I figured out that you can include your options in a configuration file... so that you don't have to have an insanely long command with all of them set.

gource.cfg

[display]                                                                                               
multi-sampling=true                                                                                     
output-framerate=25                                                                                     
output-ppm-stream=gource.ppm                                                                            
viewport=1920x1080                                                                                      
                                                                                                        
[gource]                                                                                                
auto-skip-seconds=1                                                                                     
bloom-intensity=0.25                                                                                    
bloom-multiplier=0.75                                                                                   
dir-name-depth=2                                                                                        
dir-name-position=1.0                                                                                   
file-idle-time=0                                                                                        
hide=filenames,progress                                                                                 
highlight-dirs=true                                                                                     
key=true                                                                                                
max-file-lag=0.1                                                                                        
seconds-per-day=0.25                                                                                    
title=Puppet Dev                                                                                        
user-scale=5  

gource.sh

gource --load-config gource.cfg
# I should learn more about the ffmpeg flags
ffmpeg -y -r 25 -f image2pipe -vcodec ppm -i gource.ppm -vcodec libx264 -preset medium -pix_fmt yuv420p -crf 1 -threads 0 -bf 0 gource.mp4