devkit/builder: replace layman with eselect-repository

- Setup: eselect-repository add + emaint sync instead of layman -f -a
- Remove: drop layman mkdir/make.conf/layman-updater setup block
- Sync: emerge --sync instead of layman -S

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

builder

@@ -578,11 +578,7 @@ if ( $remote_portdir ne "" ) {
     _system("git clone $remote_portdir /usr/portage");
 }
 
-_system("mkdir /var/lib/layman") if ( !-d "/var/lib/layman" );
-_system("touch /var/lib/layman/make.conf && layman-updater -R")
-    if ( !-e "/var/lib/layman/make.conf" );
-
-_system("echo 'y' | layman -f -a $_") for @overlays;
+_system("eselect repository add $_ git https://github.com/gentoo-mirror/$_.git && emaint sync -r $_") for @overlays;
 
 my $reponame = "LocalOverlay";
 
@@ -621,7 +617,7 @@ if ( $remote_overlay and $remote_overlay ne "" ) {
 if ( $remove_layman_overlay and $remove_layman_overlay ne "" ) {
     say "===== Removing overlays: $remove_layman_overlay =====";
 
-    _system("layman -d $_") for ( split( / /, $remove_layman_overlay ) );
+    _system("eselect repository disable $_ && emaint sync -r $_") for ( split( / /, $remove_layman_overlay ) );
 }
 if ( $remove_remote_overlay and $remove_remote_overlay ne "" ) {
     say "===== Removing overlays: $remove_remote_overlay =====";
@@ -635,7 +631,7 @@ portage_perms('/usr/portage');
 unless ( $skip_portage_sync == 1 ) {
 
     # sync portage and overlays
-    _system("layman -S");
+    _system("emerge --sync --quiet");
     if ( $portage_git_url ne "" and $portage_git_branch ne "" ) {
       fetch_portage_from_git( $portage_git_url, $portage_git_service,
         $portage_git_branch );

sabayon-brokenlinks

@@ -101,9 +101,6 @@ detect_libs_dir() {
       if [ -d "/usr/lib64" ] ; then
         libs="$libs /usr/lib64 /lib64"
       fi
-      if [ -d "/usr/lib" ] ; then
-        libs="$libs /usr/lib /lib"
-      fi
     else
       if [ -d "/usr/lib" ] ; then
         libs="/usr/lib /lib"

sabayondevkit-functions.sh

@@ -8,7 +8,7 @@ check_docker_requirements(){
   if [ "$(id -u)" != "0" ]; then
     groups | grep -q docker || echo "--> If you are not running the script as root, your user should be in the docker group to use it. (sudo gpasswd -a $USER docker)"
   fi
-  ps aux | grep -q '[d]ocker' || echo "--> Be sure to have the docker daemon running (sudo systemctl start docker) of configure it to run on boot (sudo systemctl enable docker). Trying to start it anyway" && systemctl start docker || true
+  ps aux | grep -q '[d]ocker' || echo "--> Be sure to have the docker daemon running (sudo systemctl start docker) or configure it to run on boot (sudo systemctl enable docker). Trying to start it anyway" && systemctl start docker || true
 }
 
 die() { echo "$@" 1>&2 ; exit 1; }