diff --git a/pkgs/by-name/mo/movim/package.nix b/pkgs/by-name/mo/movim/package.nix
index 600af837b107..0fb4851aa109 100644
--- a/pkgs/by-name/mo/movim/package.nix
+++ b/pkgs/by-name/mo/movim/package.nix
@@ -1,5 +1,6 @@
 { lib
 , fetchFromGitHub
+, dash
 , php
 , phpCfg ? null
 , withPgsql ? true # “strongly recommended” according to docs
@@ -34,10 +35,24 @@ php.buildComposerProject (finalAttrs: {
 
   vendorHash = "sha256-PBoJbVuF0Qy7nNlL4yx446ivlZpPYNIai78yC0wWkCM=";
 
+  postInstall = ''
+    mkdir -p $out/bin
+    echo "#!${lib.getExe dash}" > $out/bin/movim
+    echo "${lib.getExe finalAttrs.php} $out/share/php/${finalAttrs.pname}/daemon.php \"\$@\"" >> $out/bin/movim
+    chmod +x $out/bin/movim
+
+    mkdir -p $out/share/{bash-completion/completion,fish/vendor_completions.d,zsh/site-functions}
+    $out/bin/movim completion bash | sed "s/daemon.php/movim/g" > $out/share/bash-completion/completion/movim.bash
+    $out/bin/movim completion fish | sed "s/daemon.php/movim/g" > $out/share/fish/vendor_completions.d/movim.fish
+    $out/bin/movim completion zsh | sed "s/daemon.php/movim/g" > $out/share/zsh/site-functions/_movim
+    chmod +x $out/share/{bash-completion/completion/movim.bash,fish/vendor_completions.d/movim.fish,zsh/site-functions/_movim}
+  '';
+
   meta = {
     description = "a federated blogging & chat platform that acts as a web front end for the XMPP protocol";
     homepage = "https://movim.eu";
     license = lib.licenses.agpl3Plus;
     maintainers = with lib.maintainers; [ toastal ];
+    mainProgram = "movim";
   };
 })