diff --git a/pkgs/applications/networking/cluster/terraform/default.nix b/pkgs/applications/networking/cluster/terraform/default.nix
index fe653013cf4d..8c3cd76f3249 100644
--- a/pkgs/applications/networking/cluster/terraform/default.nix
+++ b/pkgs/applications/networking/cluster/terraform/default.nix
@@ -65,6 +65,7 @@ let
           zowoq
           techknowlogick
         ];
+        mainProgram = "terraform";
       };
     } // attrs');
 
diff --git a/pkgs/development/ocaml-modules/ocamlformat/ocamlformat.nix b/pkgs/development/ocaml-modules/ocamlformat/ocamlformat.nix
index 9b5b59ffae05..3ebc179f8601 100644
--- a/pkgs/development/ocaml-modules/ocamlformat/ocamlformat.nix
+++ b/pkgs/development/ocaml-modules/ocamlformat/ocamlformat.nix
@@ -1,5 +1,11 @@
-{ lib, callPackage, buildDunePackage, re, ocamlformat-lib, menhir
-, version ? "0.26.0" }:
+{ lib
+, callPackage
+, buildDunePackage
+, re
+, ocamlformat-lib
+, menhir
+, version ? "0.26.0"
+}:
 
 let inherit (callPackage ./generic.nix { inherit version; }) src library_deps;
 
@@ -22,5 +28,6 @@ in buildDunePackage {
     description = "Auto-formatter for OCaml code";
     maintainers = with lib.maintainers; [ Zimmi48 marsam Julow ];
     license = lib.licenses.mit;
+    mainProgram = "ocamlformat";
   };
 }
diff --git a/pkgs/development/python-modules/isort/default.nix b/pkgs/development/python-modules/isort/default.nix
index 5abfcc9737d0..6bf563af4784 100644
--- a/pkgs/development/python-modules/isort/default.nix
+++ b/pkgs/development/python-modules/isort/default.nix
@@ -1,4 +1,6 @@
-{ lib, buildPythonPackage, fetchFromGitHub
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
 , colorama
 , hypothesis
 , poetry-core
@@ -77,5 +79,6 @@ buildPythonPackage rec {
     homepage = "https://github.com/PyCQA/isort";
     license = licenses.mit;
     maintainers = with maintainers; [ couchemar ];
+    mainProgram = "isort";
   };
 }
diff --git a/pkgs/development/python-modules/mdformat/default.nix b/pkgs/development/python-modules/mdformat/default.nix
index 2891cd430803..3ac61c1a1888 100644
--- a/pkgs/development/python-modules/mdformat/default.nix
+++ b/pkgs/development/python-modules/mdformat/default.nix
@@ -88,13 +88,15 @@ let
       "mdformat"
     ];
 
-    passthru = {inherit withPlugins;};
+    passthru = { inherit withPlugins; };
 
     meta = with lib; {
       description = "CommonMark compliant Markdown formatter";
       homepage = "https://mdformat.rtfd.io/";
       license = with licenses; [ mit ];
       maintainers = with maintainers; [ fab aldoborrero ];
+      mainProgram = "mdformat";
     };
   };
-in package
+in
+package
diff --git a/pkgs/development/tools/beautysh/default.nix b/pkgs/development/tools/beautysh/default.nix
index e592133e59be..c66313671e4d 100644
--- a/pkgs/development/tools/beautysh/default.nix
+++ b/pkgs/development/tools/beautysh/default.nix
@@ -45,5 +45,6 @@ python3.pkgs.buildPythonApplication rec {
     homepage = "https://github.com/lovesegfault/beautysh";
     license = with licenses; [ asl20 ];
     maintainers = with maintainers; [ fab ];
+    mainProgram = "beautysh";
   };
 }
diff --git a/pkgs/development/tools/documentation/mdsh/default.nix b/pkgs/development/tools/documentation/mdsh/default.nix
index 85f19d899ed6..654721c50ea9 100644
--- a/pkgs/development/tools/documentation/mdsh/default.nix
+++ b/pkgs/development/tools/documentation/mdsh/default.nix
@@ -18,5 +18,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/zimbatm/mdsh";
     license = with licenses; [ mit ];
     maintainers = with maintainers; [ zimbatm ];
+    mainProgram = "mdsh";
   };
 }
diff --git a/pkgs/development/tools/dprint/default.nix b/pkgs/development/tools/dprint/default.nix
index ac973700bf3a..dc5104e9cd96 100644
--- a/pkgs/development/tools/dprint/default.nix
+++ b/pkgs/development/tools/dprint/default.nix
@@ -28,5 +28,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://dprint.dev";
     license = licenses.mit;
     maintainers = with maintainers; [ khushraj ];
+    mainProgram = "dprint";
   };
 }
diff --git a/pkgs/development/tools/fnlfmt/default.nix b/pkgs/development/tools/fnlfmt/default.nix
index 1c879c476370..14c783ce845b 100644
--- a/pkgs/development/tools/fnlfmt/default.nix
+++ b/pkgs/development/tools/fnlfmt/default.nix
@@ -37,5 +37,6 @@ stdenv.mkDerivation rec {
     license = licenses.lgpl3Plus;
     platforms = lua.meta.platforms;
     maintainers = with maintainers; [ chiroptical ];
+    mainProgram = "fnlfmt";
   };
 }
diff --git a/pkgs/development/tools/gofumpt/default.nix b/pkgs/development/tools/gofumpt/default.nix
index 9030a185d566..2e30bfefc61a 100644
--- a/pkgs/development/tools/gofumpt/default.nix
+++ b/pkgs/development/tools/gofumpt/default.nix
@@ -18,5 +18,6 @@ buildGoModule rec {
     homepage = "https://github.com/mvdan/gofumpt";
     license = licenses.bsd3;
     maintainers = with maintainers; [ rvolosatovs ];
+    mainProgram = "gofumpt";
   };
 }
diff --git a/pkgs/development/tools/google-java-format/default.nix b/pkgs/development/tools/google-java-format/default.nix
index 77515f203a2f..285d181fe095 100644
--- a/pkgs/development/tools/google-java-format/default.nix
+++ b/pkgs/development/tools/google-java-format/default.nix
@@ -42,5 +42,6 @@ stdenv.mkDerivation rec {
     license = licenses.asl20;
     maintainers = [ maintainers.emptyflask ];
     platforms = platforms.all;
+    mainProgram = "google-java-format";
   };
 }
diff --git a/pkgs/development/tools/rufo/default.nix b/pkgs/development/tools/rufo/default.nix
index d64173700e77..f198ce36d91b 100644
--- a/pkgs/development/tools/rufo/default.nix
+++ b/pkgs/development/tools/rufo/default.nix
@@ -12,5 +12,6 @@ bundlerApp {
     homepage = "https://github.com/ruby-formatter/rufo";
     license = licenses.mit;
     maintainers = with maintainers; [ andersk ];
+    mainProgram = "rufo";
   };
 }
diff --git a/pkgs/development/tools/scalafmt/default.nix b/pkgs/development/tools/scalafmt/default.nix
index 35783d255618..db65c8f3b79c 100644
--- a/pkgs/development/tools/scalafmt/default.nix
+++ b/pkgs/development/tools/scalafmt/default.nix
@@ -12,7 +12,7 @@ let
       cp $(< deps) $out/share/java/
     '';
     outputHashMode = "recursive";
-    outputHash     = "sha256-r4vv62H0AryjZb+34fVHvqvndipOYyf6XpQC9u8Dxso=";
+    outputHash = "sha256-r4vv62H0AryjZb+34fVHvqvndipOYyf6XpQC9u8Dxso=";
   };
 in
 stdenv.mkDerivation {
@@ -42,5 +42,6 @@ stdenv.mkDerivation {
     homepage = "http://scalameta.org/scalafmt";
     license = licenses.asl20;
     maintainers = [ maintainers.markus1189 ];
+    mainProgram = "scalafmt";
   };
 }
diff --git a/pkgs/development/tools/shellcheck/default.nix b/pkgs/development/tools/shellcheck/default.nix
index 1ce28d4832e5..8d04c357ce50 100644
--- a/pkgs/development/tools/shellcheck/default.nix
+++ b/pkgs/development/tools/shellcheck/default.nix
@@ -7,13 +7,14 @@ let
   # TODO: move to lib/ in separate PR
   overrideMeta = drv: overrideFn:
     let
-      drv' = if drv ? meta then drv else drv // { meta = {}; };
+      drv' = if drv ? meta then drv else drv // { meta = { }; };
       pos = (builtins.unsafeGetAttrPos "pname" drv');
       meta' = drv'.meta // {
         # copied from the mkDerivation code
         position = pos.file + ":" + toString pos.line;
       };
-    in drv' // { meta = meta' // overrideFn meta'; };
+    in
+    drv' // { meta = meta' // overrideFn meta'; };
 
   bin = haskell.lib.compose.justStaticExecutables ShellCheck;
 
@@ -38,14 +39,15 @@ let
       mkdir $out
     '';
 
-    passthru = ShellCheck.passthru or {} // {
+    passthru = ShellCheck.passthru or { } // {
       # pandoc takes long to build and documentation isn't needed for in nixpkgs usage
       unwrapped = ShellCheck;
     };
   };
 
 in
-  overrideMeta shellcheck (old: {
-    maintainers = with lib.maintainers; [ zowoq ];
-    outputsToInstall = [ "bin" "man" "doc" ];
-  })
+overrideMeta shellcheck (old: {
+  maintainers = with lib.maintainers; [ zowoq ];
+  mainProgram = "shellcheck";
+  outputsToInstall = [ "bin" "man" "doc" ];
+})
diff --git a/pkgs/development/tools/stylua/default.nix b/pkgs/development/tools/stylua/default.nix
index b2c919c8b673..bf201b5eb5b8 100644
--- a/pkgs/development/tools/stylua/default.nix
+++ b/pkgs/development/tools/stylua/default.nix
@@ -31,5 +31,6 @@ rustPlatform.buildRustPackage rec {
     changelog = "https://github.com/johnnymorganz/stylua/blob/v${version}/CHANGELOG.md";
     license = licenses.mpl20;
     maintainers = with maintainers; [ figsoda ];
+    mainProgram = "stylua";
   };
 }
diff --git a/pkgs/development/tools/taplo/default.nix b/pkgs/development/tools/taplo/default.nix
index 0d4d529299bf..43026331f5c7 100644
--- a/pkgs/development/tools/taplo/default.nix
+++ b/pkgs/development/tools/taplo/default.nix
@@ -27,5 +27,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://taplo.tamasfe.dev";
     license = licenses.mit;
     maintainers = with maintainers; [ figsoda ];
+    mainProgram = "taplo";
   };
 }
diff --git a/pkgs/development/tools/yamlfmt/default.nix b/pkgs/development/tools/yamlfmt/default.nix
index a2783ff0a23a..e1557101f160 100644
--- a/pkgs/development/tools/yamlfmt/default.nix
+++ b/pkgs/development/tools/yamlfmt/default.nix
@@ -20,5 +20,6 @@ buildGoModule rec {
     homepage = "https://github.com/google/yamlfmt";
     license = licenses.asl20;
     maintainers = with maintainers; [ sno2wman ];
+    mainProgram = "yamlfmt";
   };
 }
diff --git a/pkgs/development/tools/zprint/default.nix b/pkgs/development/tools/zprint/default.nix
index 4cceda481a3b..82997d70333a 100644
--- a/pkgs/development/tools/zprint/default.nix
+++ b/pkgs/development/tools/zprint/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildGraalvmNativeImage, fetchurl  }:
+{ lib, buildGraalvmNativeImage, fetchurl }:
 
 buildGraalvmNativeImage rec {
   pname = "zprint";
@@ -28,5 +28,6 @@ buildGraalvmNativeImage rec {
     homepage = "https://github.com/kkinnear/zprint";
     license = licenses.mit;
     maintainers = with maintainers; [ stelcodes ];
+    mainProgram = "zprint";
   };
 }
diff --git a/pkgs/tools/text/shfmt/default.nix b/pkgs/tools/text/shfmt/default.nix
index 3f672f23500f..eeeae662efc5 100644
--- a/pkgs/tools/text/shfmt/default.nix
+++ b/pkgs/tools/text/shfmt/default.nix
@@ -33,5 +33,6 @@ buildGoModule rec {
     '';
     license = licenses.bsd3;
     maintainers = with maintainers; [ zowoq SuperSandro2000 ];
+    mainProgram = "shfmt";
   };
 }