Update _tabs/about.md

_tabs/about.md

@@ -39,6 +39,7 @@ Linux User 🐧<br>
 - self-hosting
 - exploring foss projects
 - web development
+- android development
 - playing piano
 
 ### I am volunteer of...
@@ -48,6 +49,37 @@ Linux User 🐧<br>
 
 <hr>
 
+### Development Stack & Skills
+<details><summary>Expand!</summary>
+
+Note: How should I (or should I) rate these?
+
+- Version Control
+  - Git
+- Linux
+  - Debian
+    - Pardus
+    - Ubuntu
+    - Mint
+    - Kali
+  - NixOS
+  - Arch
+- Programming Languages
+  - Go
+  - C/Cpp
+  - Python
+  - JavaScript
+  - PHP
+- Scripting / Markup / Other Languages
+  - Bash
+  - HTML/CSS
+  - Markdown
+- ...
+
+- To be updated...
+
+</details>
+
 ### Experience
 - Summer Internship in <abbr title="Scientific and Technological Research Council of Turkey">TÜBİTAK</abbr>
   - 2 months (hybrid)
@@ -73,7 +105,7 @@ Linux User 🐧<br>
 <!-- TODO Linkedin'den doldur burayı -->
 
 ### Projects
-- see: [/projects](/projects)
+- See the [Projects](/projects) tab!
 
 ### Setup
 - NixOS [main]