diff --git a/Changes b/Changes
index d74e95a..6fd0daf 100644
--- a/Changes
+++ b/Changes
@@ -1,8 +1,10 @@
 Revision history for App-Rak
 
 {{$NEXT}}
+     - Added support for --ack to activate a compatibility
+       layer for former "ack" users.
      - Added dependency on Needle::Compile to handle all the
-       pattern to Callable issues
+       pattern to Callable issues (just for CI for now)
      - Upped all dependencies where applicable
      - Hoperfully fixed Windows CI for now
 
diff --git a/README.md b/README.md
index 174a73a..dec567f 100644
--- a/README.md
+++ b/README.md
@@ -364,6 +364,18 @@ If specified, indicates the `Callable` that should return True to include a file
 
 See "CHECKING TIMES ON FILES" for more information about features that can be used inside the `Callable`.
 
+--ack
+-----
+
+Attempt to interpret following arguments as if they were arguments to the [`ack`](https://metacpan.org/pod/ack) utility. This is incomplete and may be subtly different in behaviour. Intended as a temporary measure for people used to using `ack`, while they train their muscle memory to use **rak** instead.
+
+If you'd like a list of the option configuration, you can use the `--list-custom-options` argument.
+
+```bash
+# Show the current mappinng of "ack" to "rak" options
+$ rak --ack --list-custom-options
+```
+
 --after-context=N
 -----------------
 
diff --git a/doc/App-Rak.rakudoc b/doc/App-Rak.rakudoc
index 3257578..62234e2 100644
--- a/doc/App-Rak.rakudoc
+++ b/doc/App-Rak.rakudoc
@@ -478,6 +478,24 @@ reliably.
 See "CHECKING TIMES ON FILES" for more information about features that
 can be used inside the C<Callable>.
 
+=head2 --ack
+
+Attempt to interpret following arguments as if they were arguments to the
+L<C<ack>|https://metacpan.org/pod/ack> utility.  This is incomplete and
+may be subtly different in behaviour.  Intended as a temporary measure
+for people used to using C<ack>, while they train their muscle memory
+to use B<rak> instead.
+
+If you'd like a list of the option configuration, you can use the
+C<--list-custom-options> argument.
+
+=begin code :lang<bash>
+
+# Show the current mappinng of "ack" to "rak" options
+$ rak --ack --list-custom-options
+
+=end code
+
 =head2 --after-context=N
 
 Indicate the number of lines that should be shown B<after> any line that
diff --git a/lib/App/Rak.rakumod b/lib/App/Rak.rakumod
index 4e14a3e..e2eae60 100644
--- a/lib/App/Rak.rakumod
+++ b/lib/App/Rak.rakumod
@@ -23,9 +23,9 @@ my constant BON  = "\e[1m";   # BOLD ON
 my constant BOFF = "\e[22m";  # BOLD OFF
 
 #- start of available options --------------------------------------------------
-#- Generated on 2024-05-12T20:26:03+02:00 by tools/makeOPTIONS.raku
+#- Generated on 2024-08-04T16:31:51+02:00 by tools/makeOPTIONS.raku
 #- PLEASE DON'T CHANGE ANYTHING BELOW THIS LINE
-my str @options = <absolute accept accessed after-context allow-loose-escapes allow-loose-quotes allow-whitespace auto-decompress auto-diag backtrace backup batch before-context blame-per-file blame-per-line blocks break checkout classify categorize context count-only created csv-per-line degree deny description device-number dir dont-catch dryrun ecosystem edit encoding eol escape exec execute-raku extensions file file-separator-null files-from files-with-matches files-without-matches filesize find formula frequencies gid group group-matches hard-links has-setgid has-setuid headers help highlight highlight-after highlight-before human ignorecase ignoremark inode invert-match is-empty is-executable is-group-executable is-group-readable is-group-writable is-moarvm is-owned-by-group is-owned-by-user is-owner-executable is-owner-readable is-owner-writable is-pdf is-readable is-sticky is-symbolic-link is-text is-world-executable is-world-readable is-world-writable is-writable json-per-elem json-per-file json-per-line keep-meta list-custom-options list-expanded-options list-known-extensions matches-only max-matches-per-file mbc mbc-frames mbc-strings meta-modified mode modified modify-files module only-first output-dir output-file pager paragraph-context passthru passthru-context paths paths-from pattern patterns-from pdf-info pdf-per-file pdf-per-line per-file per-line progress proximate rename-files quietly quote rak recurse-symlinked-dir recurse-unmatched-dir repository save sayer sep shell show-blame show-filename show-item-number silently smartcase smartmark sourcery stats stats-only strict summary-if-larger-than trim type uid under-version-control unicode unique user verbose version vimgrep with-line-endings>;
+my str @options = <absolute accept accessed ack after-context allow-loose-escapes allow-loose-quotes allow-whitespace auto-decompress auto-diag backtrace backup batch before-context blame-per-file blame-per-line blocks break checkout classify categorize context count-only created csv-per-line degree deny description device-number dir dont-catch dryrun ecosystem edit encoding eol escape exec execute-raku extensions file file-separator-null files-from files-with-matches files-without-matches filesize find formula frequencies gid group group-matches hard-links has-setgid has-setuid headers help highlight highlight-after highlight-before human ignorecase ignoremark inode invert-match is-empty is-executable is-group-executable is-group-readable is-group-writable is-moarvm is-owned-by-group is-owned-by-user is-owner-executable is-owner-readable is-owner-writable is-pdf is-readable is-sticky is-symbolic-link is-text is-world-executable is-world-readable is-world-writable is-writable json-per-elem json-per-file json-per-line keep-meta list-custom-options list-expanded-options list-known-extensions matches-only max-matches-per-file mbc mbc-frames mbc-strings meta-modified mode modified modify-files module only-first output-dir output-file pager paragraph-context passthru passthru-context paths paths-from pattern patterns-from pdf-info pdf-per-file pdf-per-line per-file per-line progress proximate rename-files quietly quote rak recurse-symlinked-dir recurse-unmatched-dir repository save sayer sep shell show-blame show-filename show-item-number silently smartcase smartmark sourcery stats stats-only strict summary-if-larger-than trim type uid under-version-control unicode unique user verbose version vimgrep with-line-endings>;
 #- PLEASE DON'T CHANGE ANYTHING ABOVE THIS LINE
 #- end of available options ----------------------------------------------------
 
@@ -91,6 +91,52 @@ my constant %falsies =
   unrestricted     => 'dir',
 ;
 
+# The JSON config to map "ack" arguments to "rak" arguments as closely as possible
+my constant %ack-interface-config =
+  "1"                => (:only-first,),
+  "A"                => (:after-context<!>,),
+  "B"                => (:before-context<!>,),
+  "c"                => (:count-only,),
+  "C"                => (:context<[2]>,),
+  "count"            => (:count-only,),
+  "dump"             => (:list-expanded-options,),
+  "f"                => (:find,),
+  "filename"         => (:show-filename,),
+  "follow"           => (:recurse-symlinked-dir,),
+  "group"            => (:group-matches,),
+  "h"                => (:!show-filename,),
+  "H"                => (:show-filename,),
+  "heading"          => (:group-matches,),
+  "help-types"       => (:extensions<[*]>,),
+  "i"                => (:ignorecase,),
+  "I"                => (:!ignorecase,),
+  "ignore-case"      => (:ignorecase,),
+  "ignore-dir"       => (:dir,),
+  "ignore-directory" => (:dir,),
+  "k"                => (:extensions<[*]>,),
+  "known-types"      => (:extensions<[*]>,),
+  "l"                => (:files-with-matches,),
+  "L"                => (:files-without-matches,),
+  "m"                => (:max-matches-per-file,),
+  "n"                => (:!dir,),
+  "man"              => (:help,),
+  "match"            => (:pattern,),
+  "max-count"        => (:max-matches-per-file,),
+  "o"                => (:matches-only,),
+  "output"           => (:pattern,),
+  "p"                => (:proximate<!>,),
+  "P"                => (:proximate<0>,),
+  "print0"           => (:file-separator-null,),
+  "S"                => (:smartcase,),
+  "smart-case"       => (:smartcase,),
+  "t"                => (:extensions<!>,),
+  "type"             => (:extensions<!>,),
+  "TYPE"             => (:extensions<!>,),
+  "v"                => (:invert-match,),
+  "with-filename"    => (:show-filename,),
+  "x"                => (:files-from<->,),
+;
+
 # Options that only make sense after one main option
 my constant %sub-options =
   allow-loose-escapes => 'csv-per-line',
@@ -1526,6 +1572,10 @@ my sub option-accessed($value --> Nil) {
     set-filesystem-Instant('accessed', $value)
 }
 
+my sub option-ack($value --> Nil) {
+    %config := %ack-interface-config;
+}
+
 my sub option-after-context($value --> Nil) {
     set-result-Int('after-context', $value);
 }
diff --git a/resources/help.txt b/resources/help.txt
index 2b9b2d2..db2fe9d 100644
--- a/resources/help.txt
+++ b/resources/help.txt
@@ -173,6 +173,7 @@ Option management:
  --save=name            Translate --name to all other options specified,
                         remove if --save was the only option specified
  --description=text     Add description to custom option
+ --ack                  Activate "ack" compatibility options
  --list-custom-options  List all previously saved options
 
 General options:
diff --git a/resources/help/option.txt b/resources/help/option.txt
index 6ad78ca..9700b9e 100644
--- a/resources/help/option.txt
+++ b/resources/help/option.txt
@@ -71,6 +71,14 @@ $ rak --description="Perform search without regards to case" --save=i
 # Add custom option --y with description
 $ rak --description='Yep, there is a codepoint for it' --unicode --save=y
 
+--ack
+
+Attempt to interpret following arguments as if they were arguments to the
+"ack" utility.  This is incomplete and may be subtly different in behaviour.
+Intended as a temporary measure for people used to using "ack", while they
+train their muscle memory to use "rak" instead.
+
 --list-custom-options
 
-List all currently known custom options.  Must be the only argument.
+List all currently known custom options.  Must be the only argument, but
+can also be used in conjunction with --ack.