\usepackage{newunicodechar}

\DeclareUnicodeCharacter{0101}{\=a}
\newunicodechar{⏎}{$\hookleftarrow$} % \hookleftarrow ≅ ↩︎
\newunicodechar{🎵}{musical note}
\newunicodechar{🐜}{ant}
\newunicodechar{⚒}{hammer and pick}
\newunicodechar{🔑}{key}
\newunicodechar{😭}{loudly crying face}
\newunicodechar{🦄}{unicorn}
\newunicodechar{👾}{alien}
\newunicodechar{🐳}{whale}
\newunicodechar{🌎}{world}
\newunicodechar{🍂}{fallen leaves}
\newunicodechar{🍁}{maple leaf}
\newunicodechar{🙈}{see-no-evil monkey}

\usepackage{newunicodechar}

\DeclareUnicodeCharacter{0101}{\=a}
\newunicodechar{⏎}{$\hookleftarrow$} % \hookleftarrow ≅ ↩︎
\newunicodechar{🎵}{musical note}
\newunicodechar{🐜}{ant}
\newunicodechar{⚒}{hammer and pick}
\newunicodechar{🔑}{key}
\newunicodechar{😭}{loudly crying face}
\newunicodechar{🦄}{unicorn}
\newunicodechar{👾}{alien}
\newunicodechar{🐳}{whale}
\newunicodechar{🌎}{world}
\newunicodechar{🍂}{fallen leaves}
\newunicodechar{🍁}{maple leaf}
\newunicodechar{🙈}{see-no-evil monkey}
\newunicodechar{🍏}{green apple}
\newunicodechar{🐧}{penguin}

Add replacement chars for emojis
Documentation: Add replacement chars for emojis
