diff --git a/VERSION b/VERSION
index e4ecad26..a6b16040 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.11.4
\ No newline at end of file
+8.12.0
\ No newline at end of file
diff --git a/config/dunst.nix b/config/dunst.nix
index b60e93ea..1d4e0c13 100644
--- a/config/dunst.nix
+++ b/config/dunst.nix
@@ -10,7 +10,7 @@
     };
     settings = {
       global = {
-        font = "Iosevka Nerd Font 10";
+        font = "Iosevka Custom 10";
         markup = "yes";
         plain_text = "no";
         format = "<b>%s</b>\\n%b";
diff --git a/config/emacs/init.el b/config/emacs/init.el
index 9dc57e81..c4198eac 100644
--- a/config/emacs/init.el
+++ b/config/emacs/init.el
@@ -5,7 +5,7 @@
 (menu-bar-mode 0)
 (scroll-bar-mode 0)
 (tool-bar-mode 0)
-(set-face-attribute 'default t :family "Iosevka Nerd Font Mono" :height 110)
+(set-face-attribute 'default t :family "Iosevka Custom" :height 110)
 (require 'package)
 (setq-default frames-only-mode t
               indent-tabs-mode nil
@@ -133,6 +133,17 @@ Null prefix argument turns off the mode."
 (use-package hl-todo
   :demand
   :config (global-hl-todo-mode t))
+(use-package ligature
+  :config
+  (ligature-set-ligatures
+   'prog-mode
+   '("-<<" "-<" "-<-" "<--" "<---" "<<-" "<-" "->" "->>" "-->" "--->" "->-" ">-" ">>-"
+     "=<<" "=<" "=<=" "<==" "<<=" "<=" "=>" "=>>" "==>" "===>" "=>=" ">=" ">>="
+     "<->" "<-->" "<--->" "<---->" "<=>" "<==>" "<===>" "<====>" "::" ":::" "__"
+     "<~~" "</" "</>" "/>" "~~>" "==" "!=" "/=" "~=" "<>" "===" "!==" "!===" "=/=" "=!="
+     "<:" ":=" "*=" "*+" "<*" "<*>" "*>" "<|" "<|>" "|>" "<." "<.>" ".>" "+*" "=*" "=:" ":>"
+     "(*" "*)" "/*" "*/" "[|" "|]" "{|" "|}" "++" "+++" "\\/" "/\\" "|-" "-|" "<!--" "<!---"))
+  (global-ligature-mode t))
 (use-package magit
   :demand
   ;; FIXME: :config (global-magit-file-mode t)
diff --git a/config/fonts.nix b/config/fonts.nix
index 10a262a0..8c574d1c 100644
--- a/config/fonts.nix
+++ b/config/fonts.nix
@@ -2,6 +2,6 @@
 {
   fonts.fontconfig.enable = true;
   home.packages = with pkgs; [
-    (nerdfonts.override { fonts = [ "Iosevka" ]; })
+    iosevka-custom
   ];
 }
diff --git a/config/kitty.nix b/config/kitty.nix
index 9e53bd18..d92f9ac9 100644
--- a/config/kitty.nix
+++ b/config/kitty.nix
@@ -8,8 +8,8 @@
       include theme.conf
     '';
     font = {
-      name = "Iosevka Nerd Font Mono";
-      package = (pkgs.nerdfonts.override { fonts = [ "Iosevka" ]; });
+      name = "Iosevka Custom";
+      package = pkgs.iosevka-custom;
     };
     keybindings = {
       "kitty_mod+enter" = "new_window_with_cwd";
diff --git a/config/rofi.nix b/config/rofi.nix
index 760f4173..fe301ef7 100644
--- a/config/rofi.nix
+++ b/config/rofi.nix
@@ -15,7 +15,7 @@
 
   programs.rofi = {
     enable = true;
-    font = "Iosevka Nerd Font 18";
+    font = "Iosevka Custom 18";
     pass = {
       enable = true;
       extraConfig = ''
diff --git a/config/xmobar/xmobarrc b/config/xmobar/xmobarrc
index 99a0fd9c..a070bd7a 100644
--- a/config/xmobar/xmobarrc
+++ b/config/xmobar/xmobarrc
@@ -1,5 +1,5 @@
 Config
-  { font = "Iosevka Nerd Font 24",
+  { font = "Iosevka Custom 24",
     additionalFonts = ["Noto Color Emoji 24"],
     allDesktops = True,
     bgColor = "#242424",
diff --git a/config/xmonad/emacs.el b/config/xmonad/emacs.el
index 940f765f..b08e3a81 100644
--- a/config/xmonad/emacs.el
+++ b/config/xmonad/emacs.el
@@ -18,7 +18,7 @@
 (global-set-key (kbd "C-x C-k") 'kill-this-buffer)
 (global-set-key (kbd "s-u") 'revert-buffer)
 
-(set-face-attribute 'default nil :family "Iosevka Nerd Font Mono" :height 110)
+(set-face-attribute 'default nil :family "Iosevka Custom" :height 110)
 
 (eval-when-compile
   (require 'use-package))
diff --git a/default.nix b/default.nix
index dbf35e93..f1c56351 100644
--- a/default.nix
+++ b/default.nix
@@ -1,7 +1,7 @@
 { stdenv
 , nix-gitignore
 , makeFontsConf
-, iosevka
+, iosevka-custom
 , gawk
 , noweb
 , python3Packages
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   ] ./.;
 
   FONTCONFIG_FILE = makeFontsConf {
-    fontDirectories = [ iosevka ];
+    fontDirectories = [ iosevka-custom ];
   };
 
   configurePhase = ''
diff --git a/flake.nix b/flake.nix
index f32428be..d67bfee8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -64,6 +64,21 @@
           lib.composeManyExtensions
             (lib.attrValues
               (lib.filterAttrs (name: _: name != "default") self.overlays));
+        iosevka-custom = final: prev: {
+          # https://typeof.net/Iosevka/customizer
+          iosevka-custom = prev.iosevka.override {
+            privateBuildPlan = ''
+              [buildPlans.iosevka-custom]
+              family = "Iosevka Custom"
+              spacing = "normal"
+              serifs = "sans"
+              export-glyph-names = true
+              [buildPlans.iosevka-custom.ligations]
+              inherits = "dlig"
+            '';
+            set = "custom";
+          };
+        };
         home-manager = final: prev: {
           home-manager = inputs.home-manager.packages.${prev.system}.home-manager;
         };
@@ -191,6 +206,7 @@
           overlays = [
             inputs.emacs-overlay.overlay
             self.overlays.home-manager
+            self.overlays.iosevka-custom
             self.overlays.noweb
           ];
           inherit system;
@@ -298,6 +314,7 @@
         };
         packages = {
           default = self.packages.${system}.yurrriq-dotfiles;
+          inherit (pkgs) iosevka-custom;
           yurrriq-dotfiles = pkgs.callPackage ./. { };
         };
       });
diff --git a/src/config/dunst.nw b/src/config/dunst.nw
index 45fc5de5..db95a726 100644
--- a/src/config/dunst.nw
+++ b/src/config/dunst.nw
@@ -28,7 +28,7 @@ iconTheme = {
 @
 
 <<Configure Dunst global settings>>=
-font = "Iosevka Nerd Font 10";
+font = "Iosevka Custom 10";
 markup = "yes";
 plain_text = "no";
 format = "<b>%s</b>\\n%b";
diff --git a/src/config/emacs/init.nw b/src/config/emacs/init.nw
index 5ee39be8..f5ed224c 100644
--- a/src/config/emacs/init.nw
+++ b/src/config/emacs/init.nw
@@ -23,7 +23,7 @@
 @
 
 <<config/emacs/init.el>>=
-(set-face-attribute 'default t :family "Iosevka Nerd Font Mono" :height 110)
+(set-face-attribute 'default t :family "Iosevka Custom" :height 110)
 @
 
 <<config/emacs/init.el>>=
@@ -222,6 +222,22 @@ Null prefix argument turns off the mode."
   :config (global-hl-todo-mode t))
 @
 
+Use \hrefootnote{https://github.com/mickeynp/ligature.el}{ligature.el} for
+pretty ligatures.
+<<config/emacs/init.el>>=
+(use-package ligature
+  :config
+  (ligature-set-ligatures
+   'prog-mode
+   '("-@<<" "-<" "-<-" "<--" "<---" "@<<-" "<-" "->" "->>" "-->" "--->" "->-" ">-" ">>-"
+     "=@<<" "=<" "=<=" "<==" "@<<=" "<=" "=>" "=>>" "==>" "===>" "=>=" ">=" ">>="
+     "<->" "<-->" "<--->" "<---->" "<=>" "<==>" "<===>" "<====>" "::" ":::" "__"
+     "<~~" "</" "</>" "/>" "~~>" "==" "!=" "/=" "~=" "<>" "===" "!==" "!===" "=/=" "=!="
+     "<:" ":=" "*=" "*+" "<*" "<*>" "*>" "<|" "<|>" "|>" "<." "<.>" ".>" "+*" "=*" "=:" ":>"
+     "(*" "*)" "/*" "*/" "[|" "|]" "{|" "|}" "++" "+++" "\\/" "/\\" "|-" "-|" "<!--" "<!---"))
+  (global-ligature-mode t))
+@
+
 <<config/emacs/init.el>>=
 (use-package magit
   :demand
diff --git a/src/config/fonts.nw b/src/config/fonts.nw
index d92b7b5b..b2292c06 100644
--- a/src/config/fonts.nw
+++ b/src/config/fonts.nw
@@ -5,7 +5,7 @@
 {
   fonts.fontconfig.enable = true;
   home.packages = with pkgs; [
-    (nerdfonts.override { fonts = [ "Iosevka" ]; })
+    iosevka-custom
   ];
 }
 @
diff --git a/src/config/kitty.nw b/src/config/kitty.nw
index 682c9fb2..15832ca5 100644
--- a/src/config/kitty.nw
+++ b/src/config/kitty.nw
@@ -11,8 +11,8 @@
       include theme.conf
     '';
     font = {
-      name = "Iosevka Nerd Font Mono";
-      package = (pkgs.nerdfonts.override { fonts = [ "Iosevka" ]; });
+      name = "Iosevka Custom";
+      package = pkgs.iosevka-custom;
     };
     keybindings = {
       "kitty_mod+enter" = "new_window_with_cwd";
diff --git a/src/config/rofi.nw b/src/config/rofi.nw
index d6ec9de6..87e067fa 100644
--- a/src/config/rofi.nw
+++ b/src/config/rofi.nw
@@ -16,7 +16,7 @@
 
   programs.rofi = {
     enable = true;
-    font = "Iosevka Nerd Font 18";
+    font = "Iosevka Custom 18";
     pass = {
       enable = true;
       extraConfig = ''
diff --git a/src/flake.nw b/src/flake.nw
index 58b8324f..ddcdc3f9 100644
--- a/src/flake.nw
+++ b/src/flake.nw
@@ -162,13 +162,16 @@ overlays = {
 
 \subsection{Per-system pkgs}
 
-For each \nix{system}, define a package collection that composes the overlays from \nix{deadnix} and \nix{emacs-overlay}, as well as the locally-defined \nix{home-manager} and \nix{noweb} overlays.
+For each \nix{system}, define a package collection that composes the overlays
+from \nix{deadnix} and \nix{emacs-overlay}, as well as the locally-defined
+\nix{home-manager}, \nix{iosevka-custom}, and \nix{noweb} overlays.
 
 <<per-system outputs variables>>=
 pkgs = import inputs.nixpkgs {
   overlays = [
     inputs.emacs-overlay.overlay
     self.overlays.home-manager
+    self.overlays.iosevka-custom
     self.overlays.noweb
   ];
   inherit system;
@@ -366,6 +369,7 @@ The default package builds
 <<per-system outputs>>=
 packages = {
   default = self.packages.${system}.yurrriq-dotfiles;
+  inherit (pkgs) iosevka-custom;
   yurrriq-dotfiles = pkgs.callPackage ./. { };
 };
 @
@@ -491,6 +495,26 @@ pkgNameElem = names: pkg:
 
 \subsection{Overlays}
 
+Define a custom build of \hrefootnote{}{Iosevka}.
+
+<<overlays>>=
+iosevka-custom = final: prev: {
+  # https://typeof.net/Iosevka/customizer
+  iosevka-custom = prev.iosevka.override {
+    privateBuildPlan = ''
+      [buildPlans.iosevka-custom]
+      family = "Iosevka Custom"
+      spacing = "normal"
+      serifs = "sans"
+      export-glyph-names = true
+      [buildPlans.iosevka-custom.ligations]
+      inherits = "dlig"
+    '';
+    set = "custom";
+  };
+};
+@
+
 Define an overlay with a pinned version of home-manager.
 
 <<overlays>>=
diff --git a/src/packages.nw b/src/packages.nw
index 8ef89354..215409b4 100644
--- a/src/packages.nw
+++ b/src/packages.nw
@@ -5,7 +5,7 @@
 { stdenv
 , nix-gitignore
 , makeFontsConf
-, iosevka
+, iosevka-custom
 , gawk
 , noweb
 , python3Packages
@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   ] ./.;
 
   FONTCONFIG_FILE = makeFontsConf {
-    fontDirectories = [ iosevka ];
+    fontDirectories = [ iosevka-custom ];
   };
 
   configurePhase = ''
diff --git a/src/preamble.tex b/src/preamble.tex
index aee6b0fa..26093d63 100644
--- a/src/preamble.tex
+++ b/src/preamble.tex
@@ -2,7 +2,7 @@
 \renewcommand{\dateseparator}{.}
 
 \usepackage{fontspec}
-\setmonofont[Mapping=tex-text,Scale]{Iosevka}
+\setmonofont[Mapping=tex-text,Scale]{Iosevka Custom}
 
 \usepackage{hyperref}
 \newcommand{\hrefootnote}[2]{\href{#1}{#2}\footnote{\url{#1}}}