diff --git a/README.md b/README.md
index b0727e5..c6327b1 100644
--- a/README.md
+++ b/README.md
@@ -134,9 +134,8 @@ The package names used by the canonical Arch Linux image are listed in
 
 ## Run
 
-The popup uses the normal system fonts found by Pango and Fontconfig; no font
-file argument or system-wide strans installation is required. Run it directly
-from the build tree:
+The popup uses the normal system fonts found by Pango and Fontconfig. Run
+it directly from the build tree:
 
 ```sh
 ./run.sh
@@ -160,12 +159,6 @@ opens `hira.map`, `kata.map`, `telex.map`, `kanji.dict`, `emoji.dict`, and
 `hanja.dict` from `DIR` at runtime; `run.sh` passes the tracked `map/`
 directory. Only the GTK subdirectory has install and uninstall targets.
 
-Pango shapes the complete string and selects glyph fallback from the system
-font set.
-
-The popup renderer uses Pango/PangoCairo and Cairo. When `DISPLAY` is set,
-`strans` starts its XIM worker in the same process.
-
 Configure clients as needed:
 
 ```sh
@@ -180,13 +173,9 @@ export GTK_IM_MODULE=strans
 GLFW_IM_MODULE=ibus kitty
 ```
 
-Building `gtk/im-strans.so` requires GTK development files. Installing an
-already-built, up-to-date module from this build tree does not: the install
-target first uses an explicit `GTK_MODULE_DIR`, then GTK's pkg-config
-variables, and finally the module directory reported by the GTK runtime's
-`gtk-query-immodules-3.0`. Packagers and cross builds should set
-`GTK_MODULE_DIR` explicitly. A prebuilt module must still match the target
-architecture and library ABI.
+Building and installing `gtk/im-strans.so` requires GTK development files;
+the install target uses GTK's own module directory, which packagers and
+cross builds override with `GTK_MODULE_DIR`.
 
 `DESTDIR` staging is supported and deliberately skips the host module-cache
 update. A native install needs the GTK runtime query utility so it can refresh
diff --git a/gtk/Makefile b/gtk/Makefile
index 20ed3ed..f357eec 100644
--- a/gtk/Makefile
+++ b/gtk/Makefile
@@ -7,13 +7,8 @@ GTK_QUERY_IMMODULES ?= gtk-query-immodules-3.0
 GTK_LIBDIR ?= $(shell $(PKG_CONFIG) --variable=libdir gtk+-3.0 2>/dev/null)
 GTK_BINARY_VERSION ?= $(shell $(PKG_CONFIG) \
 	--variable=gtk_binary_version gtk+-3.0 2>/dev/null)
-GTK_RUNTIME_MODULE_DIR = $(shell GTK_PATH= GTK_IM_MODULE_FILE= \
-	$(GTK_QUERY_IMMODULES) 2>/dev/null | \
-	awk -F '"' '/^"\// { sub("/[^/]*$$", "", $$2); print $$2; exit }')
-GTK_MODULE_DIR ?= $(strip $(if \
-	$(and $(strip $(GTK_LIBDIR)),$(strip $(GTK_BINARY_VERSION))),\
-	$(GTK_LIBDIR)/gtk-3.0/$(GTK_BINARY_VERSION)/immodules,\
-	$(GTK_RUNTIME_MODULE_DIR)))
+GTK_MODULE_DIR ?= $(strip $(if $(GTK_BINARY_VERSION),\
+	$(GTK_LIBDIR)/gtk-3.0/$(GTK_BINARY_VERSION)/immodules))
 
 all: $(PROG)