diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 53e94d1..2449168 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,10 +1,10 @@
 name: Build
 
 on:
-    push:
-        branches: [main, dev]
-    pull_request:
-        branches: [main, dev]
+  push:
+    branches: [main, dev]
+  pull_request:
+    branches: [main, dev]
 
 jobs:
   build:
@@ -21,19 +21,29 @@ jobs:
         run: zig build
       - name: Test
         run: zig build test
-  # ubuntu-build:
-  #   timeout-minutes: 15
-  #   continue-on-error: true
-  #   runs-on: ubuntu-latest
-  #   steps:
-  #     - uses: actions/checkout@v2
-  #     - uses: goto-bus-stop/setup-zig@v2
-  #     - name: Install OpenGL
-  #       run: apt-get libglu1-mesa-dev freeglut3-dev mesa-common-dev
-  #     - name: Build
-  #       run: zig build
-  #     - name: Test
-  #       run: zig build test
+  ubuntu-build:
+    timeout-minutes: 15
+    continue-on-error: true
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: goto-bus-stop/setup-zig@v2
+      - name: setup dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install \
+            libasound2-dev \
+            libx11-dev \
+            libxrandr-dev \
+            libxi-dev \
+            libgl1-mesa-dev \
+            libglu1-mesa-dev \
+            libxcursor-dev \
+            libxinerama-dev
+      - name: Build
+        run: zig build
+      - name: Test
+        run: zig build test
   lint:
     needs: build
     timeout-minutes: 15
@@ -42,4 +52,4 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: goto-bus-stop/setup-zig@v2
-      - run: zig fmt --check .
\ No newline at end of file
+      - run: zig fmt --check .
diff --git a/README.md b/README.md
index 371b82c..c94acc9 100644
--- a/README.md
+++ b/README.md
@@ -6,12 +6,11 @@
 <p align="center">
 <img alt="GitHub License" src="https://img.shields.io/github/license/tonytins/mysimulation"> <img alt="GitHub Pull Requests" src="https://img.shields.io/github/issues-pr/tonytins/mysimulation"> <img alt="GitHub Issues" src="https://img.shields.io/github/issues/tonytins/mysimulation">
 
-
 </p>
 
 My Simulation is an **experimental** open source multiplayer game based upon The Sims Online. It attempts to mimic the original game as closely as possible while extending it with new features.
 
-The client is written in Zig and uses RayLab game engine with NioTSO's libraries for interacting with The Sims' proprietary formats. FreeSO's API server is used for the backend.
+The client is written in Zig and uses Raylib game engine with NioTSO's libraries for interacting with The Sims' proprietary formats. FreeSO's API server is used for the backend.
 
 ## Motivation
 
@@ -66,7 +65,7 @@ Further details on building can be found at [compiling.md](./docs/compiling.md).
 They're many ways you can contribute to My Simulation such as trying things out, filing bugs, and joining in the discussion!
 
 - How to Contribute (coming soon)
-- [Pull Requests]([https://github.com/tonytins/mysimulatione/pulls](https://github.com/tonytins/mysimulation/pulls)): [Open](https://github.com/tonytins/mysimulation/pulls)/[Closed](https://github.com/tonytins/mysimulation/pulls?q=is%3Apr+is%3Aclosed)
+- [Pull Requests](<[https://github.com/tonytins/mysimulatione/pulls](https://github.com/tonytins/mysimulation/pulls)>): [Open](https://github.com/tonytins/mysimulation/pulls)/[Closed](https://github.com/tonytins/mysimulation/pulls?q=is%3Apr+is%3Aclosed)
 
 ## License
 
@@ -77,11 +76,11 @@ the Free Software Foundation, either version 3 of the License, or
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
+along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 ## Disclaimer
 
diff --git a/docs/structure.md b/docs/structure.md
new file mode 100644
index 0000000..ba851a8
--- /dev/null
+++ b/docs/structure.md
@@ -0,0 +1,8 @@
+# Project Structure
+
+Work in progress.
+
+- **/src** Client written in Zig.
+- **/library** C code used by the client.
+- **/resources** Assets used by the game.
+- **/server** C# code from FreeSO.
diff --git a/library/extra/d20/README.md b/library/extra/d20/README.md
new file mode 100644
index 0000000..b45d8a3
--- /dev/null
+++ b/library/extra/d20/README.md
@@ -0,0 +1,19 @@
+# d20 System
+
+Normally, skills are used for reward interactions, repairs and increased payment. The d20 library is intended to agument this system by adding in a level of chance to certain.
+
+## Scale
+
+| Point | Modifier |
+| ----- | -------- |
+| 0     | -3       |
+| 1-2   | -2       |
+| 3-4   | -1       |
+| 5-6   | +0       |
+| 7-8   | +1       |
+| 9-10  | +2       |
+| 11-12 | +3       |
+| 13-14 | +4       |
+| 15-16 | +5       |
+| 17-18 | +6       |
+| 19-20 | +7       |
diff --git a/resources/items/dorm/chair/chair.json b/resources/items/dorm/chair/chair.json
index ee0fdd4..6118ea9 100644
--- a/resources/items/dorm/chair/chair.json
+++ b/resources/items/dorm/chair/chair.json
@@ -27,7 +27,7 @@
             "bladder": 0
         },
         "skills": {
-            "cooking": 5,
+            "cooking": 0,
             "mechanical": 0,
             "charism": 0,
             "body": 0,