Junho Choi (최준호) junhochoi

## macOS Internals.md

      
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                kconner
                / macOS Internals.md
            
            
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              June 21, 2024 20:02
            
              
                macOS Internals
              
          
    macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.
Starting Points

How to use this gist

You've got two main options:

  
## mac_utf8_insanity.md

      
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                JamesChevalier
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                Unicode on Mac is insane. Mac OS X uses NFD while everything else uses NFC. This fixes that.
              
          
    convmv manpage
Install convmv if you don't have it
sudo apt-get install convmv
Convert all files in a directory from NFD to NFC:
convmv -r -f utf8 -t utf8 --nfc --notest .

  
## trim_enabler.txt
#
# UPDATE for 10.10.4+: please consider this patch obsolete, as apple provides a tool called "trimforce" to enable trim support for 3rd party SSDs
# just run "sudo trimforce enable" to activate the trim support from now on!
#
# Original version by Grant Parnell is offline (http://digitaldj.net/2011/07/21/trim-enabler-for-lion/)
# Update July 2014: no longer offline, see https://digitaldj.net/blog/2011/11/17/trim-enabler-for-os-x-lion-mountain-lion-mavericks/
#
# Looks for "Apple" string in HD kext, changes it to a wildcard match for anything
#
# Alternative to http://www.groths.org/trim-enabler-3-0-released/

## MacOSXDefaultFontFallbacksChanger.command
#!/usr/bin/env bash
# A script for changing Mac OS X's default fonts
# Author: Jaeho Shin <netj@sparcs.org>
# Created: 2011-07-22

### MacOSXDefaultFontFallbacksChanger #########################################
## Mac OS X 기본 글꼴 설정 변경 도구 – 1.2.1 (2012-08)
##                    http://netj.github.com/MacOSXDefaultFontFallbacksChanger
###############################################################################
	#
	# UPDATE for 10.10.4+: please consider this patch obsolete, as apple provides a tool called "trimforce" to enable trim support for 3rd party SSDs
	# just run "sudo trimforce enable" to activate the trim support from now on!
	#
	# Original version by Grant Parnell is offline (http://digitaldj.net/2011/07/21/trim-enabler-for-lion/)
	# Update July 2014: no longer offline, see https://digitaldj.net/blog/2011/11/17/trim-enabler-for-os-x-lion-mountain-lion-mavericks/
	#
	# Looks for "Apple" string in HD kext, changes it to a wildcard match for anything
	#
	# Alternative to http://www.groths.org/trim-enabler-3-0-released/
	#!/usr/bin/env bash
	# A script for changing Mac OS X's default fonts
	# Author: Jaeho Shin <netj@sparcs.org>
	# Created: 2011-07-22

	### MacOSXDefaultFontFallbacksChanger #########################################
	## Mac OS X 기본 글꼴 설정 변경 도구 – 1.2.1 (2012-08)
	## http://netj.github.com/MacOSXDefaultFontFallbacksChanger
	###############################################################################