diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9b71d2a..0a489b9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -65,9 +65,7 @@ jobs:
       run: gormlite/test.sh
 
     - name: Collect coverage
-      run: |
-        go install github.com/dave/courtney@latest
-        courtney
+      run: go run github.com/dave/courtney@latest
       if: |
         github.event_name == 'push' &&
         matrix.os == 'ubuntu-latest'
diff --git a/embed/README.md b/embed/README.md
index 6ef19b0..b7b25c4 100644
--- a/embed/README.md
+++ b/embed/README.md
@@ -1,6 +1,6 @@
 # Embeddable Wasm build of SQLite
 
-This folder includes an embeddable Wasm build of SQLite 3.46.1 for use with
+This folder includes an embeddable Wasm build of SQLite 3.47.0 for use with
 [`github.com/ncruces/go-sqlite3`](https://pkg.go.dev/github.com/ncruces/go-sqlite3).
 
 The following optional features are compiled in:
diff --git a/embed/bcw2/README.md b/embed/bcw2/README.md
index f97f216..a64f1d7 100644
--- a/embed/bcw2/README.md
+++ b/embed/bcw2/README.md
@@ -1,6 +1,6 @@
 # Embeddable Wasm build of SQLite
 
-This folder includes an embeddable Wasm build of SQLite 3.46.1, including the experimental
+This folder includes an embeddable Wasm build of SQLite 3.47.0, including the experimental
 [`BEGIN CONCURRENT`](https://sqlite.org/src/doc/begin-concurrent/doc/begin_concurrent.md) and
 [Wal2](https://sqlite.org/cgi/src/doc/wal2/doc/wal2.md) patches.
 
diff --git a/embed/bcw2/bcw2.wasm b/embed/bcw2/bcw2.wasm
index 23cf0f1..b8e3694 100755
Binary files a/embed/bcw2/bcw2.wasm and b/embed/bcw2/bcw2.wasm differ
diff --git a/embed/bcw2/bcw2_test.go b/embed/bcw2/bcw2_test.go
index 89c86c7..d25944c 100644
--- a/embed/bcw2/bcw2_test.go
+++ b/embed/bcw2/bcw2_test.go
@@ -42,7 +42,7 @@ func Test_bcw2(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if version != "3.46.1" {
+	if version != "3.47.0" {
 		t.Error(version)
 	}
 }
diff --git a/embed/bcw2/build.sh b/embed/bcw2/build.sh
index 0514c77..238f0fa 100755
--- a/embed/bcw2/build.sh
+++ b/embed/bcw2/build.sh
@@ -13,7 +13,8 @@ mkdir -p build/ext/
 cp "$ROOT"/sqlite3/*.[ch] build/
 cp "$ROOT"/sqlite3/*.patch build/
 
-curl -# https://sqlite.org/src/tarball/sqlite.tar.gz?r=bedrock-3.46 | tar xz
+# https://sqlite.org/src/info/d2d954d43abe20a3
+curl -# https://sqlite.org/src/tarball/sqlite.tar.gz?r=d2d954d4 | tar xz
 
 cd sqlite
 if [[ "$OSTYPE" == "msys" || "$OSTYPE" == "cygwin" ]]; then
diff --git a/embed/init_test.go b/embed/init_test.go
index b7ecaa4..e5d63e8 100644
--- a/embed/init_test.go
+++ b/embed/init_test.go
@@ -19,7 +19,7 @@ func Test_init(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	if version != "3.46.1" {
+	if version != "3.47.0" {
 		t.Error(version)
 	}
 }
diff --git a/embed/sqlite3.wasm b/embed/sqlite3.wasm
index 749a6ed..173ad0e 100755
Binary files a/embed/sqlite3.wasm and b/embed/sqlite3.wasm differ
diff --git a/sqlite3/busy_timeout.patch b/sqlite3/busy_timeout.patch
index 1d954e8..9855acd 100644
--- a/sqlite3/busy_timeout.patch
+++ b/sqlite3/busy_timeout.patch
@@ -1,8 +1,8 @@
-# Replace sqliteDefaultBusyCallback.
-# This patch allows Go to handle (and interrupt) sqlite3_busy_timeout.
+# Replace sqliteDefaultBusyCallback, so Go can
+# handle, and interrupt, sqlite3_busy_timeout.
 --- sqlite3.c.orig
 +++ sqlite3.c
-@@ -181614,7 +181614,7 @@
+@@ -182908,7 +182908,7 @@
    if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT;
  #endif
    if( ms>0 ){
diff --git a/sqlite3/download.sh b/sqlite3/download.sh
index fa3e67f..d3849fd 100755
--- a/sqlite3/download.sh
+++ b/sqlite3/download.sh
@@ -3,7 +3,7 @@ set -euo pipefail
 
 cd -P -- "$(dirname -- "$0")"
 
-curl -#OL "https://sqlite.org/2024/sqlite-amalgamation-3460100.zip"
+curl -#OL "https://sqlite.org/2024/sqlite-amalgamation-3470000.zip"
 unzip -d . sqlite-amalgamation-*.zip
 mv sqlite-amalgamation-*/sqlite3.c .
 mv sqlite-amalgamation-*/sqlite3.h .
@@ -21,25 +21,25 @@ cat *.patch | patch --no-backup-if-mismatch
 
 mkdir -p ext/
 cd ext/
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/ext/misc/anycollseq.c"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/ext/misc/base64.c"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/ext/misc/decimal.c"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/ext/misc/ieee754.c"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/ext/misc/regexp.c"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/ext/misc/series.c"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/ext/misc/spellfix.c"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/ext/misc/uint.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/ext/misc/anycollseq.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/ext/misc/base64.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/ext/misc/decimal.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/ext/misc/ieee754.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/ext/misc/regexp.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/ext/misc/series.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/ext/misc/spellfix.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/ext/misc/uint.c"
 cd ~-
 
 cd ../vfs/tests/mptest/testdata/
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/mptest/mptest.c"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/mptest/config01.test"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/mptest/config02.test"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/mptest/crash01.test"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/mptest/crash02.subtest"
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/mptest/multiwrite01.test"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/mptest/mptest.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/mptest/config01.test"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/mptest/config02.test"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/mptest/crash01.test"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/mptest/crash02.subtest"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/mptest/multiwrite01.test"
 cd ~-
 
 cd ../vfs/tests/speedtest1/testdata/
-curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.46.1/test/speedtest1.c"
+curl -#OL "https://github.com/sqlite/sqlite/raw/version-3.47.0/test/speedtest1.c"
 cd ~-
\ No newline at end of file
diff --git a/sqlite3/long_double.patch b/sqlite3/long_double.patch
deleted file mode 100644
index 7049c51..0000000
--- a/sqlite3/long_double.patch
+++ /dev/null
@@ -1,29 +0,0 @@
---- sqlite3.c.orig
-+++ sqlite3.c
-@@ -35561,7 +35561,7 @@
- 
-   if( e==0 ){
-     *pResult = s;
--  }else if( sqlite3Config.bUseLongDouble ){
-+  }else if( sizeof(LONGDOUBLE_TYPE)>8 && sqlite3Config.bUseLongDouble ){
-     LONGDOUBLE_TYPE r = (LONGDOUBLE_TYPE)s;
-     if( e>0 ){
-       while( e>=100  ){ e-=100; r *= 1.0e+100L; }
-@@ -35967,7 +35967,7 @@
-   /* Multiply r by powers of ten until it lands somewhere in between
-   ** 1.0e+19 and 1.0e+17.
-   */
--  if( sqlite3Config.bUseLongDouble ){
-+  if( sizeof(LONGDOUBLE_TYPE)>8 && sqlite3Config.bUseLongDouble ){
-     LONGDOUBLE_TYPE rr = r;
-     if( rr>=1.0e+19 ){
-       while( rr>=1.0e+119L ){ exp+=100; rr *= 1.0e-100L; }
-@@ -89354,7 +89354,7 @@
-     ** than NULL */
-     return 1;
-   }
--  if( sqlite3Config.bUseLongDouble ){
-+  if( sizeof(LONGDOUBLE_TYPE)>8 && sqlite3Config.bUseLongDouble ){
-     LONGDOUBLE_TYPE x = (LONGDOUBLE_TYPE)i;
-     testcase( x<r );
-     testcase( x>r );
diff --git a/sqlite3/vfs.c b/sqlite3/vfs.c
index 7c397ef..0a15aaa 100644
--- a/sqlite3/vfs.c
+++ b/sqlite3/vfs.c
@@ -89,59 +89,13 @@ struct go_file {
   go_handle handle;
 };
 
-int sqlite3_os_init() {
-  static sqlite3_vfs os_vfs = {
-      .iVersion = 2,
-      .szOsFile = sizeof(struct go_file),
-      .mxPathname = 1024,
-      .zName = "os",
-
-      .xOpen = go_open_wrapper,
-      .xDelete = go_delete,
-      .xAccess = go_access,
-      .xFullPathname = go_full_pathname,
-
-      .xRandomness = go_randomness,
-      .xSleep = go_sleep,
-      .xCurrentTimeInt64 = go_current_time_64,
-  };
-  return sqlite3_vfs_register(&os_vfs, /*default=*/true);
-}
-
-int localtime_s(struct tm *const pTm, time_t const *const pTime) {
-  return go_localtime(pTm, (sqlite3_int64)*pTime);
-}
-
 sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName) {
-  if (zVfsName && go_vfs_find(zVfsName)) {
-    static sqlite3_vfs *go_vfs_list;
-
-    for (sqlite3_vfs *it = go_vfs_list; it; it = it->pNext) {
-      if (!strcmp(zVfsName, it->zName)) {
-        return it;
-      }
-    }
-
-    for (sqlite3_vfs **ptr = &go_vfs_list; *ptr;) {
-      sqlite3_vfs *it = *ptr;
-      if (go_vfs_find(it->zName)) {
-        ptr = &it->pNext;
-      } else {
-        *ptr = it->pNext;
-        free(it);
-      }
-    }
-
-    sqlite3_vfs *head = go_vfs_list;
-    go_vfs_list = malloc(sizeof(sqlite3_vfs) + strlen(zVfsName) + 1);
-    char *name = (char *)(go_vfs_list + 1);
-    strcpy(name, zVfsName);
-    *go_vfs_list = (sqlite3_vfs){
+  if (!zVfsName || !strcmp(zVfsName, "os")) {
+    static sqlite3_vfs os_vfs = {
         .iVersion = 2,
         .szOsFile = sizeof(struct go_file),
         .mxPathname = 1024,
-        .zName = name,
-        .pNext = head,
+        .zName = "os",
 
         .xOpen = go_open_wrapper,
         .xDelete = go_delete,
@@ -152,9 +106,60 @@ sqlite3_vfs *sqlite3_vfs_find(const char *zVfsName) {
         .xSleep = go_sleep,
         .xCurrentTimeInt64 = go_current_time_64,
     };
-    return go_vfs_list;
+    return &os_vfs;
   }
-  return sqlite3_vfs_find_orig(zVfsName);
+
+  if (!go_vfs_find(zVfsName)) {
+    return NULL;
+  }
+
+  static sqlite3_vfs *go_vfs_list;
+
+  for (sqlite3_vfs *it = go_vfs_list; it; it = it->pNext) {
+    if (!strcmp(zVfsName, it->zName)) {
+      return it;
+    }
+  }
+
+  for (sqlite3_vfs **ptr = &go_vfs_list; *ptr;) {
+    sqlite3_vfs *it = *ptr;
+    if (go_vfs_find(it->zName)) {
+      ptr = &it->pNext;
+    } else {
+      *ptr = it->pNext;
+      free(it);
+    }
+  }
+
+  sqlite3_vfs *head = go_vfs_list;
+  go_vfs_list = malloc(sizeof(sqlite3_vfs) + strlen(zVfsName) + 1);
+  char *name = (char *)(go_vfs_list + 1);
+  strcpy(name, zVfsName);
+  *go_vfs_list = (sqlite3_vfs){
+      .iVersion = 2,
+      .szOsFile = sizeof(struct go_file),
+      .mxPathname = 1024,
+      .zName = name,
+      .pNext = head,
+
+      .xOpen = go_open_wrapper,
+      .xDelete = go_delete,
+      .xAccess = go_access,
+      .xFullPathname = go_full_pathname,
+
+      .xRandomness = go_randomness,
+      .xSleep = go_sleep,
+      .xCurrentTimeInt64 = go_current_time_64,
+  };
+  return go_vfs_list;
+}
+
+int localtime_s(struct tm *const pTm, time_t const *const pTime) {
+  return go_localtime(pTm, (sqlite3_int64)*pTime);
+}
+
+int sqlite3_os_init() {
+  return SQLITE_OK;
 }
 
 static_assert(offsetof(sqlite3_vfs, zName) == 16, "Unexpected offset");
diff --git a/sqlite3/vfs_find.patch b/sqlite3/vfs_find.patch
index 5e4b999..a8c57a6 100644
--- a/sqlite3/vfs_find.patch
+++ b/sqlite3/vfs_find.patch
@@ -1,13 +1,21 @@
-# Wrap sqlite3_vfs_find.
-# This patch allows Go VFSes to be (un)registered.
+# Remove VFS registration. Go handles it.
 --- sqlite3.c.orig
 +++ sqlite3.c
-@@ -26396,7 +26396,7 @@
- ** Locate a VFS by name.  If no name is given, simply return the
- ** first VFS on the list.
+@@ -26594,7 +26594,7 @@
+   sqlite3_free(p);
+   return sqlite3_os_init();
+ }
+-
++#if 0 // Go handles VFS registration.
+ /*
+ ** The list of all registered VFS implementations.
  */
--SQLITE_API sqlite3_vfs *sqlite3_vfs_find(const char *zVfs){
-+SQLITE_API sqlite3_vfs *sqlite3_vfs_find_orig(const char *zVfs){
-   sqlite3_vfs *pVfs = 0;
- #if SQLITE_THREADSAFE
-   sqlite3_mutex *mutex;
+@@ -26691,7 +26691,7 @@
+   sqlite3_mutex_leave(mutex);
+   return SQLITE_OK;
+ }
+-
++#endif
+ /************** End of os.c **************************************************/
+ /************** Begin file fault.c *******************************************/
+ /*
diff --git a/vfs/tests/mptest/testdata/mptest.wasm.bz2 b/vfs/tests/mptest/testdata/mptest.wasm.bz2
index 1229a7e..a6ffc5a 100644
--- a/vfs/tests/mptest/testdata/mptest.wasm.bz2
+++ b/vfs/tests/mptest/testdata/mptest.wasm.bz2
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:a16772cc8f0d3b86e068440876f5ea7861e687420725966cd991c8929d365904
-size 473706
+oid sha256:5c69a9b1c88bc735797d81f9ba979a2683f66f8b2fe88106dcbd1cdb0bb26043
+size 480731
diff --git a/vfs/tests/speedtest1/testdata/main.c b/vfs/tests/speedtest1/testdata/main.c
index a5d6a5e..8b6ccf1 100644
--- a/vfs/tests/speedtest1/testdata/main.c
+++ b/vfs/tests/speedtest1/testdata/main.c
@@ -1,6 +1,3 @@
-#include <stdbool.h>
-#include <stddef.h>
-
 #define sqliteBusyCallback sqliteDefaultBusyCallback
 
 // Amalgamation
diff --git a/vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2 b/vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2
index 420b80f..0c49f4a 100644
--- a/vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2
+++ b/vfs/tests/speedtest1/testdata/speedtest1.wasm.bz2
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:9a2b5c21bdc8214a2c5a278c34e06b9079813a487fbd575ca2d62386b206f809
-size 487023
+oid sha256:a2f414d7540e31733b6c2f1cbfb2f8d39506215487a1b73aa03f80d8a2fe371a
+size 493518