etc/fonts/local.conf

<?xml version="1.0"?>

<!-- Based on Arch Wiki:
     https://wiki.archlinux.org/index.php/Font_configuration/Examples#Chinese
-->

<fontconfig>
	<!-- Pixel alignment -->
	<match target="font">
		<edit name="rgba" mode="assign">
			<const>rgb</const>
		</edit>
	</match>

	<!-- Never use embedded bitmap glyph -->
	<match target="font">
		<edit name="embeddedbitmap" mode="assign">
			<bool>false</bool>
		</edit>
	</match>

	<!-- serif -->
	<match>
		<test qual="any" name="family">
			<string>serif</string>
		</test>
		<edit name="family" mode="prepend" binding="strong">
			<string>Noto Serif</string>
		</edit>
	</match>
	<match>
		<test name="lang" compare="contains">
			<string>zh</string>
		</test>
		<test name="family">
			<string>serif</string>
		</test>
		<edit name="family" mode="prepend">
			<string>Noto Serif CJK SC</string>
		</edit>
	</match>

	<!-- serif -->
	<match>
		<test qual="any" name="family">
			<string>sans-serif</string>
		</test>
		<edit name="family" mode="prepend" binding="strong">
			<string>Noto Sans</string>
		</edit>
	</match>
	<match>
		<test name="lang" compare="contains">
			<string>zh</string>
		</test>
		<test name="family">
			<string>sans-serif</string>
		</test>
		<edit name="family" mode="prepend">
			<string>Noto Sans CJK SC</string>
		</edit>
	</match>

	<!-- mono -->
	<match>
		<test name="family">
			<string>monospace</string>
		</test>
		<edit name="family" mode="prepend">
			<string>Noto Sans Symbols</string>
		</edit>
		<edit name="family" mode="prepend">
			<string>Noto Sans Symbols2</string>
		</edit>
		<edit name="family" mode="prepend">
			<string>Source Code Pro</string>
		</edit>
	</match>
	<match>
		<test qual="any" name="family">
			<string>monospace</string>
		</test>
		<edit name="family" mode="prepend" binding="strong">
			<string>Noto Sans Mono</string>
		</edit>
	</match>
	<match>
		<test name="lang" compare="contains">
			<string>zh</string>
		</test>
		<test name="family">
			<string>monospace</string>
		</test>
		<edit name="family" mode="prepend">
			<string>Noto Sans Mono CJK SC</string>
		</edit>
	</match>
</fontconfig>