diff --git a/local/AGENTS.md b/local/AGENTS.md
index 32dec2faf4..4412a2c36f 100644
--- a/local/AGENTS.md
+++ b/local/AGENTS.md
@@ -517,6 +517,21 @@ If we can fetch fresh upstream sources tomorrow, provision sources from `sources
 If a change exists only inside an upstream-owned `recipes/*/source/` tree, then it is **not yet
 preserved**, even if the current build happens to pass.
 
+### Local fork recipe directories must not carry patch files
+
+When a recipe's `[source]` uses `path = ".../local/sources/<component>/"`, the local fork
+**is** the patch. The recipe directory (`recipes/core/<component>/`) **MUST NOT** contain
+`.patch` files or symlinks. Patch files from the pre-fork era must be applied as commits to
+the `submodule/<component>` branch (or, if kept for historical reference, archived under
+`local/docs/archived/` or `local/patches/archived/` and never symlinked into a recipe
+directory). Leaving patch files in a `path`-source recipe directory creates the false
+impression that the build system applies them, which leads to exactly the kind of duplicate
+fix work we just saw with `sem_open`.
+
+The cookbook **does not apply patches for `path` sources**. If a component needs patches,
+it must use a `git` source pointing at a `submodule/<component>` branch, or the patches
+must be merged into the local fork branch.
+
 ### GOLDEN RULE — Red Bear adapts to upstream, never the reverse
 
 **When upstream Redox changes a dependency version, API, or ABI, Red Bear adapts.**
diff --git a/local/recipes/system/driver-manager/source/Cargo.toml b/local/recipes/system/driver-manager/source/Cargo.toml
index 58077f495f..e00c8ef3e4 100644
--- a/local/recipes/system/driver-manager/source/Cargo.toml
+++ b/local/recipes/system/driver-manager/source/Cargo.toml
@@ -13,6 +13,7 @@ redox-driver-core = { path = "../../../drivers/redox-driver-core/source" }
 redox-driver-pci = { path = "../../../drivers/redox-driver-pci/source" }
 pcid_interface = { path = "../../../../../local/sources/base/drivers/pcid", package = "pcid" }
 redox-scheme = { path = "../../../../../local/sources/redox-scheme" }
+syscall = { package = "redox_syscall", path = "../../../../../local/sources/syscall", features = ["std"] }
 log = "0.4"
 toml = "0.8"
 serde = { version = "1", features = ["derive"] }
diff --git a/local/sources/bootloader b/local/sources/bootloader
index e7bc6a56dc..6c3c312819 160000
--- a/local/sources/bootloader
+++ b/local/sources/bootloader
@@ -1 +1 @@
-Subproject commit e7bc6a56dcc7222b8349d2fbe0e5d422b4c71920
+Subproject commit 6c3c3128198f0fbac7364b03bb79dddebc45be3c
diff --git a/local/sources/installer b/local/sources/installer
index e604868baf..d90f84883e 160000
--- a/local/sources/installer
+++ b/local/sources/installer
@@ -1 +1 @@
-Subproject commit e604868baf05bbcc7615b3fef4523c5055db6b4c
+Subproject commit d90f84883e410233749b620ba6e7f04d989eaed7
diff --git a/local/sources/kernel b/local/sources/kernel
index 71f189ba04..1b22d324ab 160000
--- a/local/sources/kernel
+++ b/local/sources/kernel
@@ -1 +1 @@
-Subproject commit 71f189ba047ee6976ed71a7343409f46017109cd
+Subproject commit 1b22d324abd8b5b4767a168c8f8789ef11d5e892
diff --git a/local/sources/libredox b/local/sources/libredox
index 4a578129b2..d6fa513ca7 160000
--- a/local/sources/libredox
+++ b/local/sources/libredox
@@ -1 +1 @@
-Subproject commit 4a578129b2e5f6d676b5404f0343cf9d599b1292
+Subproject commit d6fa513ca7c46e0d2d83ad0f397ec4e937d22b5f
diff --git a/local/sources/redoxfs b/local/sources/redoxfs
index f29cbc3dfe..e6be9134d8 160000
--- a/local/sources/redoxfs
+++ b/local/sources/redoxfs
@@ -1 +1 @@
-Subproject commit f29cbc3dfecf81d5bf57eef6274a92ecd3f61ad9
+Subproject commit e6be9134d8395f9ec6dcd46cb972c3c48aabe532
diff --git a/local/sources/relibc b/local/sources/relibc
index c81fe5fc98..3e4dbfbe7a 160000
--- a/local/sources/relibc
+++ b/local/sources/relibc
@@ -1 +1 @@
-Subproject commit c81fe5fc98090789af1d11823010cd627d854e31
+Subproject commit 3e4dbfbe7a0106239812dea5680968d903a46418
diff --git a/local/sources/userutils b/local/sources/userutils
index e5c076b0ea..e913bacaa3 160000
--- a/local/sources/userutils
+++ b/local/sources/userutils
@@ -1 +1 @@
-Subproject commit e5c076b0ea6654c9ad16df7107921cea8bc90836
+Subproject commit e913bacaa33910a6ec3347cfb350d97c919a19e4