diff --git a/aliases/carapace.elv b/aliases/carapace.elv
index 7cd7b3e..f13866e 100644
--- a/aliases/carapace.elv
+++ b/aliases/carapace.elv
@@ -1,4 +1,4 @@
-edit:add-var updatecarapace~ {||
+edit:add-var maj-carapace~ {||
   use path
   var cur = (pwd)
   var wd  = $E:HOME/Documents/OtherGo/github.com/rsteube/carapace-bin
diff --git a/aliases/ffmpeg.elv b/aliases/ffmpeg.elv
new file mode 100644
index 0000000..72542a0
--- /dev/null
+++ b/aliases/ffmpeg.elv
@@ -0,0 +1,14 @@
+edit:add-var vtt2srt~ {|@argv|
+  use re
+  use str
+  var cnv = {|vtt|
+    if (not (re:match '.*\.vtt$' $vtt)) {
+      echo $vtt 'n’est pas un fichier vtt'
+    } else {
+      var srt = (str:trim-suffix $vtt 'vtt')'srt'
+      e:ffmpeg -i $vtt $srt
+    }
+  }
+
+  each $cnv $argv
+}
diff --git a/aliases/symfony.elv b/aliases/symfony.elv
new file mode 100644
index 0000000..a62c30c
--- /dev/null
+++ b/aliases/symfony.elv
@@ -0,0 +1,66 @@
+edit:add-var maj-symfony~ {|@argv|
+  var repo  = symfony-cli/symfony-cli
+  var bin   = /usr/local/bin/symfony
+  var tmp   = (mktemp -u /tmp/symfony.XXXXXXXX)
+  var cdir  = (pwd)
+  
+  fn lastVersion {||
+    try {
+      curl -s (printf 'https://api.github.com/repos/%s/releases/latest' $repo) | grep 'tag_name' | awk '{print substr($2, 3, length($2)-4) }'
+     } except e {
+       fail 'Impossible de récupérer les infos sur la dernière version'
+     }
+  }
+
+  fn currentVersion {||
+    $bin -V --no-ansi | awk '{print $4}'
+  }
+
+  fn download {|version|
+    mkdir $tmp
+    cd $tmp
+    try {
+      #wget -O symfony.tar.gz (printf 'https://github.com/%s/archive/refs/tags/v%s.tar.gz' $repo $version)
+      wget -O symfony.tar.gz (printf 'https://github.com/%s/releases/download/v%s/symfony-cli_linux_amd64.tar.gz' $repo $version)
+      tar -xzf symfony.tar.gz
+    } except e {
+      cd $cdir
+      rm -rf $tmp
+      fail (printf 'Impossible de récupérer symfony %s' $version)
+    }
+  }
+
+  fn install {|version|
+    #cd (printf '%s/symfony-cli-%s' $tmp $version)
+    #go mod vendor
+    #go build -mod=vendor -o symfony main.go
+    cd $tmp
+    cp -fa $bin{,.old}
+    cp -fa symfony $bin
+  }
+
+  fn info {|msg|
+    echo (styled $msg bold yellow)
+  }
+
+  fn error {|msg|
+    echo (styled $msg bold red)
+  }
+
+  var cv = (currentVersion)
+  var lv = (lastVersion)
+
+  if (eq $cv $lv) {
+    info (printf 'Vous avez la dernière version de symfony (%s)' $cv)
+    return
+  }
+
+  info (printf 'Récupération de symfony %s' $lv)
+  download $lv
+
+  info (printf 'Mise à jour de symfony %s vers %s' $cv $lv)
+  install $lv
+
+  cd $cdir
+  rm -rf $tmp
+}