.XCompose sequences for legacy Unicode ligatures to compress tweets

Emojis could be better to shrink character count, but they would make the text feel like from a primer. Append the following list to your ~/.XCompose file. Is there anyone still using Windows? Hopefully not, but WinCompose loads %USERPROFILE%\.XCompose as well. But it doesn't come with dead key sequences.

############################
# TWITTER (X) LENGTH HACKS #
############################

<Multi_key> <X> <X> : "𝕏" U01D54F
<Multi_key> <x> <x> : "𝕩" U01D569
<Multi_key> <period> <comma> : "ꓻ"

# disambiguated from existing sequences
<Multi_key> <leftparen> <space> <leftparen> : "⸨"
<Multi_key> <rightparen> <space> <rightparen> : "⸩"
<Multi_key> <d> <C> : "℃"
<Multi_key> <d> <F> : "℉"
<Multi_key> <a> <space> <a> : "ꜳ"
<Multi_key> <A> <space> <A> : "Ꜳ"
<Multi_key> <A> <space> <U> : "㍳"
<Multi_key> <c> <space> <d> : "㏅"
<Multi_key> <C> <space> <o> : "㏇"
<Multi_key> <d> <space> <zcaron> : "dž"
<Multi_key> <D> <space> <zcaron> : "Dž"
<Multi_key> <D> <space> <Zcaron> : "DŽ"
<Multi_key> <space> <d> <z> : "ʣ"
<Multi_key> <d> <space> <z> : "dz"
<Multi_key> <D> <space> <z> : "Dz"
<Multi_key> <D> <space> <Z> : "DZ"
<Multi_key> <l> <space> <t> : "₶"
<Multi_key> <m> <space> <g> : "㎎"
<Multi_key> <o> <space> <V> : "㍵"
<Multi_key> <O> <space> <y> : "Ѹ"
<Multi_key> <o> <space> <y> : "ѹ"
<Multi_key> <u> <space> <A> : "㎂"
<Multi_key> <u> <space> <g> : "㎍"
<Multi_key> <u> <space> <o> : "ꭣ"
<Multi_key> <X> <space> <X> : "〷"

# ligatures (sorted)
<Multi_key> <a> <G> : "ꬱ"
<Multi_key> <a> <m> : "㏂"
<Multi_key> <a> <o> : "ꜵ"
<Multi_key> <A> <O> : "Ꜵ"
<Multi_key> <a> <u> : "ꜷ"
<Multi_key> <A> <U> : "Ꜷ"
<Multi_key> <a> <v> : "ꜹ"
<Multi_key> <A> <V> : "Ꜹ"
<Multi_key> <a> <y> : "ꜽ"
<Multi_key> <A> <Y> : "Ꜽ"
<Multi_key> <b> <a> <r> : "㍴"
<Multi_key> <b> <i> : "ы"
<Multi_key> <b> <I> : "Ы"
<Multi_key> <B> <q> : "㏃"
<Multi_key> <c> <a> <l> : "㎈"
<Multi_key> <c> <c> : "㏄"
<Multi_key> <C> <L> : "℄"
<Multi_key> <c> <m> : "㎝"
<Multi_key> <c> <o> : "ꭃ"
<Multi_key> <c> <o> <slash> : "ꭄ"
<Multi_key> <d> <a> : "㍲"
<Multi_key> <d> <B> : "㏈"
<Multi_key> <d> <l> : "㎗"
<Multi_key> <d> <m> : "㍷"
<Multi_key> <D> <p> : "₯"
<Multi_key> <e> <e> <e> : "⅏"
<Multi_key> <e> <h> <e> : "ᴂ"
<Multi_key> <e> <h> <e> <h> : "ꭂ"
<Multi_key> <e> <h> <o> : "ᴔ"
<Multi_key> <e> <h> <o> <slash> : "ꭁ"
<Multi_key> <e> <r> <g> : "㋍"
<Multi_key> <e> <V> : "㋎"
<Multi_key> <F> <A> <X> : "℻"
<Multi_key> <f> <f> <i> : "ffi"
<Multi_key> <f> <f> <l> : "ffl"
<Multi_key> <f> <m> : "㎙"
<Multi_key> <f> <n> <g> : "ʩ"
<Multi_key> <g> <a> <l> : "㏿"
<Multi_key> <G> <B> : "㎇"
<Multi_key> <G> <H> <z> : "㎓"
<Multi_key> <G> <P> <a> : "㎬"
<Multi_key> <G> <y> : "㏉"
<Multi_key> <h> <a> : "㏊"
<Multi_key> <H> <g> : "㋌"
<Multi_key> <h> <P> <a> : "㍱"
<Multi_key> <H> <P> : "㏋"
<Multi_key> <H> <S> : "𐆘"
<Multi_key> <H> <z> : "㎐"
<Multi_key> <i> <n> : "㏌"
<Multi_key> <I> <U> : "㍺"
<Multi_key> <k> <A> : "㎄"
<Multi_key> <k> <B> : "㎅"
<Multi_key> <k> <c> <a> <l> : "㎉"
<Multi_key> <k> <g> : "㎏"
<Multi_key> <k> <H> <z> : "㎑"
<Multi_key> <K> <K> : "㏍"
<Multi_key> <k> <l> : "㎘"
<Multi_key> <k> <m> : "㎞"
<Multi_key> <K> <M> : "㏎"
<Multi_key> <k> <O> : "㏀"
<Multi_key> <k> <P> <a> : "㎪"
<Multi_key> <k> <t> : "㏏"
<Multi_key> <k> <V> : "㎸"
<Multi_key> <k> <w> : "㎾"
<Multi_key> <l> <b> : "℔"
<Multi_key> <l> <j> : "lj"
<Multi_key> <L> <j> : "Lj"
<Multi_key> <L> <J> : "LJ"
<Multi_key> <l> <m> : "㏐"
<Multi_key> <l> <n> : "㏑"
<Multi_key> <l> <o> <g> : "㏒"
<Multi_key> <l> <s> : "ʪ"
<Multi_key> <L> <T> <D> : "㋏"
<Multi_key> <l> <x> : "㏓"
<Multi_key> <l> <z> : "ʫ"
<Multi_key> <m> <A> : "㎃"
<Multi_key> <m> <b> : "㏔"
<Multi_key> <M> <B> : "㎆"
<Multi_key> <M> <H> <z> : "㎒"
<Multi_key> <m> <i> <l> : "㏕"
<Multi_key> <m> <l> : "㎖"
<Multi_key> <m> <m> : "㎜"
<Multi_key> <m> <o> <l> : "㏖"
<Multi_key> <m> <O> : "㏁"
<Multi_key> <M> <P> <a> : "㎫"
<Multi_key> <m> <S> : "₷"
<Multi_key> <m> <s> : "㎳"
<Multi_key> <m> <V> : "㎷"
<Multi_key> <M> <V> : "㎹"
<Multi_key> <m> <W> : "㎽"
<Multi_key> <M> <W> : "㎿"
<Multi_key> <n> <A> : "㎁"
<Multi_key> <n> <F> : "㎋"
<Multi_key> <n> <j> : "nj"
<Multi_key> <N> <j> : "Nj"
<Multi_key> <N> <J> : "NJ"
<Multi_key> <n> <m> : "㎚"
<Multi_key> <n> <s> : "㎱"
<Multi_key> <n> <V> : "㎵"
<Multi_key> <n> <W> : "㎻"
<Multi_key> <o> <dot> <o> <dot> : "ꙭ"
<Multi_key> <O> <dot> <O> <dot> : "Ꙭ"
<Multi_key> <o> <g> : "ꭀ"
<Multi_key> <o> <o> : "ꝏ"
<Multi_key> <O> <O> : "Ꝏ"
<Multi_key> <p> <A> : "㎀"
<Multi_key> <P> <a> : "㎩"
<Multi_key> <p> <c> : "㍶"
<Multi_key> <p> <F> : "㎊"
<Multi_key> <p> <H> : "㏗"
<Multi_key> <P> <L> : "⅊"
<Multi_key> <p> <less> : "ԗ"
<Multi_key> <P> <less> : "Ԗ"
<Multi_key> <p> <m> : "㏘"
<Multi_key> <P> <P> <M> : "㏙"
<Multi_key> <P> <R> : "㏚"
<Multi_key> <p> <s> : "㎰"
<Multi_key> <P> <T> <E> : "㉐"
<Multi_key> <p> <V> : "㎴"
<Multi_key> <p> <W> : "㎺"
<Multi_key> <P> <x> : "℞"
<Multi_key> <Q> <E> : "🜀"
<Multi_key> <r> <a> <d> : "㎭"
<Multi_key> <s> <r> : "㏛"
<Multi_key> <s> <s> <s> : "🝜"
<Multi_key> <s> <t> : "st"
<Multi_key> <S> <t> : "ſt"
<Multi_key> <S> <v> : "㏜"
<Multi_key> <T> <H> <z> : "㎔"
<Multi_key> <t> <l> : "ꝷ"
<Multi_key> <t> <s> : "ʦ"
<Multi_key> <t> <S> : "ʧ"
<Multi_key> <u> <e> : "ᵫ"
<Multi_key> <u> <F> : "㎌"
<Multi_key> <u> <l> : "㎕"
<Multi_key> <u> <m> : "㎛"
<Multi_key> <u> <s> : "㎲"
<Multi_key> <u> <V> : "㎶"
<Multi_key> <u> <W> : "㎼"
<Multi_key> <v> <y> : "ꝡ"
<Multi_key> <V> <Y> : "Ꝡ"
<Multi_key> <W> <b> : "㏝"
<Multi_key> <w> <w> : "ʬ"

# 3 and keypad 3 for ʒ
<Multi_key> <d> <3> : "ʤ"
<Multi_key> <d> <KP_3> : "ʤ"
<Multi_key> <l> <3> : "ɮ"
<Multi_key> <l> <KP_3> : "ɮ"
<Multi_key> <t> <3> : "ꜩ"
<Multi_key> <t> <KP_3> : "ꜩ"
<Multi_key> <T> <3> : "Ꜩ"
<Multi_key> <T> <KP_3> : "Ꜩ"
<Multi_key> <v> <3> : "ꟃ"
<Multi_key> <v> <KP_3> : "ꟃ"
<Multi_key> <V> <3> : "Ꟃ"
<Multi_key> <V> <KP_3> : "Ꟃ"

# exponent (number row)
<Multi_key> <c> <m> <2> : "㎠"
<Multi_key> <c> <m> <3> : "㎤"
<Multi_key> <d> <m> <2> : "㍸"
<Multi_key> <d> <m> <3> : "㍹"
<Multi_key> <k> <m> <2> : "㎢"
<Multi_key> <k> <m> <3> : "㎦"
<Multi_key> <m> <2> : "㎡"
<Multi_key> <m> <3> : "㎥"
<Multi_key> <m> <m> <2> : "㎟"
<Multi_key> <m> <m> <3> : "㎣"

# exponent (keypad)
<Multi_key> <c> <m> <KP_2> : "㎠"
<Multi_key> <c> <m> <KP_3> : "㎤"
<Multi_key> <d> <m> <KP_2> : "㍸"
<Multi_key> <d> <m> <KP_3> : "㍹"
<Multi_key> <k> <m> <KP_2> : "㎢"
<Multi_key> <k> <m> <KP_3> : "㎦"
<Multi_key> <m> <KP_2> : "㎡"
<Multi_key> <m> <KP_3> : "㎥"
<Multi_key> <m> <m> <KP_2> : "㎟"
<Multi_key> <m> <m> <KP_3> : "㎣"

# slash
<Multi_key> <a> <slash> <c> : "℀"
<Multi_key> <A> <slash> <m> : "㏟"
<Multi_key> <a> <slash> <s> : "℁"
<Multi_key> <A> <slash> <S> : "⅍"
<Multi_key> <C> <slash> <k> <g> : "㏆"
<Multi_key> <c> <slash> <o> : "℅"
<Multi_key> <c> <slash> <u> : "℆"
<Multi_key> <m> <slash> <s> : "㎧"
<Multi_key> <r> <a> <d> <slash> <s> : "㎮"
<Multi_key> <V> <slash> <m> : "㏞"

# slash and exponent (also keypad)
<Multi_key> <m> <slash> <s> <2> : "㎨"
<Multi_key> <m> <slash> <s> <KP_2> : "㎨"
<Multi_key> <r> <a> <d> <slash> <s> <2> : "㎯"
<Multi_key> <r> <a> <d> <slash> <s> <KP_2> : "㎯"

# numbers with punctuation
<Multi_key> <1> <leftparen> : "⑴"
<Multi_key> <2> <leftparen> : "⑵"
<Multi_key> <3> <leftparen> : "⑶"
<Multi_key> <4> <leftparen> : "⑷"
<Multi_key> <5> <leftparen> : "⑸"
<Multi_key> <6> <leftparen> : "⑹"
<Multi_key> <7> <leftparen> : "⑺"
<Multi_key> <8> <leftparen> : "⑻"
<Multi_key> <9> <leftparen> : "⑼"
<Multi_key> <1> <0> <leftparen> : "⑽"
<Multi_key> <1> <1> <leftparen> : "⑾"
<Multi_key> <1> <2> <leftparen> : "⑿"
<Multi_key> <1> <3> <leftparen> : "⒀"
<Multi_key> <1> <4> <leftparen> : "⒁"
<Multi_key> <1> <5> <leftparen> : "⒂"
<Multi_key> <1> <6> <leftparen> : "⒃"
<Multi_key> <1> <7> <leftparen> : "⒄"
<Multi_key> <1> <8> <leftparen> : "⒅"
<Multi_key> <1> <9> <leftparen> : "⒆"
<Multi_key> <2> <0> <leftparen> : "⒇"
<Multi_key> <0> <period> : "🄀"
<Multi_key> <1> <period> : "⒈"
<Multi_key> <2> <period> : "⒉"
<Multi_key> <3> <period> : "⒊"
<Multi_key> <4> <period> : "⒋"
<Multi_key> <5> <period> : "⒌"
<Multi_key> <6> <period> : "⒍"
<Multi_key> <7> <period> : "⒎"
<Multi_key> <8> <period> : "⒏"
<Multi_key> <9> <period> : "⒐"
<Multi_key> <1> <0> <period> : "⒑"
<Multi_key> <1> <1> <period> : "⒒"
<Multi_key> <1> <2> <period> : "⒓"
<Multi_key> <1> <3> <period> : "⒔"
<Multi_key> <1> <4> <period> : "⒕"
<Multi_key> <1> <5> <period> : "⒖"
<Multi_key> <1> <6> <period> : "⒗"
<Multi_key> <1> <7> <period> : "⒘"
<Multi_key> <1> <8> <period> : "⒙"
<Multi_key> <1> <9> <period> : "⒚"
<Multi_key> <2> <0> <period> : "⒛"
<Multi_key> <0> <comma> : "🄁"
<Multi_key> <1> <comma> : "🄂"
<Multi_key> <2> <comma> : "🄃"
<Multi_key> <3> <comma> : "🄄"
<Multi_key> <4> <comma> : "🄅"
<Multi_key> <5> <comma> : "🄆"
<Multi_key> <6> <comma> : "🄇"
<Multi_key> <7> <comma> : "🄈"
<Multi_key> <8> <comma> : "🄉"
<Multi_key> <9> <comma> : "🄊"

# letters in parentheses
<Multi_key> <a> <leftparen> : "⒜"
<Multi_key> <b> <leftparen> : "⒝"
<Multi_key> <c> <leftparen> : "⒞"
<Multi_key> <d> <leftparen> : "⒟"
<Multi_key> <e> <leftparen> : "⒠"
<Multi_key> <f> <leftparen> : "⒡"
<Multi_key> <g> <leftparen> : "⒢"
<Multi_key> <h> <leftparen> : "⒣"
<Multi_key> <i> <leftparen> : "⒤"
<Multi_key> <j> <leftparen> : "⒥"
<Multi_key> <k> <leftparen> : "⒦"
<Multi_key> <l> <leftparen> : "⒧"
<Multi_key> <m> <leftparen> : "⒨"
<Multi_key> <n> <leftparen> : "⒩"
<Multi_key> <o> <leftparen> : "⒪"
<Multi_key> <p> <leftparen> : "⒫"
<Multi_key> <q> <leftparen> : "⒬"
<Multi_key> <r> <leftparen> : "⒭"
<Multi_key> <s> <leftparen> : "⒮"
<Multi_key> <t> <leftparen> : "⒯"
<Multi_key> <u> <leftparen> : "⒰"
<Multi_key> <v> <leftparen> : "⒱"
<Multi_key> <w> <leftparen> : "⒲"
<Multi_key> <x> <leftparen> : "⒳"
<Multi_key> <y> <leftparen> : "⒴"
<Multi_key> <z> <leftparen> : "⒵"
<Multi_key> <A> <leftparen> : "🄐"
<Multi_key> <B> <leftparen> : "🄑"
<Multi_key> <C> <leftparen> : "🄒"
<Multi_key> <D> <leftparen> : "🄓"
<Multi_key> <E> <leftparen> : "🄔"
<Multi_key> <F> <leftparen> : "🄕"
<Multi_key> <G> <leftparen> : "🄖"
<Multi_key> <H> <leftparen> : "🄗"
<Multi_key> <I> <leftparen> : "🄘"
<Multi_key> <J> <leftparen> : "🄙"
<Multi_key> <K> <leftparen> : "🄚"
<Multi_key> <L> <leftparen> : "🄛"
<Multi_key> <M> <leftparen> : "🄜"
<Multi_key> <N> <leftparen> : "🄝"
<Multi_key> <O> <leftparen> : "🄞"
<Multi_key> <P> <leftparen> : "🄟"
<Multi_key> <Q> <leftparen> : "🄠"
<Multi_key> <R> <leftparen> : "🄡"
<Multi_key> <S> <leftparen> : "🄢"
<Multi_key> <T> <leftparen> : "🄣"
<Multi_key> <U> <leftparen> : "🄤"
<Multi_key> <V> <leftparen> : "🄥"
<Multi_key> <W> <leftparen> : "🄦"
<Multi_key> <X> <leftparen> : "🄧"
<Multi_key> <Y> <leftparen> : "🄨"
<Multi_key> <Z> <leftparen> : "🄩"