diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index be5a00ec3..000000000
--- a/.gitignore
+++ /dev/null
@@ -1,17 +0,0 @@
-*~
-*.orig
-*.swp
-*.rej
-
-/build
-/contrib
-/depot
-/public
-/repos/world
-##### TUP GITIGNORE #####
-##### Lines below automatically generated by Tup.
-##### Do not edit.
-.tup
-/.gitignore
-/dev
-/out
diff --git a/Tuprules.tup b/Tuprules.tup
index 3531f0578..6e3bff944 100644
--- a/Tuprules.tup
+++ b/Tuprules.tup
@@ -95,35 +95,6 @@ export STRIP
 
 !ln = |> ln -s %f %o |>
 
-&LD_SCRIPT_SO = repos/base/src/ld/genode_rel.ld
-
-ifeq (@(TUP_ARCH),x86_64)
-	ASM_SYM_DEPENDENCY = movq \1@GOTPCREL(%rip), %rax
-else
-	ASM_SYM_DEPENDENCY = .long \1
-endif
-
-!abi_stub = |> ^ STUB %o^\
-	sed \
-		-e "s/^\(\w\+\) D \(\w\+\)\$/.data; .global \1; .type \1,%%object; .size \1,\2; \1:/" \
-		-e "s/^\(\w\+\) V/.data; .weak \1; .type \1,%%object; \1:/" \
-		-e "s/^\(\w\+\) T/.text; .global \1; .type \1,%%function; \1:/" \
-		-e "s/^\(\w\+\) R \(\w\+\)\$/.section .rodata; .global \1; .type \1,%%object; .size \1,\2; \1:/" \
-		-e "s/^\(\w\+\) W/.text; .weak \1; .type \1,%%function; \1:/" \
-		-e "s/^\(\w\+\) B \(\w\+\)\$/.bss; .global \1; .type \1,%%object; .size \1,\2; \1:/" \
-		-e "s/^\(\w\+\) U/.text; .global \1; $(ASM_SYM_DEPENDENCY)/" \
-		%f \
-	| $(CC) -x assembler -c - -o tmp.o; \
-	$(LD) -o %o \
-		-shared \
-		-T &(LD_SCRIPT_SO) \
-		tmp.o; \
-	rm tmp.o; \
-|> $(DEV_DIR)/lib/%B.lib.so $(GENODE_DIR)/<lib>
-
-BASE_DIR = $(GENODE_DIR)/repos/base
-&BASE_DIR = repos/base
-
 !incbin = |> ^ incbin %f^ \
 	export SYM=_binary_`echo %f | sed 's/\./_/g'`; \
 	echo ".global ${SYM}_start, ${SYM}_end; .data; .align 4; ${SYM}_start:; .incbin \"%f\"; ${SYM}_end:" \
diff --git a/repos/Tuprules.tup b/repos/Tuprules.tup
new file mode 100644
index 000000000..82aa458b2
--- /dev/null
+++ b/repos/Tuprules.tup
@@ -0,0 +1,31 @@
+# Tup rules that are local to this Git repo and
+# should not be shared with other projects.
+
+&LD_SCRIPT_SO = base/src/ld/genode_rel.ld
+
+ifeq (@(TUP_ARCH),x86_64)
+	ASM_SYM_DEPENDENCY = movq \1@GOTPCREL(%rip), %rax
+else
+	ASM_SYM_DEPENDENCY = .long \1
+endif
+
+!abi_stub = |> ^ STUB %o^\
+	sed \
+		-e "s/^\(\w\+\) D \(\w\+\)\$/.data; .global \1; .type \1,%%object; .size \1,\2; \1:/" \
+		-e "s/^\(\w\+\) V/.data; .weak \1; .type \1,%%object; \1:/" \
+		-e "s/^\(\w\+\) T/.text; .global \1; .type \1,%%function; \1:/" \
+		-e "s/^\(\w\+\) R \(\w\+\)\$/.section .rodata; .global \1; .type \1,%%object; .size \1,\2; \1:/" \
+		-e "s/^\(\w\+\) W/.text; .weak \1; .type \1,%%function; \1:/" \
+		-e "s/^\(\w\+\) B \(\w\+\)\$/.bss; .global \1; .type \1,%%object; .size \1,\2; \1:/" \
+		-e "s/^\(\w\+\) U/.text; .global \1; $(ASM_SYM_DEPENDENCY)/" \
+		%f \
+	| $(CC) -x assembler -c - -o tmp.o; \
+	$(LD) -o %o \
+		-shared \
+		-T &(LD_SCRIPT_SO) \
+		tmp.o; \
+	rm tmp.o; \
+|> $(DEV_DIR)/lib/%B.lib.so $(GENODE_DIR)/<lib>
+
+BASE_DIR = $(GENODE_DIR)/repos/base
+&BASE_DIR = base