diff --git a/fetchfont.nix b/fetchfont.nix
new file mode 100644
index 0000000..c719276
--- /dev/null
+++ b/fetchfont.nix
@@ -0,0 +1,90 @@
+# vim: set noet sw=2 ts=2 sts=2:
+{lib, nixpkgs, sfnt2woff-zopfli, ...}:
+{src ? null , srcs ? null, name ? "", pname ? "", version ? ""}:
+	let
+		name_ =
+			if "" != name
+			then name
+			else "${pname}-v${version}";
+	in stdenv.mkDerivation ({
+		name = name_;
+		nativeBuildInputs = with nixpkgs; [ sfnt2woff-zopfli unzip coreutils fontconfig woff2 ];
+		unpackPhase = ''
+			source_dir="$TMPDIR/src"
+			mkdir "$source_dir"
+			cd "$source_dir"
+			for s in $src $srcs
+			do
+				case "$s" in
+				*.zip|*.tar|*.tar.gz|*.tgz|*.tar.xz|*.txz|*.tar.bz2|*.tbz2)
+					unpackFile "$s"
+					;;
+				*)
+					cp -pr --reflink=auto -- "$s" "$(stripHash "$s")"
+					;;
+				esac
+			done
+		'';
+		buildPhase = ''
+			set -e
+			build_dir="$TMPDIR/build"
+			mkdir "$build_dir"
+			find "$source_dir" \( -name \*.otf -or -name \*.ttf -or -name \*.woff -or -name \*.woff2 \) -exec cp \{\} "$build_dir" \;
+			cd "$build_dir"
+
+			for s in *.otf *.ttf
+			do
+				bn="''${s%.otf}"
+				bn="''${bn%.ttf}"
+				if ! [ -e "$bn.woff" ]
+				then
+					echo "sfnt2woff-zopfli $s => $bn.woff"
+					sfnt2woff-zopfli "$s"
+				fi
+				if ! [ -e "$bn.woff2" ]
+				then
+					echo "woff2_compress $s => $bn.woff2"
+					woff2_compress "$s"
+				fi
+			done
+
+			for s in *.otf *.ttf *.woff
+			do
+				fc="`dirname "$s"`/`basename "$s"`.fc"
+				echo "fc-scan $s"
+				LANG=C LC_NUMERIC=C fc-scan --format 'family=%{family}
+			fullname=%{fullname}
+			postscriptname=%{postscriptname}
+			variable=%{variable}
+			slant=%{slant}
+			style=%{style}
+			weight=%{weight}
+			width=%{width}
+
+			' "$s" > "$fc"
+			done
+			for s in *.woff2
+			do
+				o="`dirname "$s"`/`basename "$s" .woff2`.woff.fc"
+				fc="`dirname "$s"`/`basename "$s"`.fc"
+				cp "$o" "$fc"
+			done
+		'';
+		installPhase = ''
+			cd "$TMPDIR"
+			mkdir -p $out/share/{doc/${name_},fonts/{opentype,truetype,WOFF,WOFF2}{,/.fc}}
+			find "$build_dir"  -name \*.otf   -exec cp \{\} $out/share/fonts/opentype \;
+			find "$build_dir"  -name \*.ttf   -exec cp \{\} $out/share/fonts/truetype \;
+			find "$build_dir"  -name \*.woff  -exec cp \{\} $out/share/fonts/WOFF \;
+			find "$build_dir"  -name \*.woff2 -exec cp \{\} $out/share/fonts/WOFF2 \;
+			find "$build_dir"  -name \*.otf.fc   -exec cp \{\} $out/share/fonts/opentype/.fc \;
+			find "$build_dir"  -name \*.ttf.fc   -exec cp \{\} $out/share/fonts/truetype/.fc \;
+			find "$build_dir"  -name \*.woff.fc  -exec cp \{\} $out/share/fonts/WOFF/.fc \;
+			find "$build_dir"  -name \*.woff2.fc -exec cp \{\} $out/share/fonts/WOFF2/.fc \;
+			find "$source_dir" -name \*.txt   -exec cp \{\} $out/share/doc/${name_} \;
+			find "$source_dir" -name \*.md    -exec cp \{\} $out/share/doc/${name_} \;
+			find "$source_dir" -name \*.adoc  -exec cp \{\} $out/share/doc/${name_} \;
+			find "$source_dir" -name \*.html  -exec cp \{\} $out/share/doc/${name_} \;
+			find "$source_dir" -name \*.css   -exec cp \{\} $out/share/doc/${name_} \;
+		'';
+	} // (if null != src then { src = src; } else { srcs = srcs; }));
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..da1527d
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,18 @@
+# vim: set noet sw=2 ts=2 sts=2:
+{
+	description = "fonts";
+	inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-23.05-small;
+	outputs = { self, nixpkgs }: 
+		let
+			sfnt2woff-zopfli = callPackage ./sfnt2woff-zopfli.nix {};
+			fetchfont = callPackage ./fetchfont.nix {sfnt2woff-zopfli = sfnt2woff-zopfli; };
+			fonts = callPackage ./fonts.nix {fetchfont = fetchfont; };
+		in
+		fetchfont = fetchfont;
+
+		defaultPackage.x86_64-linux =
+			with import nixpkgs { system = "x86_64-linux"; };
+			fonts // { sfnt2woff-zopfli = sfnt2woff-zopfli; };
+	};
+}
+
diff --git a/fonts.nix b/fonts.nix
new file mode 100644
index 0000000..493202a
--- /dev/null
+++ b/fonts.nix
@@ -0,0 +1,51 @@
+# vim: set noet sw=2 ts=2 sts=2:
+{lib, nixpkgs, fetchfont, ...}:
+with nixpkgs; {
+	libre_barcode =
+		fetchfont rec {
+			pname = "LibreBarcode";
+			version = "1.008";
+			src = fetchurl { name = "${pname}-${version}.zip";    hash = "sha256-47ntjMcZR4j5ybGU2UAA5t4FTPvyAvTiDSKYGEdRDQU="; url = "https://github.com/graphicore/librebarcode/releases/download/v${version}/${pname}_v${version}.zip"; };
+		};
+	fira_code =
+		fetchfont rec {
+			pname   = "FiraCode";
+			version = "6.2";
+			src = fetchurl { name = "${pname}-${version}.zip";    hash = "sha256-CUmRW6jrJNif2T0Qp/9iP0KDDXxf/D7L+WDk7K0+Pnk="; url = "https://github.com/tonsky/FiraCode/releases/download/${version}/Fira_Code_v${version}.zip"; };
+		};
+	fira_mono =
+		fetchfont rec {
+			pname   = "FiraMono";
+			version = "4.202";
+			src = fetchurl { name = "${pname}-${version}.tar.gz"; hash = "sha256-2GJpZXOH8UTXe6EgERJPMPQj9wZy4VdtwW+Ri7Ft3+Q="; url = "https://github.com/mozilla/Fira/archive/refs/tags/${version}.tar.gz"; };
+		};
+	alegreya =
+		fetchfont rec {
+			pname   = "Alegreya";
+			version = "2.008";
+			src = fetchurl { name = "${pname}-${version}.tar.gz"; hash = "sha256-RNrL48S2DCA7HWDwpV6/bBOYI/g/0jT5sHjs58sVZ24="; url = "https://github.com/huertatipografica/${pname}/archive/refs/tags/v${version}.tar.gz"; };
+		};
+	alegreya_sans =
+		fetchfont rec {
+			pname = "Alegreya-Sans";
+			version = "2.008";
+			src = fetchurl { name = "${pname}-${version}.tar.gz"; hash = "sha256-6lRVctSeGOZ11rcqZ1TaNE4kucrMPSt2wesr+a5zpAI="; url = "https://github.com/huertatipografica/${pname}/archive/refs/tags/v${version}.tar.gz"; };
+		};
+	inconsolata =
+		fetchfont rec {
+			pname = "Inconsolata";
+			version = "3.000";
+			src = fetchurl { name = "${pname}-${version}.tar.gz"; hash = "sha256-8tjYumyqeFqWbvF5loIqsUupHsQjQxop4bbEsUvEzaU="; url = "https://github.com/googlefonts/${pname}/archive/refs/tags/v${version}.tar.gz"; };
+		};
+	rubik_dirt =
+		fetchfont rec {
+			pname = "RubikDirt";
+			version = "2";
+			srcs = let baseurl = "https://github.com/NaN-xyz/Rubik-Filtered/raw/7f47b7f79f903e1d6af9883da43a84928e02b816/dirt/fonts";
+				in [
+				(fetchurl { name = "${pname}-Regular.ttf";   hash = "sha256-nePZKOQ0pH7IXXWQEsig6/6rCGAHbupOOYmkfF4hMSM="; url = "${baseurl}/ttf/${pname}-Regular.ttf"; })
+				(fetchurl { name = "${pname}-Regular.woff2"; hash = "sha256-xh1jUaN5FRaU/omXT7U9T9Qhu+Cl/YddAJnSpgCOqYk="; url = "${baseurl}/webfonts/${pname}-Regular.woff2"; })
+			];
+		};
+	};
+};
diff --git a/sfnt2woff-zopfli.nix b/sfnt2woff-zopfli.nix
new file mode 100644
index 0000000..ef335f8
--- /dev/null
+++ b/sfnt2woff-zopfli.nix
@@ -0,0 +1,20 @@
+# vim: set noet sw=2 ts=2 sts=2:
+{lib, nixpkgs, ...}:
+with nixpkgs;
+stdenv.mkDerivation rec{
+	pname = "sfnt2woff-zopfli";
+	version = "1.3.1";
+	recursiveHash = true;
+	src = fetchFromGitHub {
+		owner = "bramstein";
+		repo = pname;
+		rev = "v${version}";
+		name = "${pname}-${version}";
+		sha256 = "wMB5B7kpARsZEXKF7XTdQP0+zbz97WS9GTI16hIQtxo=";
+	};
+	buildInputs = [ zlib ];
+	installPhase = ''
+		mkdir -p $out/bin
+		cp sfnt2woff-zopfli $out/bin
+	'';
+};