K2 Brazilian Keymap

gistfile1.txt

// Add below to /usr/share/X11/xkb/symbols/br in replacement of Brazilian Nativo layout for US keyboards

//
// Keychron K2 Brazilian - Replaces Brazilian Nativo layout for US keyboards.
//
// Victor Oliveira	<[email protected]>
//
partial alphanumeric_keys
xkb_symbols "nativo-us" {

    include "br(nativo)"

    name[Group1]="Portuguese (Brazil, Nativo for US keyboards)";
key <TLDE> { [   grave,	dead_tilde,       notsign,         notsign ] };
    key <AE01> { [	      1,	  exclam, onesuperior,  		1]  };
    key <AE02> { [            2,             at,   twosuperior,         onehalf ] };
    key <AE03> { [            3,     numbersign, threesuperior,   threequarters ] };
    key <AE04> { [            4,         dollar,      sterling,      onequarter ] };
    key <AE05> { [            5,        percent,          cent,    threeeighths ] };
    key <AE06> { [            6, dead_circumflex,       notsign,       diaeresis ] };
    key <AE07> {	[	  7,	ampersand	]	};
    key <AE08> {	[	  8,	asterisk	]	};
    key <AE09> {	[	  9,	parenleft	]	};
    key <AE10> {	[	  0,	parenright	]	};
    key <AE11> {	[     minus,	underscore	]	};
    key <AE12> { [        equal,           plus,       section,     dead_ogonek ] };

    key <AD01> { [            q,              Q,         slash,           slash ] };
    key <AD02> { [            w,              W,      question,        question ] };
    key <AD03> { [            e,              E,        degree,          degree ] };
    key <AD04> { [            r,              R,    registered,      registered ] };
    key <AD05> {	[	  t,	T		]	};
    key <AD06> {	[	  y,	Y		]	};
    key <AD07> {	[	  u,	U		]	};
    key <AD08> {	[	  i,	I		]	};
    key <AD09> {	[	  o,	O, degree		]	};
    key <AD10> {	[	  p,	P		]	};
    key <AD11> { [  bracketleft,      braceleft,   ordfeminine,     dead_macron ] };
    key <AD12> { [ bracketright,     braceright,     masculine,       masculine ] };

    key <AC01> {	[	  a,	A 		]	};
    key <AC02> {	[	  s,	S		]	};
    key <AC03> {	[	  d,	D		]	};
    key <AC04> {	[	  f,	F		]	};
    key <AC05> {	[	  g,	G		]	};
    key <AC06> {	[	  h,	H		]	};
    key <AC07> {	[	  j,	J		]	};
    key <AC08> {	[	  k,	K		]	};
    key <AC09> {	[	  l,	L		]	};
    key <AC10> {	[ semicolon,	colon		]	};
    key <AC11> {	[ dead_acute,	quotedbl	]	};
    key <AC12> { [ backslash,     bar ] };
    key <BKSL> { [ backslash,     bar ] };
    
    key <AB01> {	[	  z,	Z 		]	};
    key <AB02> {	[	  x,	X		]	};
    key <AB03> {	[	  c,	C, ccedilla, CCedilla ]};
    key <AB04> {	[	  v,	V		]	};
    key <AB05> {	[	  b,	B		]	};
    key <AB06> {	[	  n,	N		]	};
    key <AB07> {	[	  m,	M		]	};
    key <AB08> {	[     comma,	less		]	};
    key <AB09> {	[    period,	greater		]	};
    key <AB10> {	[     slash,	question, questiondown	]	};
};

If this doesn't work:

It's because the cedilla module isn't loaded by default when the locale is set to en, so you have to change the configuration files for gtk to add them:

1. Edit configuration files:

sudo vim /usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/immodules.cache

sudo vim /usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/immodules.cache

On both, find the lines starting with "cedilla" "Cedilla" and add :en to the line. Something like this:

"cedilla" "Cedilla" "gtk30" "/usr/share/locale" "az:ca:co:fr:gv:oc:pt:sq:tr:wa:en"

2. Change the Compose file:

sudo sed -i /usr/share/X11/locale/en_US.UTF-8/Compose -e 's/ć/ç/g' -e 's/Ć/Ç/g'

3. Instruct the system to load the cedilla module:

Add those lines to /etc/environment:

GTK_IM_MODULE=cedilla
QT_IM_MODULE=cedilla

Reboot and you are done.

Source: https://superuser.com/a/1235405