Swedish Mac keyboard Layout for a PC

usr-share-X11-xkb-rules-evdev.xml

// Find <layout> for "Swedish" and add the following into its <VariantList>:
  
        <variant>
          <configItem>
            <name>mac_joakimbeng</name>
            <description>Swedish (Joakimbeng Macintosh)</description>
          </configItem>
        </variant>

usr-share-X11-xkb-symbols-se

// .... put the following in the file:

// Copied from macintosh_vndr/se
partial alphanumeric_keys
xkb_symbols "mac_joakimbeng" {

    // Describes the differences between a very simple en_US
    // keyboard and a very simple Swedish(Sweden) keyboard.

    include "latin"
    name[Group1]= "Swedish (Joakimbeng Macintosh)";

    key <TLDE> {	[         section,          degree	]	};
    key <AE01> {	[               1,          exclam,        copyright,      exclamdown	]	};
    key <AE02> {	[               2,        quotedbl, 	          at,	    oneeighth	]	};
    key <AE03> {	[               3,      numbersign,         sterling,             yen	]	};
    key <AE04> {	[               4,        currency, 	      dollar,	         cent	]	};
    key <AE06> {	[               6,       ampersand     	]	};
    key <AE07> {	[               7,           slash, 	         bar,       backslash	]	};
    key <AE08> {	[               8,       parenleft,      bracketleft,       braceleft	]	};
    key <AE09> {	[               9,      parenright,     bracketright,      braceright	]	};
    key <AE10> {	[               0,           equal     	]	};
    key <AE11> {	[            plus,        question      ]	};
    key <AE12> {	[           acute,           grave,       dead_acute,      dead_grave	]	};
    key <AD11> {	[	        aring,           Aring     	]	};
    key <AD12> {	[       diaeresis,     asciicircum, 	 asciitilde			]	};
    key <AC10> {	[      odiaeresis,      Odiaeresis, 	     oslash,	    Ooblique	]	};
    key <AC11> {	[      adiaeresis,      Adiaeresis,              ae,		      AE	]	};
    key <BKSL> {	[      apostrophe,        asterisk,       trademark			]	};
    key <AB08> {	[           comma,       semicolon     	]	};
    key <AB09> {	[          period,           colon     	]	};
    key <AB10> {	[           minus,      underscore     	]	};

    include "kpdl(comma)"
    // Make Left Win AltGr
    replace key <LWIN> {
      type[Group1]="ONE_LEVEL",
      symbols[Group1] = [ ISO_Level3_Shift ]
    };
    // Make Left Alt Left Ctrl
    replace key <LALT> { [ Control_L, Control_L ] };
    replace key <LCTL> { [ Super_L ] };
    replace key <CAPS> { [ Alt_L ] };
    include "level3(modifier_mapping)"
};

(replace dashes with "/" in the filenames and you get the full paths for them)

After modifying those files run:

sudo dpkg-reconfigure xkb-data