diff --git a/web/app/uploads/lol.fish b/web/app/uploads/lol.fish
new file mode 100644
index 00000000..d78b21a0
--- /dev/null
+++ b/web/app/uploads/lol.fish
@@ -0,0 +1,69 @@
+#!/usr/bin/fish
+
+set -f jpg $argv
+echo $jpg
+
+set -f avif (path change-extension 'avif' "$jpg")
+set -f jxl (path change-extension 'jxl' "$jpg")
+set -f png (path change-extension 'png' "$jpg")
+
+set -f dimensions (gm identify -format "%w-%h" $jpg)
+set -f dimensions (string split "-" $dimensions)
+
+if test $dimensions[1] -eq 1920 || test $dimensions[2] -eq 1920
+    set -f a_bonnes_dimensions true
+else
+    set -f a_bonnes_dimensions false
+end
+
+if test -e $avif && test -e $jxl
+    echo -e "\tAll there."
+    return
+end
+
+gm convert "$jpg" -resize 1920x1920\> "$png" >/dev/null
+
+if ! test -e $jxl
+    # Si les dimensions ne sont pas bonnes, convertis l'image PNG en JPEGXL puis reconstruis une image JPEG.
+    # C'est une forme de redimensionnement lossless.
+    if test $a_bonnes_dimensions = false
+        cjxl \
+            --allow_jpeg_reconstruction=1 \
+            --brotli_effort=11 \
+            --container=1 \
+            --effort=9 \
+            --lossless_jpeg=1 \
+            --num_threads=-1 \
+            --progressive \
+            $png $jxl &>/dev/null
+
+        djxl \
+            --num_threads=-1 \
+            $jxl $jpg &>/dev/null
+    end
+
+    cjxl \
+        --allow_jpeg_reconstruction=0 \
+        --brotli_effort=11 \
+        --container=1 \
+        --effort=10 \
+        --quality=70 \
+        --lossless_jpeg=0 \
+        --num_threads=-1 \
+        --progressive \
+        $png $jxl &>/dev/null
+    echo -e "\t$jxl"
+
+    set -f avif (path change-extension 'avif' "$jpg")
+    if ! test -e $avif
+        avifenc \
+            -q 70 \
+            -s 0 \
+            -c aom \
+            -y 420 \
+            "$png" "$avif" &>/dev/null
+        echo -e "\t$avif"
+    end
+
+    rm $png
+end
diff --git a/web/app/uploads/script.fish b/web/app/uploads/script.fish
index 9a064701..76bfcf3e 100644
Binary files a/web/app/uploads/script.fish and b/web/app/uploads/script.fish differ