diff --git a/scripts/_common.sh b/scripts/_common.sh
index 038e646..9b05fdd 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -80,130 +80,5 @@ set_permission() {
     chmod u=rwX,g=rX,o= "/var/log/$app"
 }
 
-# Download, check integrity, uncompress and patch the source from app.src
-#
-# The file conf/app.src need to contains:
-#
-# SOURCE_URL=Address to download the app archive
-# SOURCE_SUM=Control sum
-# # (Optional) Program to check the integrity (sha256sum, md5sum...)
-# # default: sha256
-# SOURCE_SUM_PRG=sha256
-# # (Optional) Archive format
-# # default: tar.gz
-# SOURCE_FORMAT=tar.gz
-# # (Optional) Put false if sources are directly in the archive root
-# # default: true
-# SOURCE_IN_SUBDIR=false
-# # (Optionnal) Name of the local archive (offline setup support)
-# # default: ${src_id}.${src_format}
-# SOURCE_FILENAME=example.tar.gz 
-# # (Optional) If it set as false don't extract the source.
-# # (Useful to get a debian package or a python wheel.)
-# # default: true
-# SOURCE_EXTRACT=(true|false)
-#
-# Details:
-# This helper downloads sources from SOURCE_URL if there is no local source
-# archive in /opt/yunohost-apps-src/APP_ID/SOURCE_FILENAME
-#
-# Next, it checks the integrity with "SOURCE_SUM_PRG -c --status" command.
-#
-# If it's ok, the source archive will be uncompressed in $dest_dir. If the
-# SOURCE_IN_SUBDIR is true, the first level directory of the archive will be
-# removed.
-#
-# Finally, patches named sources/patches/${src_id}-*.patch and extra files in
-# sources/extra_files/$src_id will be applied to dest_dir
-#
-#
-# usage: ynh_setup_source dest_dir [source_id]
-# | arg: dest_dir  - Directory where to setup sources
-# | arg: source_id - Name of the app, if the package contains more than one app
-ynh_setup_source () {
-    local dest_dir=$1
-    local src_id=${2:-app} # If the argument is not given, source_id equals "app"
-
-    # Load value from configuration file (see above for a small doc about this file
-    # format)
-    local src_url=$(grep 'SOURCE_URL=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_sum=$(grep 'SOURCE_SUM=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_sumprg=$(grep 'SOURCE_SUM_PRG=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_format=$(grep 'SOURCE_FORMAT=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_extract=$(grep 'SOURCE_EXTRACT=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_in_subdir=$(grep 'SOURCE_IN_SUBDIR=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    local src_filename=$(grep 'SOURCE_FILENAME=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-
-    # Default value
-    src_sumprg=${src_sumprg:-sha256sum}
-    src_in_subdir=${src_in_subdir:-true}
-    src_format=${src_format:-tar.gz}
-    src_format=$(echo "$src_format" | tr '[:upper:]' '[:lower:]')
-    src_extract=${src_extract:-true}
-    if [ "$src_filename" = "" ] ; then
-        src_filename="${src_id}.${src_format}"
-    fi
-    local local_src="/opt/yunohost-apps-src/${YNH_APP_ID}/${src_filename}"
-
-    if test -e "$local_src"
-    then    # Use the local source file if it is present
-        cp $local_src $src_filename
-    else    # If not, download the source
-        wget -nv -O $src_filename $src_url
-    fi
-
-    # Check the control sum
-    echo "${src_sum} ${src_filename}" | ${src_sumprg} -c --status \
-        || ynh_die "Corrupt source"
-
-    # Extract source into the app dir
-    mkdir -p "$dest_dir"
-    
-    if ! "$src_extract"
-    then
-        mv $src_filename $dest_dir
-    elif [ "$src_format" = "zip" ]
-    then 
-        # Zip format
-        # Using of a temp directory, because unzip doesn't manage --strip-components
-        if $src_in_subdir ; then
-            local tmp_dir=$(mktemp -d)
-            unzip -quo $src_filename -d "$tmp_dir"
-            cp -a $tmp_dir/*/. "$dest_dir"
-            ynh_secure_remove "$tmp_dir"
-        else
-            unzip -quo $src_filename -d "$dest_dir"
-        fi
-    else
-        local strip=""
-        if $src_in_subdir ; then
-            strip="--strip-components 1"
-        fi
-        if [[ "$src_format" =~ ^tar.gz|tar.bz2|tar.xz$ ]] ; then
-            tar -xf $src_filename -C "$dest_dir" $strip
-        fi
-        if [[ "$src_format" = "bin" ]] ; then
-            mv $src_filename $app
-        else
-            ynh_die "Archive format unrecognized."
-        fi
-    fi
-
-    # Apply patches
-    if (( $(find $YNH_CWD/../sources/patches/ -type f -name "${src_id}-*.patch" 2> /dev/null | wc -l) > "0" )); then
-        local old_dir=$(pwd)
-        (cd "$dest_dir" \
-            && for p in $YNH_CWD/../sources/patches/${src_id}-*.patch; do \
-                patch -p1 < $p; done) \
-            || ynh_die "Unable to apply patches"
-        cd $old_dir
-    fi
-
-    # Add supplementary files
-    if test -e "$YNH_CWD/../sources/extra_files/${src_id}"; then
-        cp -a $YNH_CWD/../sources/extra_files/$src_id/. "$dest_dir"
-    fi
-}
-