Various changes

- `hs` host
  - cam subdomain behind reverse proxy
  - dynamic dns updater script
- `pc` host
  - ext4 instead of btrfs
  - ca-derivations experimental feature
- nix from unstable channel (2.8)
- cura from stable (unstable went broken)
- Emacs
  - company-nixos-options
  - helm-nixos-options
  - nix-modeline
  - disable format hook on save for nix mode
- nix from master (only in overlay, not used)
- bat (alias for cat)
- batman (alias for batman)
- disabled weird extra options for nix I couldn't even remember of
- Fira Code for sway/waybar
- New plain style for waybar

users/profiles/sway/style.css

@@ -1,9 +1,6 @@
 * {
     border: none;
-    border-radius: 5;
-    /* `otf-font-awesome` is required to be installed for icons */
-    /* font matches sway-config.nix */
-    font-family: "DejaVu Sans";
+    font-family: "Fira Code";
     font-weight: bold;
     font-size: 9pt;
     min-height: 0;
@@ -17,40 +14,23 @@ window#waybar {
     transition-duration: .5s;
 }
 
+window .modules-right * {
+    margin: 0 1rem;
+}
+
 window#waybar.hidden {
     opacity: 0.2;
 }
 
-/*
-window#waybar.empty {
-    background-color: transparent;
-}
-window#waybar.solo {
-    background-color: #FFFFFF;
-}
-*/
-
-window#waybar.termite {
-    background-color: #3F3F3F;
-}
-
-window#waybar.chromium {
-    background-color: #000000;
-    border: none;
-}
-
 #workspaces button {
     padding: 0 5px;
     background-color: transparent;
     color: #ffffff;
-    border-bottom: 3px solid transparent;
 }
 
 /* https://github.com/Alexays/Waybar/wiki/FAQ#the-workspace-buttons-have-a-strange-hover-effect */
 #workspaces button:hover {
     background: rgba(0, 0, 0, 0.2);
-    box-shadow: inherit;
-    border-bottom: 3px solid #ffffff;
 }
 
 #workspaces button.current_output {
@@ -69,44 +49,7 @@ window#waybar.chromium {
     background-color: #eb4d4b;
 }
 
-#mode {
-    background-color: #64727D;
-    border-bottom: 3px solid #ffffff;
-}
 
-#clock,
-#battery,
-#cpu,
-#memory,
-#temperature,
-#backlight,
-#network,
-#pulseaudio,
-#custom-media,
-.srht-failed,
-.srht-success,
-#tray,
-#mode,
-#idle_inhibitor,
-#mpd {
-    padding: 0 10px;
-    margin: 0 4px;
-    color: #ffffff;
-}
-
-#clock {
-    background-color: #000000;
-}
-
-#battery {
-    background-color: #ffffff;
-    color: #000000;
-}
-
-#battery.charging {
-    color: #ffffff;
-    background-color: #26A65B;
-}
 
 @keyframes blink {
     to {
@@ -115,105 +58,6 @@ window#waybar.chromium {
     }
 }
 
-#battery.critical:not(.charging) {
-    background-color: #f53c3c;
-    color: #ffffff;
-    animation-name: blink;
-    animation-duration: 0.5s;
-    animation-timing-function: linear;
-    animation-iteration-count: infinite;
-    animation-direction: alternate;
-}
-
 label:focus {
     background-color: #000000;
 }
-
-#cpu {
-    background-color: #06989A;
-}
-
-#memory {
-    background-color: #2980b9;
-}
-
-#backlight {
-    background-color: #555753;
-}
-
-#network {
-    background-color: #4E9A06;
-}
-
-#network.disconnected {
-    background-color: #f53c3c;
-}
-
-#pulseaudio {
-    background-color: #75507B;
-}
-
-#pulseaudio.muted {
-    background-color: #90b1b1;
-    color: #2a5c45;
-}
-
-#custom-media {
-    background-color: #66cc99;
-    color: #2a5c45;
-    min-width: 100px;
-}
-
-#custom-media.custom-spotify {
-    background-color: #66cc99;
-}
-
-#custom-media.custom-vlc {
-    background-color: #ffa000;
-}
-
-#temperature {
-    background-color: #f0932b;
-}
-
-#temperature.critical {
-    background-color: #eb4d4b;
-}
-
-#tray {
-    background-color: #C4A000;
-}
-
-#idle_inhibitor {
-    background-color: #2d3436;
-}
-
-#idle_inhibitor.activated {
-    background-color: #ecf0f1;
-    color: #2d3436;
-}
-
-#mpd {
-    background-color: #66cc99;
-    color: #2a5c45;
-}
-
-#mpd.disconnected {
-    background-color: #f53c3c;
-}
-
-#mpd.stopped {
-    background-color: #90b1b1;
-}
-
-#mpd.paused {
-    background-color: #51a37a;
-}
-
-.srht-success {
-    background-color: #4E9A06;
-}
-
-.srht-failed {
-    background-color: #f53c3c;
-}