// };
// Ctrl is mapped to the Alt, Alt to the Super, and Win to the Ctrl keys.
partial modifier_keys
xkb_symbols "ctrl_alt_win" {
    key <LALT> { [ Control_L, Control_L  ] };
    key <RALT> { type[Group1] = "TWO_LEVEL",
                 symbols[Group1] = [ Control_R, Control_R ] };
    key <LWIN> { [ Alt_L, Meta_L ] };
    key <RWIN> { [ Alt_R, Meta_R ] };
    // key <LCTL> { [ Super_L ] };
    // key <RCTL> { [ Super_R ] };
    modifier_map Control { <RALT>, <LALT> };
    modifier_map Mod1 { <LWIN>, <RWIN> };
    // modifier_map Mod4 { <LCTL>, <RCTL> };
};

Change in /etc/defaults/keyboard

XKBOPTIONS="altwin:ctrl_alt_win"