diff --git a/abr/APKBUILD b/abr/APKBUILD
index 08ba94c..3c3ffb6 100644
--- a/abr/APKBUILD
+++ b/abr/APKBUILD
@@ -1,6 +1,6 @@
 # Maintainer: psykose <alice@ayaya.dev>
 pkgname=abr
-pkgver=3
+pkgver=4
 pkgrel=0
 pkgdesc="abr~!"
 url="https://git.ddd.rip/ptrcnull/aports"
@@ -40,6 +40,6 @@ package() {
 }
 
 sha512sums="
-3e24e18734af45abce844bb7d14e325fc8b7661b21c045f0edd0abfebac3ecdb866322ef2d36a14a7f3c28d2730ee3a93eb859f74f69c4caf9e20a209d6ace2a  abr
+9b05f5dec556feb26079637f7a1b0fcde4233fbf6803377c67b29700e264b467617b86e696b1274ee4de6cdb850585453ef76983d92ce65846b6e9efa0c83330  abr
 71d8cb1e5e57ff739915fa4de1f5699afa60ab36e2e5219c4c366af5ceab24dc6ee55e738d29ca2b63dd5e387de7661594fc86bf2183d787932e75b4c03c6a9f  apkbuild-anitya
 "
diff --git a/abr/abr b/abr/abr
index c2b68db..d9becb3 100755
--- a/abr/abr
+++ b/abr/abr
@@ -33,6 +33,9 @@ while getopts "j:fmnsx" opt; do
       # also run checksum/checkapk
       full=1
       ;;
+   'h')
+      nofsynchack=1
+      ;;
    'm')
       # don't set LD_PRELOAD for another alloc
       # since i set this normally, this unexports it.
@@ -61,19 +64,29 @@ shift "$((OPTIND - 1))"
 
 # loop again to check if rootbld
 for arg; do
-   if eltest "$arg" =~ "rootbld" || [ -n "$nosccache" ]; then
-      # pointless in rootbld
-      # TODO: maybe we can mount something into rootbld without patches
-      :
-   else
-      extra="$extra sccache"
-      export RUSTC_WRAPPER=sccache
+   if eltest "$arg" =~ "rootbld"; then
+      rootbld=1
    fi
 done
 
+if [ -n "$rootbld" ]; then
+   if [ -z "$nofsynchack" ]; then
+      # in rootbld, should be safe to skip fsync
+      extra="$extra libeatmydata"
+      export LD_PRELOAD="$LD_PRELOAD /usr/lib/libeatmydata.so"
+   fi
+else
+   if [ -z "$nosccache" ]; then
+      # not rootbld use sccache
+      # TODO: maybe we can mount something into rootbld without patches
+      extra="$extra sccache"
+      export RUSTC_WRAPPER=sccache
+   fi
+fi
+
 if [ -z "$nomemhack" ]; then
    extra="$extra scudo-malloc"
-   export LD_PRELOAD="/usr/lib/libscudo.so"
+   export LD_PRELOAD="$LD_PRELOAD /usr/lib/libscudo.so"
 fi
 
 if [ -z "$nonice" ]; then