Added showcase.

.installer/ignored

@@ -1,3 +1,4 @@
+^src
 ^\README\.md
 ^\.install
 ^install\.sh$

README.md

@@ -1,5 +1,50 @@
 # dabruh's dotfiles
 
+## Showcase
+
+SDDM with 3ximus's aerial theme
+
+![3ximus's aerial theme preview](https://raw.githubusercontent.com/3ximus/aerial-sddm-theme/9d354bb8f3bece90c91f3c0f39eeb45e9da80b0b/screens/preview1.gif)
+
+i3 with picom compositor and rounded corners
+
+![./src/screenshot.png](./src/screenshot.png)
+
+Layered i3 configuration:
+
+```sh
+>>> tree .config/i3
+.config/i3
+├── config.main
+├── config.post-main-00-security
+├── config.post-main-01-visuals
+├── config.post-main-10-applets
+├── config.post-main-10-audio
+├── config.post-main-10-misc
+├── config.pre-main-00-vars
+└── overrides
+    ├── config.post-main-90-gaps
+    ├── config.post-main-90-laptop
+    └── config.pre-main-90-cerberus
+
+~ >>> i3-config-builder
+Building i3 config... 🔨
+WRITE : 'config.pre-main-00-vars'.
+WRITE : 'config.pre-main-90-desktop'.
+WRITE : 'config.main'.
+WRITE : 'config.post-main-00-security'.
+WRITE : 'config.post-main-01-visuals'.
+WRITE : 'config.post-main-10-applets'.
+WRITE : 'config.post-main-10-audio'.
+WRITE : 'config.post-main-10-misc'.
+WRITE : 'config.post-main-90-gaps'.
+
+Restarting i3... 🔄
+2022-05-28 01:10:43 - Additional arguments passed. Sending them as a command to i3.
+[{"success":true}]
+
+~ >>>
+```
 
 ## Giving credit where credit is due