diff --git a/dot_config/private_mc/mc.ext.ini b/dot_config/private_mc/mc.ext.ini
index 4f4a671..899f5a1 100644
--- a/dot_config/private_mc/mc.ext.ini
+++ b/dot_config/private_mc/mc.ext.ini
@@ -23,11 +23,11 @@
 # Section [Default] is optional. It is applied only if no other match was found.
 #
 # Sections like [Include/xxxx] can be referenced as "Include=xxxx" from other sections.
-# Section [Include/xxxx] can be located as before as after sections that point to it.
+# Section [Include/xxxx] can be located before or after sections that point to it.
 #
 # Sections are processed from top to bottom, thus the order is important.
-# If there are more than one sections with the same name in this file, the first
-# section will be used.
+# Multiple sections with the same name are allowed, they are merged together.
+# Sections may contain the same key multiple times; the last entry wins.
 #
 # [Default] should be a catch-all action and come last.
 #
@@ -38,7 +38,7 @@
 #        Directory
 #            Matches any directory matching regular expression.
 #            Always case sensitive.
-#            This key has the highest priority over other keys. If this key is in a section,
+#            This key has the highest priority over other keys. If this key is present,
 #            other keys are ignored.
 #
 #        Type
@@ -53,12 +53,16 @@
 #
 #        Regex
 #            An extended regular expression
-#            Please note that we are using the PCRE library and thus \| matches
+#            Please note that we are using the PCRE library and thus \\| matches
 #            the literal | and | has a special meaning (or), and () have a special meaning
-#            and \( \) stand for literal ( ).
+#            and \\( \\) stand for literal ( ).
+#
+#            An unescaped backslash \ is handled as invalid escape sequences in glib = 2.77.3 and
+#            glib >= 2.79 (https://gitlab.gnome.org/GNOME/glib/-/issues/3094), therefore backslash
+#            must be escaped.
 #
 #            Example:
-#                Regex=\.t(ar\.lzma|lz)$
+#                Regex=\\.t(ar\\.lzma|lz)$
 #            matches *.tar.lzma or *.tlz.
 #
 #        RegexIgnoreCase [true|false]
@@ -188,7 +192,7 @@ Version=4.0
 
 ### GIT Repo ###
 [gitfs changeset]
-Regex=^\[git\]
+Regex=^\\[git\\]
 Open=%cd %p/changesetfs://
 View=%cd %p/patchsetfs://
 
@@ -200,7 +204,7 @@ View=%cd %p/patchsetfs://
 
 # .tgz, .tpz, .tar.gz, .tar.z, .tar.Z
 [tar.gzip]
-Regex=\.t([gp]?z|ar\.g?[zZ])$
+Regex=\\.t([gp]?z|ar\\.g?[zZ])$
 Include=tar.gz
 
 [ipk]
@@ -899,6 +903,12 @@ ShellIgnoreCase=true
 Open=/usr/lib/mc/ext.d/archive.sh view lz4 %var{PAGER:more}
 View=%view{ascii} /usr/lib/mc/ext.d/archive.sh view lz4
 
+[lzo]
+Shell=.lzo
+ShellIgnoreCase=true
+Open=/usr/lib/mc/ext.d/archive.sh view lzo %var{PAGER:more}
+View=%view{ascii} /usr/lib/mc/ext.d/archive.sh view lzo
+
 [wim]
 Shell=.wim
 ShellIgnoreCase=true
@@ -911,7 +921,7 @@ View=%view{ascii} /usr/lib/mc/ext.d/archive.sh view wim
 ### Archives ###
 
 [mailbox]
-Type=^ASCII\ mail\ text
+Type=^ASCII mail text
 Open=%cd %p/mailfs://
 
 
@@ -923,12 +933,16 @@ Type=^ELF
 #Open=%var{PAGER:more} %f
 View=%view{ascii} /usr/lib/mc/ext.d/misc.sh view elf
 
+[Mach-O]
+Type=^Mach-O
+#Open=%var{PAGER:more} %f
+View=%view{ascii} /usr/lib/mc/ext.d/misc.sh view dylib
 
 ### Documentation ###
 
 # GNU Info page
 [info-by-type]
-Type=^Info\ text
+Type=^Info text
 Open=/usr/lib/mc/ext.d/text.sh open info
 
 # Manual page - compressed