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remove unnecessary 10.15 stuff
Since a few users have encountered difficulties in installing, and updating to, beta releases of [[Installation|ConTeXt LMTX]] on macOS, below we describe an installation procedure for macOS. For other platforms the procedures are more or less analogous.
== Installing LMTX on macOS up to 10.14 MacOS == As of December 2019, the following instructions work for macOS up to version 10.14 but do not work for macOS 10.15 Catalina, due to the Apple's System Integrity Protection (SIP).
First download [http://lmtx.pragma-ade.nl/install-lmtx/context-osx-64.zip context-osx-64.zip]. Put the unzipped folder {{code|context-osx-64/}} wherever you wish—for instance, in your home directory. Thus the path to your future LMTX directory will be {{code|'''~/context-osx-64/'''}} (from now on, this is what we assume).
Then you should be able to execute the command
sh install.sh
 
It may happen that macOS will not allow you to execute the above shell command, or the {{code|mtxrun}} script which is called by {{code|install.sh}}. In that case, you should open System Preferences (from the Apple menu) and choose Security & Privacy, then go to the General pane. There you should be able to authorize the shell script, which has been blocked, to be executed. When you issue the command again, macOS will ask you whether you really want to execute it.
After that, if everything goes smoothly, a complete functioning tree of LMTX, complete with dozens of manuals, will be installed in {{code|'''~/context-osx-64/'''}}. Whenever you want to update your installation of LMTX, it is enough to go to that directory in Terminal & run the installation script again:
sh install.sh
 
== Installing LMTX on macOS 10.15 Catalina ==
 
Recent versions of MacOS prevent <code>mtxrun</code> from running because it is not a signed executable. You have at least two options to bypass such restrictions:
 
* execute <code>xattr -d com.apple.quarantine context-osx-64/bin/mtxrun</code>, or
* (not recommended) go to System Preferences > Security & Privacy > Privacy tab > Developer Tools, and allow Terminal to run software that does not meet the system's security policy.
== Running LMTX from the Terminal ==
If you want to run LMTX from the Terminal interface in any directory, you should add the path of your installation to $PATH by adding this to your {{code|.bashrc}} (10.14 and earlier) or {{code|.zshenv}} (10.15) (or another configuration file, depending on your flavor of shell interface): export PATH=$PATH:'''~/context-osx-64/'''bin:'''~/context-osx-64/'''tex/texmf-osx-64/bin
''Reminder: if you have installed {{code|context-osx-64/}} elsewhere, please replace the segment {{code|'''~/context-osx-64/'''}} in the above code with the path to that directory.''
Alternatively, you could use a TeX editor such as [https://pages.uoregon.edu/koch/texshop/obtaining.html TeXShop]. Once TeXShop is installed, go to {{code|~/Library/TeXShop/Engine/}}, create a new file named {{code|ConTeXt LMTX.engine}}, open it in your preferred text editor, and add the following lines:
#!/bin/bash
export PATH=$PATH:'''~/context-osx-64/'''bin:'''~/context-osx-64/'''tex/texmf-osx-64/bin
'''~/context-osx-64/'''tex/texmf-osx-64/bin/mtxrun --autogenerate --script context --directives="system.showerror" --autopdf "$1" --purgeall

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