Whitelist .msi files inside subdir of ignored dir

.gitignore

# Some trickery in order to ignore everything inside bin except bin/release/*.msi paths (rules 2 & 3 are necessary to force git to crawl release subfolder of bin)
# 1. Ignore all files in any bin folder at any subpath
**/[Bb]in/* 					
# 2. Unignore bin/release subfolder at any subpath so that git will crawl it
!**/[Bb]in/[Rr]elease
# 3. Ignore all files inside bin/release subfolder at any subpath
**/[Bb]in/[Rr]elease/*			
# 4. But whitelist .msi files
!**/[Bb]in/[Rr]elease/*.msi

😅