diff --git a/lib/mk/remote_rom_backend_nic_ip.mk b/lib/mk/remote_rom_backend_nic_ip.mk
index 5cbd77b..c1f8cf5 100644
--- a/lib/mk/remote_rom_backend_nic_ip.mk
+++ b/lib/mk/remote_rom_backend_nic_ip.mk
@@ -3,7 +3,7 @@
 
 SRC_CC += backend/nic_ip/backend.cc 
 
-LIBS   += base config net 
+LIBS   += base net
 
-# include less specific configuration
+# include less specificuration
 include $(REP_DIR)/lib/mk/remote_rom_backend.inc
diff --git a/run/fesrv.run b/run/fesrv.run
index 2230a62..c8fc954 100644
--- a/run/fesrv.run
+++ b/run/fesrv.run
@@ -13,9 +13,9 @@ create_boot_directory
 install_config {
 <config>
 	<parent-provides>
-		<service name="CAP"/>
 		<service name="LOG"/>
-		<service name="RM"/>
+		<service name="PD"/>
+		<service name="CPU"/>
 		<service name="SIGNAL"/>
 
 		<!-- some timer implementations need kernel info pages -->
@@ -29,22 +29,19 @@ install_config {
 	<default-route>
 		<any-service> <parent/> <any-child/> </any-service>
 	</default-route>
-
-
-       <start name="fesrv">
-                <resource name="RAM" quantum="10M"/>
+	<default caps="100"/>
+	<start name="fesrv">
+		<resource name="RAM" quantum="10M"/>
 		<config>
 			<fesrv image="riscv-image.elf" />
-		  
 			<libc stdout="/dev/log" stderr="/dev/log" >
 				<vfs>
 					<rom name="riscv-image.elf"/>
 				</vfs>
 			</libc>
 		</config>
-        </start>
-
-</config>}
+	</start>
+</config> }
 
 #
 # Boot image
diff --git a/run/jitterentropy_testu01.inc b/run/jitterentropy_testu01.inc
index 70ce9a1..70bb87a 100644
--- a/run/jitterentropy_testu01.inc
+++ b/run/jitterentropy_testu01.inc
@@ -25,7 +25,6 @@ set config {
 <config>
 	<default caps="128"/>
 	<parent-provides>
-		<service name="CAP"/>
 		<service name="CPU"/>
 		<service name="LOG"/>
 		<service name="PD"/>
@@ -36,6 +35,7 @@ set config {
 	<default-route>
 		<any-service> <parent/> <any-child/> </any-service>
 	</default-route>
+	<default caps="100"/>
 	<start name="timer">
 		<resource name="RAM" quantum="1M"/>
 		<provides> <service name="Timer"/> </provides>
diff --git a/src/app/fesrv/main.cc b/src/app/fesrv/main.cc
index 36a8a4c..4df2974 100644
--- a/src/app/fesrv/main.cc
+++ b/src/app/fesrv/main.cc
@@ -38,8 +38,9 @@
 
 #include "htif.h"
 
-#include <os/attached_io_mem_dataspace.h>
-#include <os/config.h>
+#include <base/attached_rom_dataspace.h>
+#include <base/attached_io_mem_dataspace.h>
+#include <libc/component.h>
 
 #include <vector>
 #include <cassert>
@@ -50,15 +51,15 @@
 class Htif_zedboard_genode : public htif_t
 {
 	public:
-		Htif_zedboard_genode( std::string image = "image.elf" ):
-			htif_t( std::vector<std::string>( { image } ) ),
-		        _io_mem_dataspace( DEV_PADDR, 2 * sizeof( uintptr_t ), true ),
-		        dev_vaddr( _io_mem_dataspace.local_addr<uintptr_t>() )
 
-		{
-			write_reg( 31, 0 ); // reset
-		}
+		Htif_zedboard_genode(Libc::Env & env, std::string image = "image.elf")
+		: htif_t( std::vector<std::string>( { image } ) ),
+		  _io_mem_dataspace(env, DEV_PADDR, 2 * sizeof( uintptr_t ), true ),
+		  dev_vaddr( _io_mem_dataspace.local_addr<uintptr_t>() ) {
+			write_reg( 31, 0 ); /* reset */ }
+
 	protected:
+
 		ssize_t read( void *buf, size_t max_size )
 		{
 			uint32_t *x = ( uint32_t * )buf;
@@ -67,75 +68,68 @@ class Htif_zedboard_genode : public htif_t
 			uintptr_t c = read_reg( 0 );
 			uint32_t count = 0;
 
-			if ( c > 0 )
-			{
-				for ( count=0; count<c && count*sizeof( *x )<max_size; count++ )
-				{
-					x[count] = read_reg( 1 );
-				}
+			if ( c > 0 ) {
+				for ( count=0; count<c && count*sizeof( *x )<max_size; count++ ) {
+					x[count] = read_reg( 1 ); }
 			}
 
 			return count*sizeof( *x );
 		}
+
 		ssize_t write( const void *buf, size_t size )
 		{
 			const uint32_t *x = ( const uint32_t * )buf;
 			assert( size >= sizeof( *x ) );
 
-			for ( uint32_t i = 0; i < size/sizeof( *x ); i++ )
-			{
-				write_reg( 0, x[i] );
-			}
+			for ( uint32_t i = 0; i < size/sizeof( *x ); i++ ) {
+				write_reg( 0, x[i] ); }
 
 			return size;
 		}
 
-		size_t chunk_max_size() { return 64; }
-		size_t chunk_align() { return 64; }
-		uint32_t mem_mb() { return 256; }
-		uint32_t num_cores() { return 1; }
+		size_t   chunk_max_size() { return 64;  }
+		size_t   chunk_align()    { return 64;  }
+		uint32_t mem_mb()         { return 256; }
+		uint32_t num_cores()      { return 1;   }
 
 	private:
+
 		Genode::Attached_io_mem_dataspace _io_mem_dataspace;
 		volatile uintptr_t *dev_vaddr;
 
 		const static uintptr_t DEV_PADDR = 0x43C00000;
 };
 
-static const std::string image_name()
+
+static const std::string image_name(Libc::Env & env)
 {
 	static const size_t LEN = 128;
 	char buf[LEN];
 	Genode::memset( buf, 0, LEN );
 
-	try
-	{
-		Genode::config()->xml_node().sub_node( "fesrv" ).attribute( "image" ).value(
-		    buf, LEN - 1 );
-	}
-	catch ( ... )
-	{
+	try {
+		Genode::Attached_rom_dataspace config(env, "config");
+		config.xml().sub_node( "fesrv" ).attribute( "image" ).value(buf, LEN - 1 );
+	} catch ( ... ) {
 		throw std::runtime_error( "elf-image not configured" );
 	}
 
 	return std::string( buf );
 }
 
-int main()
+
+void Libc::Component::construct(Libc::Env & env)
 {
-	try
-	{
-		auto image = image_name();
-		Htif_zedboard_genode htif( image );
-		Genode::log( "Initialized Htif_zedboard with ", image.c_str() );
-		htif.run();
-	}
-	catch ( const std::runtime_error &e )
-	{
-		Genode::error( "Caught runtime error: ", e.what() );
-	}
-	catch ( ... )
-	{
-		Genode::error( "Unknown error occured" );
-	}
+	Libc::with_libc([&] () {
+		try {
+			std::string image = image_name(env);
+			Htif_zedboard_genode htif(env, image);
+			Genode::log( "Initialized Htif_zedboard with ", image.c_str() );
+			htif.run();
+		} catch ( const std::runtime_error &e ) {
+			Genode::error( "Caught runtime error: ", e.what() );
+		} catch ( ... ) {
+			Genode::error( "Unknown error occured" );
+		}
+	});
 }
diff --git a/src/app/fesrv/target.mk b/src/app/fesrv/target.mk
index ba72acc..f2fd5c4 100644
--- a/src/app/fesrv/target.mk
+++ b/src/app/fesrv/target.mk
@@ -19,7 +19,7 @@ SRC_CC = main.cc                 \
          term.cc
 
 TARGET   = fesrv
-LIBS     = stdcxx posix
+LIBS     = stdcxx libc
 INC_DIR += $(FESRV_SRC)
 
 # Some defines to keep the fesrv compilation process happy
diff --git a/src/lib/sqlite/genode_sqlite.cc b/src/lib/sqlite/genode_sqlite.cc
index df31291..9b52ea7 100644
--- a/src/lib/sqlite/genode_sqlite.cc
+++ b/src/lib/sqlite/genode_sqlite.cc
@@ -24,7 +24,7 @@
 #include <rtc_session/connection.h>
 #include <timer_session/connection.h>
 #include <os/path.h>
-#include <os/config.h>
+#include <base/attached_rom_dataspace.h>
 #include <base/env.h>
 #include <base/printf.h>
 #include <util/string.h>
@@ -525,15 +525,16 @@ int sqlite3_os_init(void)
 		return SQLITE_ERROR;
 	}
 
+	Genode::Attached_rom_dataspace config("config");
 	Vfs::Dir_file_system *genode_vfs = nullptr;
 	try {
-		Xml_node node = Genode::config()->xml_node().sub_node("sqlite").sub_node("vfs");
+		Xml_node node = config.xml().sub_node("sqlite").sub_node("vfs");
 		genode_vfs = new (Genode::env()->heap())
 			Vfs::Dir_file_system(node, Vfs::global_file_system_factory());
 
 	} catch (Genode::Xml_node::Nonexistent_sub_node) {
 		try {
-			Xml_node node = Genode::config()->xml_node().sub_node("vfs");
+			Xml_node node = config.xml().sub_node("vfs");
 			genode_vfs = new (Genode::env()->heap())
 				Vfs::Dir_file_system(node, Vfs::global_file_system_factory());
 			PWRN("additional VFS created for SQLite");
diff --git a/src/lib/testu01/genode_gdef.cc b/src/lib/testu01/genode_gdef.cc
index 04b1c7d..880d46b 100644
--- a/src/lib/testu01/genode_gdef.cc
+++ b/src/lib/testu01/genode_gdef.cc
@@ -1,3 +1,5 @@
+#include <base/attached_rom_dataspace.h>
+
 extern "C" {
 
 #include <stdio.h>
@@ -5,9 +7,11 @@ extern "C" {
 
 void gdef_GetHostName (char machine[], int n)
 {
-	strncpy(machine, "genode", n);
+	Genode::Attached_rom_dataspace config("config");
+	try { config.xml().attribute("hostname").value(machine, n); }
+	catch (...) { Genode::strncpy(machine, "genode", n); }
 }
 
 void gdef_WriteHostName (void) { }
 
-}
\ No newline at end of file
+}
diff --git a/src/proxy/remote_rom/client/target.inc b/src/proxy/remote_rom/client/target.inc
index eaf6f3d..2a9905a 100644
--- a/src/proxy/remote_rom/client/target.inc
+++ b/src/proxy/remote_rom/client/target.inc
@@ -1,7 +1,7 @@
 SRC_CC = main.cc 
 TARGET = remote_rom_client
 
-LIBS   += base config
+LIBS   += base
 
 INC_DIR += $(REP_DIR)/include/remote_rom
 
diff --git a/src/proxy/remote_rom/server/target.inc b/src/proxy/remote_rom/server/target.inc
index 36f30a8..0af27a5 100644
--- a/src/proxy/remote_rom/server/target.inc
+++ b/src/proxy/remote_rom/server/target.inc
@@ -1,7 +1,7 @@
 SRC_CC = main.cc 
 TARGET = remote_rom_server
 
-LIBS   += base config 
+LIBS   += base
 
 INC_DIR += $(REP_DIR)/include/remote_rom