diff --git a/curacao/options.nix b/curacao/options.nix
index a941a5f..6bed395 100644
--- a/curacao/options.nix
+++ b/curacao/options.nix
@@ -6,6 +6,13 @@
       x11_screens = [ "HDMI-1-0" "eDP1" ];
       maxVideoHeight = 1440;
       numlock = true;
+      phasesBrightness = {
+        enable = true;
+        backlight = "intel_backlight";
+        jour = 40000;
+        crepuscule = 10000;
+        nuit = 1;
+      };
     };
     dev = {
       docker = true;
diff --git a/hm/scripts/crepuscule b/hm/scripts/crepuscule
deleted file mode 100755
index bedc04e..0000000
--- a/hm/scripts/crepuscule
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-
-# FIXME
-
-if [ "$(cat /etc/hostname)" = "curacao.geoffrey.frogeye.fr" ]
-then
-    echo 10000 | sudo tee /sys/class/backlight/intel_backlight/brightness
-elif [ "$(cat /etc/hostname)" = "pindakaas.geoffrey.frogeye.fr" ]
-then
-    echo 3000 | sudo tee /sys/class/backlight/edp-backlight/brightness
-fi
-automatrop -e base16_scheme=solarized-dark --tags color
diff --git a/hm/scripts/jour b/hm/scripts/jour
deleted file mode 100755
index eb086d5..0000000
--- a/hm/scripts/jour
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-
-# FIXME
-
-if [ "$(cat /etc/hostname)" = "curacao.geoffrey.frogeye.fr" ]
-then
-    echo 40000 | sudo tee /sys/class/backlight/intel_backlight/brightness
-elif [ "$(cat /etc/hostname)" = "pindakaas.geoffrey.frogeye.fr" ]
-then
-    echo 3500 | sudo tee /sys/class/backlight/edp-backlight/brightness
-fi
-automatrop -e base16_scheme=solarized-light --tags color
diff --git a/hm/scripts/nuit b/hm/scripts/nuit
deleted file mode 100755
index 5f409ec..0000000
--- a/hm/scripts/nuit
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-
-# FIXME
-
-if [ "$(cat /etc/hostname)" = "curacao.geoffrey.frogeye.fr" ]
-then
-    echo 1 | sudo tee /sys/class/backlight/intel_backlight/brightness
-elif [ "$(cat /etc/hostname)" = "pindakaas.geoffrey.frogeye.fr" ]
-then
-    echo 700 | sudo tee /sys/class/backlight/edp-backlight/brightness
-fi
-automatrop -e base16_scheme=solarized-dark --tags color
diff --git a/hm/style.nix b/hm/style.nix
index b29c368..a98707b 100644
--- a/hm/style.nix
+++ b/hm/style.nix
@@ -1,14 +1,21 @@
-{ pkgs, config, fetchFromGitHub, ... }:
+{ pkgs, config, lib, ... }:
 let
   # Currently last commit in https://github.com/danth/stylix/pull/194
   stylix = builtins.fetchTarball "https://github.com/willemml/stylix/archive/2ed2b0086b41d582aca26e083c19c0e47c8991e3.tar.gz";
+  polarityFile = "${config.xdg.stateHome}/theme_polarity";
+  polarity = if builtins.pathExists polarityFile then lib.strings.fileContents polarityFile else "light";
+  phases = [
+    { command = "jour"; polarity = "light"; }
+    { command = "crepuscule"; polarity = "dark"; }
+    { command = "nuit"; polarity = "dark"; }
+  ];
+  cfg = config.frogeye.desktop.phasesBrightness;
 in
 {
   imports = [ (import stylix).homeManagerModules.stylix ];
 
   stylix = {
-    # FIXME Changeable at runtime
-    base16Scheme = "${pkgs.base16-schemes}/share/themes/solarized-dark.yaml";
+    base16Scheme = "${pkgs.base16-schemes}/share/themes/solarized-${polarity}.yaml";
     image = builtins.fetchurl {
       url = "https://get.wallhere.com/photo/sunlight-abstract-minimalism-green-simple-circle-light-leaf-wave-material-line-wing-computer-wallpaper-font-close-up-macro-photography-124350.png";
       sha256 = "sha256:1zfq3f3v34i45mi72pkfqphm8kbhczsg260xjfl6dbydy91d7y93";
@@ -30,10 +37,32 @@ in
     };
   };
 
+  # Setting a custom base16 theme via nixvim:
+  # - Is required so nixvim works
+  # - For the rest only works on dark polarity, use the colorscheme otherwise... shrug
+  programs.nixvim.colorschemes.base16.colorscheme = "solarized-${polarity}";
+
   # Fix https://nix-community.github.io/home-manager/index.html#_why_do_i_get_an_error_message_about_literal_ca_desrt_dconf_literal_or_literal_dconf_service_literal
   # home.packages = [ pkgs.dconf ];
   dconf.enable = false; # Otherwise standalone home-manager complains it can't find /etc/dbus-1/session.conf on Arch.
   # Symlinking it to /usr/share/dbus-1/session.conf goes further but not much.
 
-
+  # TODO Use xbacklight instead (pindakaas doesn't seem to support it OOTB)
+  home.packages = map
+    (phase: (pkgs.writeShellApplication {
+      name = "${phase.command}";
+      text = (lib.optionalString cfg.enable ''
+        echo ${builtins.toString (builtins.getAttr phase.command cfg)} | sudo tee /sys/class/backlight/${cfg.backlight}/brightness
+        '') + ''
+        echo ${phase.polarity} > ${polarityFile}
+        if command -v home-manager
+        then
+            home-manager switch
+        else
+            sudo nixos-rebuild switch
+        fi
+      '';
+    })
+    )
+    phases;
 }
diff --git a/options.nix b/options.nix
index 6e7bf15..a503abd 100644
--- a/options.nix
+++ b/options.nix
@@ -17,6 +17,13 @@
         description = "Maximum video height in pixel the machine can reasonably watch";
         default = 1080;
       };
+      phasesBrightness = {
+        enable = lib.mkEnableOption "Set a specific brightness for the screen when running phases commands";
+        backlight = lib.mkOption { type = lib.types.str; description = "Name of the backlight device"; };
+        jour = lib.mkOption { type = lib.types.int; description = "brightness value for phase: jour"; };
+        crepuscule = lib.mkOption { type = lib.types.int; description = "brightness value for phase: crepuscule"; };
+        nuit = lib.mkOption { type = lib.types.int; description = "brightness value for phase: nuit"; };
+      };
     };
     dev = {
       ansible = lib.mkEnableOption "Ansible dev stuff";
diff --git a/os/common.nix b/os/common.nix
index 2195533..35c8d29 100644
--- a/os/common.nix
+++ b/os/common.nix
@@ -13,6 +13,7 @@
   services.printing.enable = true;
 
   # Enable passwordless sudo
+  # TODO execWheelOnly? sudo-rs?
   security.sudo.extraRules = [{
     groups = [ "wheel" ];
     commands = [{
diff --git a/pindakaas/options.nix b/pindakaas/options.nix
index b3b7910..8435783 100644
--- a/pindakaas/options.nix
+++ b/pindakaas/options.nix
@@ -5,6 +5,13 @@
     xorg = true;
     x11_screens = [ "DP-1" "eDP-1" ];
     maxVideoHeight = 720;
+    phasesBrightness = {
+      enable = true;
+      backlight = "edp-backlight";
+      jour = 3500;
+      crepuscule = 3000;
+      nuit = 700;
+    };
   };
   frogeye.dev.docker = true;
 }