diff --git a/config/Config-build.in b/config/Config-build.in
index 9b8e4b2283..e0889fcccf 100644
--- a/config/Config-build.in
+++ b/config/Config-build.in
@@ -9,7 +9,7 @@ menu "Global build settings"
 
 	config ALL_NONSHARED
 		bool "Select all target specific packages by default"
-		default ALL
+		default ALL || BUILDBOT
 
 	config ALL_KMODS
 		bool "Select all kernel module packages by default"
@@ -19,6 +19,16 @@ menu "Global build settings"
 		bool "Select all userspace packages by default"
 		default n
 
+	config BUILDBOT
+		bool "Set build defaults for automatic builds (e.g. via buildbot)"
+		default n
+		help
+		  This option changes several defaults to be more suitable for
+		  automatic builds. This includes the following changes:
+		  - Deleting build directories after compiling (to save space)
+		  - Enabling per-device rootfs support
+		  ...
+
 	config SIGNED_PACKAGES
 		bool "Cryptographically signed package lists"
 		default y
@@ -61,7 +71,7 @@ menu "Global build settings"
 		bool
 		prompt "Collect kernel debug information"
 		select KERNEL_DEBUG_INFO
-		default n
+		default BUILDBOT
 		help
 		  This collects debugging symbols from the kernel and all compiled modules.
 		  Useful for release builds, so that kernel issues can be debugged offline
diff --git a/package/base-files/image-config.in b/package/base-files/image-config.in
index b43d7c78cd..87d2ac6c54 100644
--- a/package/base-files/image-config.in
+++ b/package/base-files/image-config.in
@@ -286,7 +286,7 @@ menuconfig PER_FEED_REPO
 
 	config PER_FEED_REPO_ADD_COMMENTED
 		bool "Comment out not enabled feeds"
-		default y
+		default !BUILDBOT
 		depends on PER_FEED_REPO && PER_FEED_REPO_ADD_DISABLED
 		help
 		  Add not enabled feeds as commented out source lines to opkg.conf.
diff --git a/scripts/target-metadata.pl b/scripts/target-metadata.pl
index 7f7dc6d4ee..31de3c74c8 100755
--- a/scripts/target-metadata.pl
+++ b/scripts/target-metadata.pl
@@ -203,13 +203,14 @@ endchoice
 
 choice
 	prompt "Target Profile"
+	default TARGET_MULTI_PROFILE if BUILDBOT
 
 EOF
 	foreach my $target (@target) {
 		my $profile = $target->{profiles}->[0];
 		$profile or next;
 		print <<EOF;
-	default TARGET_$target->{conf}_$profile->{id} if TARGET_$target->{conf}
+	default TARGET_$target->{conf}_$profile->{id} if TARGET_$target->{conf} && !BUILDBOT
 EOF
 	}
 
@@ -256,9 +257,11 @@ menu "Target Devices"
 
 	config TARGET_ALL_PROFILES
 		bool "Enable all profiles by default"
+		default BUILDBOT
 
 	config TARGET_PER_DEVICE_ROOTFS
 		bool "Use a per-device root filesystem that adds profile packages"
+		default BUILDBOT
 		help
 		When disabled, all device packages from all selected devices
 		will be included in all images by default. (Marked as <*>) You will
diff --git a/target/imagebuilder/Config.in b/target/imagebuilder/Config.in
index b54eb5b4ff..49bb741f73 100644
--- a/target/imagebuilder/Config.in
+++ b/target/imagebuilder/Config.in
@@ -1,6 +1,7 @@
 config IB
 	bool "Build the LEDE Image Builder"
 	depends on !EXTERNAL_TOOLCHAIN
+	default BUILDBOT
 	help
 	  This is essentially a stripped-down version of the buildroot
 	  with precompiled packages, kernel image and image building tools.
@@ -8,7 +9,7 @@ config IB
 
 config IB_STANDALONE
 	bool "Include package repositories"
-	default y
+	default y if !BUILDBOT
 	depends on IB
 	help
 	  Disabling this option will cause the ImageBuilder to embed only
diff --git a/target/sdk/Config.in b/target/sdk/Config.in
index df2532985e..095759d064 100644
--- a/target/sdk/Config.in
+++ b/target/sdk/Config.in
@@ -1,6 +1,7 @@
 config SDK
 	bool "Build the LEDE SDK"
 	depends on !EXTERNAL_TOOLCHAIN
+	default BUILDBOT
 	help
 	  This is essentially a stripped-down version of the buildroot
 	  with a precompiled toolchain. It can be used to develop and