neko/runtime/fontconfig/75-emoji.conf

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>


    <!-- Add generic family -->

    <match target="pattern">
        <test qual="any" name="family"><string>emoji</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>


    <!-- Set as final fallback for default families -->

    <match target="pattern">
        <test name="family"><string>sans</string></test>
        <edit name="family" mode="append"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test name="family"><string>serif</string></test>
        <edit name="family" mode="append"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test name="family"><string>sans-serif</string></test>
        <edit name="family" mode="append"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test name="family"><string>monospace</string></test>
        <edit name="family" mode="append"><string>Noto Color Emoji</string></edit>
    </match>


    <!-- Block Symbola from being a fallback -->

    <selectfont>
        <rejectfont>
            <pattern>
                <patelt name="family">
                    <string>Symbola</string>
                </patelt>
            </pattern>
        </rejectfont>
    </selectfont>


    <!-- Use this font when other popular ones are specifically requested -->

    <match target="pattern">
        <test qual="any" name="family"><string>Android Emoji</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Apple Color Emoji</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>EmojiSymbols</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Emoji Two</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>EmojiTwo</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Noto Color Emoji</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Segoe UI Emoji</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Segoe UI Symbol</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Symbola</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Twemoji</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Twemoji Mozilla</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>TwemojiMozilla</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>

    <match target="pattern">
        <test qual="any" name="family"><string>Twitter Color Emoji</string></test>
        <edit name="family" mode="assign" binding="same"><string>Noto Color Emoji</string></edit>
    </match>


</fontconfig>