Replace jekyll-gist embeds with inline code blocks

Fix Ruby 3.4 compatibility issue where jekyll-gist 1.5.0 fails with
"uninitialized constant Jekyll::Gist::GistTag::TimeoutError".

Replaced gist embeds in three old posts with inline code blocks
containing the original gist content.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: andrewbolster

_posts/2013-12-20-installing-ubuntu-touch-on-the-nexus-7.md

@@ -33,6 +33,11 @@ So without further ado, the assumption: If you're thinking of putting Ubuntu on
 
 Once that's all wrapped up, onto the meat.
 
-{% gist 8057017 %}
+```bash
+sudo add-apt-repository ppa:phablet-team/tools
+sudo apt-get update
+sudo aptitude -y install phablet-tools android-tools-adb android-tools-fastboot
+phablet-flash ubuntu-system --channel devel --bootstrap
+```
 
 Job done! Hopefully Cyanogenmod can take some inspiration for this.

_posts/2014-01-20-unicode-madness-in-jekyll.md

@@ -30,14 +30,21 @@ So a file with no contents and a completly different title was still screwing th
 
 So what's the difference between it and any other file?
 
-{% gist 8520058 %}
+```bash
+➜  _posts git:(master) ✗ file 2014-01-20-schreibdochmal_19_01_14.md
+2014-01-20-schreibdochmal_19_01_14.md: exported SGML document, UTF-8 Unicode (with BOM) text, with very long lines
+➜  _posts git:(master) ✗ file 2014-01-11-the-making-of-a-timelapse.md
+2014-01-11-the-making-of-a-timelapse.md: ASCII text, with very long lines
+```
 
 Wut?...
 
 Funnily enough this is hinted as a problem in [this stack overflow post](http://stackoverflow.com/questions/12467632/jekyll-regeneration-failed-with-unicode-posts) but doesn't propose a solution. (Although `chcp 650001` didn't work for me), but it mentioned the [BOM](http://en.wikipedia.org/wiki/Byte_order_mark), or Byte Order Mark, an invisible endiness indicator that sits at the front of a text stream waiting to spoil your day.
 
 Long story short, can be fixed by [this answer](http://stackoverflow.com/questions/1068650/using-awk-to-remove-the-byte-order-mark)
 
-{% gist 8520118 %}
+```bash
+awk '{if(NR==1)sub(/^\xef\xbb\xbf/,"");print}' INFILE > OUTFILE
+```
 
 Hopefully this helps someone along later on.

_posts/2014-04-09-generating-a-unit-3-vector-in-python-uniform-spherical-projection.md

@@ -22,4 +22,27 @@ As part of my PhD work I'm building different behaviours for virtual submarines.
 
 So to make things easier, I stole [this StackOverflow answer from dmckee](http://stackoverflow.com/a/5408843/252556) and tidied it up a bit for my purposes. (Assuming everyone else is like me and does `import numpy as np`)
 
-{% gist 10274979 %}
+```python
+def random_three_vector():
+    """
+    Generates a random 3D unit vector (direction) with a uniform spherical distribution
+    Algo from http://stackoverflow.com/questions/5408276/python-uniform-spherical-distribution
+    :return:
+    """
+    phi = np.random.uniform(0,np.pi*2)
+    costheta = np.random.uniform(-1,1)
+
+    theta = np.arccos( costheta )
+    x = np.sin( theta) * np.cos( phi )
+    y = np.sin( theta) * np.sin( phi )
+    z = np.cos( theta )
+    return (x,y,z)
+
+# Example IPython code to test the uniformity of the distribution
+from pylab import scatter
+threetups = []
+for _ in xrange(1000):
+    threetups.append(random_three_vector())
+zipped = zip(*threetups)
+scatter(*zipped[0:2])
+```