diff --git a/Package.swift b/Package.swift
index fe8d28f..3d2f250 100644
--- a/Package.swift
+++ b/Package.swift
@@ -113,6 +113,7 @@ let package = Package(
 			name: "CSQLite",
 			targets: [
 				"CSQLite",
+				"CSQLiteExtensions",
 			]),
 	],
 	traits: [
@@ -261,6 +262,27 @@ let package = Package(
 			name: "ENABLE_STAT4",
 			description: "Enables the sqlite_stat4 table"
 		),
+		// Statically linked extensions
+		.trait(
+			name: "CSQLITE_ENABLE_DECIMAL_EXTENSION",
+			description: "Enables the statically linked decimal extension"
+		),
+		.trait(
+			name: "CSQLITE_ENABLE_IEEE754_EXTENSION",
+			description: "Enables the statically linked ieee754 extension"
+		),
+		.trait(
+			name: "CSQLITE_ENABLE_SERIES_EXTENSION",
+			description: "Enables the statically linked series extension"
+		),
+		.trait(
+			name: "CSQLITE_ENABLE_SHA3_EXTENSION",
+			description: "Enables the statically linked sha3 extension"
+		),
+		.trait(
+			name: "CSQLITE_ENABLE_UUID_EXTENSION",
+			description: "Enables the statically linked uuid extension"
+		),
 		// Default traits
 		.default(enabledTraits: [
 			"DQS_0",
@@ -284,6 +306,11 @@ let package = Package(
 			"ENABLE_SNAPSHOT",
 			"ENABLE_STMTVTAB",
 			"ENABLE_STAT4",
+			"CSQLITE_ENABLE_DECIMAL_EXTENSION",
+			"CSQLITE_ENABLE_IEEE754_EXTENSION",
+			"CSQLITE_ENABLE_SERIES_EXTENSION",
+			"CSQLITE_ENABLE_SHA3_EXTENSION",
+			"CSQLITE_ENABLE_UUID_EXTENSION",
 		]),
 	],
 	targets: [
@@ -291,19 +318,84 @@ let package = Package(
 		// Targets can depend on other targets in this package and products from dependencies.
 		.target(
 			name: "CSQLite",
-			cSettings: compileTimeOptions + platformConfiguration + features + [
+			cSettings: compileTimeOptions + platformConfiguration + features,
+			linkerSettings: [
+				.linkedLibrary("m"),
+			]),
+		.target(
+			name: "CSQLiteExtensions",
+			dependencies: [
+				.targetItem(name: "CSQLiteDecimalExtension", condition: .when(traits: ["CSQLITE_ENABLE_DECIMAL_EXTENSION"])),
+				.targetItem(name: "CSQLiteIEEE754Extension", condition: .when(traits: ["CSQLITE_ENABLE_IEEE754_EXTENSION"])),
+				.targetItem(name: "CSQLiteSeriesExtension", condition: .when(traits: ["CSQLITE_ENABLE_SERIES_EXTENSION"])),
+				.targetItem(name: "CSQLiteSHA3Extension", condition: .when(traits: ["CSQLITE_ENABLE_SHA3_EXTENSION"])),
+				.targetItem(name: "CSQLiteUUIDExtension", condition: .when(traits: ["CSQLITE_ENABLE_UUID_EXTENSION"])),
+			]),
+		.target(
+			name: "CSQLiteDecimalExtension",
+			dependencies: [
+				"CSQLite",
+			],
+			path: "Sources/extensions/decimal",
+			cSettings: [
 				// For statically linking extensions
 				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
 				.define("SQLITE_CORE", to: "1"),
+			]),
+		.target(
+			name: "CSQLiteIEEE754Extension",
+			dependencies: [
+				"CSQLite",
 			],
-			linkerSettings: [
-				.linkedLibrary("m"),
+			path: "Sources/extensions/ieee754",
+			cSettings: [
+				// For statically linking extensions
+				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
+				.define("SQLITE_CORE", to: "1"),
+			]),
+		.target(
+			name: "CSQLiteSeriesExtension",
+			dependencies: [
+				"CSQLite",
+			],
+			path: "Sources/extensions/series",
+			cSettings: [
+				// For statically linking extensions
+				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
+				.define("SQLITE_CORE", to: "1"),
+			]),
+		.target(
+			name: "CSQLiteSHA3Extension",
+			dependencies: [
+				"CSQLite",
+			],
+			path: "Sources/extensions/sha3",
+			cSettings: [
+				// For statically linking extensions
+				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
+				.define("SQLITE_CORE", to: "1"),
+			]),
+		.target(
+			name: "CSQLiteUUIDExtension",
+			dependencies: [
+				"CSQLite",
+			],
+			path: "Sources/extensions/uuid",
+			cSettings: [
+				// For statically linking extensions
+				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
+				.define("SQLITE_CORE", to: "1"),
 			]),
 		.testTarget(
 			name: "CSQLiteTests",
 			dependencies: [
 				"CSQLite",
-			])
+			]),
+		.testTarget(
+			name: "CSQLiteExtensionsTests",
+			dependencies: [
+				"CSQLiteExtensions",
+			]),
 	],
 	cLanguageStandard: .gnu11
 )
diff --git a/Package@swift-5.3.swift b/Package@swift-5.3.swift
index 3229c7e..6344815 100644
--- a/Package@swift-5.3.swift
+++ b/Package@swift-5.3.swift
@@ -96,6 +96,7 @@ let package = Package(
 			name: "CSQLite",
 			targets: [
 				"CSQLite",
+				"CSQLiteExtensions",
 			]),
 	],
 	targets: [
@@ -103,19 +104,84 @@ let package = Package(
 		// Targets can depend on other targets in this package and products from dependencies.
 		.target(
 			name: "CSQLite",
-			cSettings: compileTimeOptions + platformConfiguration + features + [
+			cSettings: compileTimeOptions + platformConfiguration + features,
+			linkerSettings: [
+				.linkedLibrary("m"),
+			]),
+		.target(
+			name: "CSQLiteExtensions",
+			dependencies: [
+				"CSQLiteDecimalExtension",
+				"CSQLiteIEEE754Extension",
+				"CSQLiteSeriesExtension",
+				"CSQLiteSHA3Extension",
+				"CSQLiteUUIDExtension",
+			]),
+		.target(
+			name: "CSQLiteDecimalExtension",
+			dependencies: [
+				"CSQLite",
+			],
+			path: "Sources/extensions/decimal",
+			cSettings: [
 				// For statically linking extensions
 				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
 				.define("SQLITE_CORE", to: "1"),
+			]),
+		.target(
+			name: "CSQLiteIEEE754Extension",
+			dependencies: [
+				"CSQLite",
 			],
-			linkerSettings: [
-				.linkedLibrary("m"),
+			path: "Sources/extensions/ieee754",
+			cSettings: [
+				// For statically linking extensions
+				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
+				.define("SQLITE_CORE", to: "1"),
+			]),
+		.target(
+			name: "CSQLiteSeriesExtension",
+			dependencies: [
+				"CSQLite",
+			],
+			path: "Sources/extensions/series",
+			cSettings: [
+				// For statically linking extensions
+				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
+				.define("SQLITE_CORE", to: "1"),
+			]),
+		.target(
+			name: "CSQLiteSHA3Extension",
+			dependencies: [
+				"CSQLite",
+			],
+			path: "Sources/extensions/sha3",
+			cSettings: [
+				// For statically linking extensions
+				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
+				.define("SQLITE_CORE", to: "1"),
+			]),
+		.target(
+			name: "CSQLiteUUIDExtension",
+			dependencies: [
+				"CSQLite",
+			],
+			path: "Sources/extensions/uuid",
+			cSettings: [
+				// For statically linking extensions
+				// https://sqlite.org/loadext.html#statically_linking_a_run_time_loadable_extension
+				.define("SQLITE_CORE", to: "1"),
 			]),
 		.testTarget(
 			name: "CSQLiteTests",
 			dependencies: [
 				"CSQLite",
-			])
+			]),
+		.testTarget(
+			name: "CSQLiteExtensionsTests",
+			dependencies: [
+				"CSQLiteExtensions",
+			]),
 	],
 	cLanguageStandard: .gnu11
 )
diff --git a/README.md b/README.md
index 76eea66..644f3f4 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,18 @@ The following traits enable commonly-used SQLite features:
 > [!NOTE]
 > The `ENABLE_SESSION` trait also sets the `ENABLE_PREUPDATE_HOOK` trait.
 
+### Statically Linked Extensions
+
+The following traits enable statically linked SQLite extensions and helper functions for automatic extension registration:
+
+| Package Trait | Default | SQLite Extension |
+| --- | :---: | --- |
+| CSQLITE_ENABLE_DECIMAL_EXTENSION | Y | [decimal](https://sqlite.org/floatingpoint.html#the_decimal_c_extension) |
+| CSQLITE_ENABLE_IEEE754_EXTENSION | Y | [ieee754](https://sqlite.org/floatingpoint.html#the_ieee754_c_extension) |
+| CSQLITE_ENABLE_SERIES_EXTENSION | Y | [series](https://www.sqlite.org/src/file/ext/misc/series.c) |
+| CSQLITE_ENABLE_SHA3_EXTENSION | Y | [sha3](https://www.sqlite.org/src/file/ext/misc/shathree.c) |
+| CSQLITE_ENABLE_UUID_EXTENSION | Y | [uuid](https://www.sqlite.org/src/file/ext/misc/uuid.c) |
+
 ## License
 
 SQLite is in the [public domain](https://sqlite.org/copyright.html).
diff --git a/Sources/CSQLite/csqlite_shims.c b/Sources/CSQLite/csqlite_shims.c
index 2927386..bea84e8 100644
--- a/Sources/CSQLite/csqlite_shims.c
+++ b/Sources/CSQLite/csqlite_shims.c
@@ -295,60 +295,3 @@ int csqlite_sqlite3_vtab_uses_all_schemas(sqlite3 *db)
 {
 	return sqlite3_vtab_config(db, SQLITE_VTAB_USES_ALL_SCHEMAS);
 }
-
-// MARK: - Database extensions
-
-void sqlite3_decimal_init(void);
-int csqlite_sqlite3_auto_extension_decimal()
-{
-	return sqlite3_auto_extension(sqlite3_decimal_init);
-}
-
-int csqlite_sqlite3_cancel_auto_extension_decimal()
-{
-	return sqlite3_cancel_auto_extension(sqlite3_decimal_init);
-}
-
-void sqlite3_ieee_init(void);
-int csqlite_sqlite3_auto_extension_ieee754()
-{
-	return sqlite3_auto_extension(sqlite3_ieee_init);
-}
-
-int csqlite_sqlite3_cancel_auto_extension_ieee754()
-{
-	return sqlite3_cancel_auto_extension(sqlite3_ieee_init);
-}
-
-void sqlite3_series_init(void);
-int csqlite_sqlite3_auto_extension_series()
-{
-	return sqlite3_auto_extension(sqlite3_series_init);
-}
-
-int csqlite_sqlite3_cancel_auto_extension_series()
-{
-	return sqlite3_cancel_auto_extension(sqlite3_series_init);
-}
-
-void sqlite3_shathree_init(void);
-int csqlite_sqlite3_auto_extension_sha3()
-{
-	return sqlite3_auto_extension(sqlite3_shathree_init);
-}
-
-int csqlite_sqlite3_cancel_auto_extension_sha3()
-{
-	return sqlite3_cancel_auto_extension(sqlite3_shathree_init);
-}
-
-void sqlite3_uuid_init(void);
-int csqlite_sqlite3_auto_extension_uuid()
-{
-	return sqlite3_auto_extension(sqlite3_uuid_init);
-}
-
-int csqlite_sqlite3_cancel_auto_extension_uuid()
-{
-	return sqlite3_cancel_auto_extension(sqlite3_uuid_init);
-}
diff --git a/Sources/CSQLite/include/csqlite_shims.h b/Sources/CSQLite/include/csqlite_shims.h
index c9200fa..acef530 100644
--- a/Sources/CSQLite/include/csqlite_shims.h
+++ b/Sources/CSQLite/include/csqlite_shims.h
@@ -141,31 +141,3 @@ int csqlite_sqlite3_vtab_config_innocuous(sqlite3 *db);
 int csqlite_sqlite3_vtab_config_directonly(sqlite3 *db);
 /// Equivalent to `sqlite3_vtab_config(db, SQLITE_VTAB_USES_ALL_SCHEMAS)`
 int csqlite_sqlite3_vtab_uses_all_schemas(sqlite3 *db);
-
-// MARK: - Database extensions
-// See https://sqlite.org/loadext.html
-
-/// Equivalent to `sqlite3_auto_extension(sqlite3_decimal_init)`
-int csqlite_sqlite3_auto_extension_decimal(void);
-/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_decimal_init)`
-int csqlite_sqlite3_cancel_auto_extension_decimal(void);
-
-/// Equivalent to `sqlite3_auto_extension(sqlite3_ieee_init)`
-int csqlite_sqlite3_auto_extension_ieee754(void);
-/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_ieee_init)`
-int csqlite_sqlite3_cancel_auto_extension_ieee754(void);
-
-/// Equivalent to `sqlite3_auto_extension(sqlite3_series_init)`
-int csqlite_sqlite3_auto_extension_series(void);
-/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_series_init)`
-int csqlite_sqlite3_cancel_auto_extension_series(void);
-
-/// Equivalent to `sqlite3_auto_extension(sqlite3_shathree_init)`
-int csqlite_sqlite3_auto_extension_sha3(void);
-/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_shathree_init)`
-int csqlite_sqlite3_cancel_auto_extension_sha3(void);
-
-/// Equivalent to `sqlite3_auto_extension(sqlite3_uuid_init)`
-int csqlite_sqlite3_auto_extension_uuid(void);
-/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_uuid_init)`
-int csqlite_sqlite3_cancel_auto_extension_uuid(void);
diff --git a/Sources/CSQLiteExtensions/CSQLiteExtensions.swift b/Sources/CSQLiteExtensions/CSQLiteExtensions.swift
new file mode 100644
index 0000000..0529549
--- /dev/null
+++ b/Sources/CSQLiteExtensions/CSQLiteExtensions.swift
@@ -0,0 +1,38 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+#if false
+@_exported import CSQLite
+#endif
+
+#if swift(<6.1) || CSQLITE_ENABLE_DECIMAL_EXTENSION
+@_exported import CSQLiteDecimalExtension
+#endif
+
+#if swift(<6.1) || CSQLITE_ENABLE_IEEE754_EXTENSION
+@_exported import CSQLiteIEEE754Extension
+#endif
+
+#if swift(<6.1) || CSQLITE_ENABLE_SERIES_EXTENSION
+@_exported import CSQLiteSeriesExtension
+#endif
+
+#if swift(<6.1) || CSQLITE_ENABLE_SHA3_EXTENSION
+@_exported import CSQLiteSHA3Extension
+#endif
+
+#if swift(<6.1) || CSQLITE_ENABLE_UUID_EXTENSION
+@_exported import CSQLiteUUIDExtension
+#endif
diff --git a/Sources/extensions/decimal/csqlite_decimal_extension.c b/Sources/extensions/decimal/csqlite_decimal_extension.c
new file mode 100644
index 0000000..018e8be
--- /dev/null
+++ b/Sources/extensions/decimal/csqlite_decimal_extension.c
@@ -0,0 +1,28 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+#include "csqlite_decimal_extension.h"
+#include "sqlite3.h"
+
+void sqlite3_decimal_init(void);
+int csqlite_sqlite3_auto_extension_decimal()
+{
+	return sqlite3_auto_extension(sqlite3_decimal_init);
+}
+
+int csqlite_sqlite3_cancel_auto_extension_decimal()
+{
+	return sqlite3_cancel_auto_extension(sqlite3_decimal_init);
+}
diff --git a/Sources/CSQLite/decimal.c b/Sources/extensions/decimal/decimal.c
similarity index 100%
rename from Sources/CSQLite/decimal.c
rename to Sources/extensions/decimal/decimal.c
diff --git a/Sources/extensions/decimal/include/csqlite_decimal_extension.h b/Sources/extensions/decimal/include/csqlite_decimal_extension.h
new file mode 100644
index 0000000..05a1f1f
--- /dev/null
+++ b/Sources/extensions/decimal/include/csqlite_decimal_extension.h
@@ -0,0 +1,22 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+// MARK: - Database extensions
+// See https://sqlite.org/loadext.html
+
+/// Equivalent to `sqlite3_auto_extension(sqlite3_decimal_init)`
+int csqlite_sqlite3_auto_extension_decimal(void);
+/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_decimal_init)`
+int csqlite_sqlite3_cancel_auto_extension_decimal(void);
diff --git a/Sources/extensions/decimal/include/module.modulemap b/Sources/extensions/decimal/include/module.modulemap
new file mode 100644
index 0000000..663c837
--- /dev/null
+++ b/Sources/extensions/decimal/include/module.modulemap
@@ -0,0 +1,4 @@
+module CSQLiteDecimalExtension {
+	header "csqlite_decimal_extension.h"
+	export *
+}
diff --git a/Sources/extensions/ieee754/csqlite_ieee754_extension.c b/Sources/extensions/ieee754/csqlite_ieee754_extension.c
new file mode 100644
index 0000000..1ac1076
--- /dev/null
+++ b/Sources/extensions/ieee754/csqlite_ieee754_extension.c
@@ -0,0 +1,28 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+#include "csqlite_ieee754_extension.h"
+#include "sqlite3.h"
+
+void sqlite3_ieee_init(void);
+int csqlite_sqlite3_auto_extension_ieee754()
+{
+	return sqlite3_auto_extension(sqlite3_ieee_init);
+}
+
+int csqlite_sqlite3_cancel_auto_extension_ieee754()
+{
+	return sqlite3_cancel_auto_extension(sqlite3_ieee_init);
+}
diff --git a/Sources/CSQLite/ieee754.c b/Sources/extensions/ieee754/ieee754.c
similarity index 100%
rename from Sources/CSQLite/ieee754.c
rename to Sources/extensions/ieee754/ieee754.c
diff --git a/Sources/extensions/ieee754/include/csqlite_ieee754_extension.h b/Sources/extensions/ieee754/include/csqlite_ieee754_extension.h
new file mode 100644
index 0000000..50417d5
--- /dev/null
+++ b/Sources/extensions/ieee754/include/csqlite_ieee754_extension.h
@@ -0,0 +1,22 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+// MARK: - Database extensions
+// See https://sqlite.org/loadext.html
+
+/// Equivalent to `sqlite3_auto_extension(sqlite3_ieee_init)`
+int csqlite_sqlite3_auto_extension_ieee754(void);
+/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_ieee_init)`
+int csqlite_sqlite3_cancel_auto_extension_ieee754(void);
diff --git a/Sources/extensions/ieee754/include/module.modulemap b/Sources/extensions/ieee754/include/module.modulemap
new file mode 100644
index 0000000..a2390e9
--- /dev/null
+++ b/Sources/extensions/ieee754/include/module.modulemap
@@ -0,0 +1,4 @@
+module CSQLiteIEEE754Extension {
+	header "csqlite_ieee754_extension.h"
+	export *
+}
diff --git a/Sources/extensions/series/csqlite_series_extension.c b/Sources/extensions/series/csqlite_series_extension.c
new file mode 100644
index 0000000..e59a71a
--- /dev/null
+++ b/Sources/extensions/series/csqlite_series_extension.c
@@ -0,0 +1,28 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+#include "csqlite_series_extension.h"
+#include "sqlite3.h"
+
+void sqlite3_series_init(void);
+int csqlite_sqlite3_auto_extension_series()
+{
+	return sqlite3_auto_extension(sqlite3_series_init);
+}
+
+int csqlite_sqlite3_cancel_auto_extension_series()
+{
+	return sqlite3_cancel_auto_extension(sqlite3_series_init);
+}
diff --git a/Sources/extensions/series/include/csqlite_series_extension.h b/Sources/extensions/series/include/csqlite_series_extension.h
new file mode 100644
index 0000000..0619aa0
--- /dev/null
+++ b/Sources/extensions/series/include/csqlite_series_extension.h
@@ -0,0 +1,22 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+// MARK: - Database extensions
+// See https://sqlite.org/loadext.html
+
+/// Equivalent to `sqlite3_auto_extension(sqlite3_series_init)`
+int csqlite_sqlite3_auto_extension_series(void);
+/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_series_init)`
+int csqlite_sqlite3_cancel_auto_extension_series(void);
diff --git a/Sources/extensions/series/include/module.modulemap b/Sources/extensions/series/include/module.modulemap
new file mode 100644
index 0000000..5789092
--- /dev/null
+++ b/Sources/extensions/series/include/module.modulemap
@@ -0,0 +1,4 @@
+module CSQLiteSeriesExtension {
+	header "csqlite_series_extension.h"
+	export *
+}
diff --git a/Sources/CSQLite/series.c b/Sources/extensions/series/series.c
similarity index 100%
rename from Sources/CSQLite/series.c
rename to Sources/extensions/series/series.c
diff --git a/Sources/extensions/sha3/csqlite_sha3_extension.c b/Sources/extensions/sha3/csqlite_sha3_extension.c
new file mode 100644
index 0000000..e3ed958
--- /dev/null
+++ b/Sources/extensions/sha3/csqlite_sha3_extension.c
@@ -0,0 +1,28 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+#include "csqlite_sha3_extension.h"
+#include "sqlite3.h"
+
+void sqlite3_shathree_init(void);
+int csqlite_sqlite3_auto_extension_sha3()
+{
+	return sqlite3_auto_extension(sqlite3_shathree_init);
+}
+
+int csqlite_sqlite3_cancel_auto_extension_sha3()
+{
+	return sqlite3_cancel_auto_extension(sqlite3_shathree_init);
+}
diff --git a/Sources/extensions/sha3/include/csqlite_sha3_extension.h b/Sources/extensions/sha3/include/csqlite_sha3_extension.h
new file mode 100644
index 0000000..19b5ec6
--- /dev/null
+++ b/Sources/extensions/sha3/include/csqlite_sha3_extension.h
@@ -0,0 +1,22 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+// MARK: - Database extensions
+// See https://sqlite.org/loadext.html
+
+/// Equivalent to `sqlite3_auto_extension(sqlite3_shathree_init)`
+int csqlite_sqlite3_auto_extension_sha3(void);
+/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_shathree_init)`
+int csqlite_sqlite3_cancel_auto_extension_sha3(void);
diff --git a/Sources/extensions/sha3/include/module.modulemap b/Sources/extensions/sha3/include/module.modulemap
new file mode 100644
index 0000000..497ec49
--- /dev/null
+++ b/Sources/extensions/sha3/include/module.modulemap
@@ -0,0 +1,4 @@
+module CSQLiteSHA3Extension {
+	header "csqlite_sha3_extension.h"
+	export *
+}
diff --git a/Sources/CSQLite/shathree.c b/Sources/extensions/sha3/shathree.c
similarity index 100%
rename from Sources/CSQLite/shathree.c
rename to Sources/extensions/sha3/shathree.c
diff --git a/Sources/extensions/uuid/csqlite_uuid_extension.c b/Sources/extensions/uuid/csqlite_uuid_extension.c
new file mode 100644
index 0000000..0b1c39b
--- /dev/null
+++ b/Sources/extensions/uuid/csqlite_uuid_extension.c
@@ -0,0 +1,28 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+#include "csqlite_uuid_extension.h"
+#include "sqlite3.h"
+
+void sqlite3_uuid_init(void);
+int csqlite_sqlite3_auto_extension_uuid()
+{
+	return sqlite3_auto_extension(sqlite3_uuid_init);
+}
+
+int csqlite_sqlite3_cancel_auto_extension_uuid()
+{
+	return sqlite3_cancel_auto_extension(sqlite3_uuid_init);
+}
diff --git a/Sources/extensions/uuid/include/csqlite_uuid_extension.h b/Sources/extensions/uuid/include/csqlite_uuid_extension.h
new file mode 100644
index 0000000..e218831
--- /dev/null
+++ b/Sources/extensions/uuid/include/csqlite_uuid_extension.h
@@ -0,0 +1,22 @@
+/*
+ ** 2025-05-30
+ **
+ ** The author disclaims copyright to this source code.  In place of
+ ** a legal notice, here is a blessing:
+ **
+ **    May you do good and not evil.
+ **    May you find forgiveness for yourself and forgive others.
+ **    May you share freely, never taking more than you give.
+ **
+ ******************************************************************************
+ **
+ ** Functions to manage automatic database extension registration from Swift.
+ */
+
+// MARK: - Database extensions
+// See https://sqlite.org/loadext.html
+
+/// Equivalent to `sqlite3_auto_extension(sqlite3_uuid_init)`
+int csqlite_sqlite3_auto_extension_uuid(void);
+/// Equivalent to `sqlite3_cancel_auto_extension(sqlite3_uuid_init)`
+int csqlite_sqlite3_cancel_auto_extension_uuid(void);
diff --git a/Sources/extensions/uuid/include/module.modulemap b/Sources/extensions/uuid/include/module.modulemap
new file mode 100644
index 0000000..f73c296
--- /dev/null
+++ b/Sources/extensions/uuid/include/module.modulemap
@@ -0,0 +1,4 @@
+module CSQLiteUUIDExtension {
+	header "csqlite_uuid_extension.h"
+	export *
+}
diff --git a/Sources/CSQLite/uuid.c b/Sources/extensions/uuid/uuid.c
similarity index 100%
rename from Sources/CSQLite/uuid.c
rename to Sources/extensions/uuid/uuid.c
diff --git a/Tests/CSQLiteTests/CSQLiteExtensionTests.swift b/Tests/CSQLiteExtensionsTests/CSQLiteExtensionsTests.swift
similarity index 90%
rename from Tests/CSQLiteTests/CSQLiteExtensionTests.swift
rename to Tests/CSQLiteExtensionsTests/CSQLiteExtensionsTests.swift
index 65dc193..9913c37 100644
--- a/Tests/CSQLiteTests/CSQLiteExtensionTests.swift
+++ b/Tests/CSQLiteExtensionsTests/CSQLiteExtensionsTests.swift
@@ -1,5 +1,5 @@
 /*
- ** 2021-06-08
+ ** 2024-05-24
  **
  ** The author disclaims copyright to this source code.  In place of
  ** a legal notice, here is a blessing:
@@ -10,12 +10,13 @@
  **
  ******************************************************************************
  **
- ** Basic tests of CSQLite statically-linked extension functionality.
+ ** Basic tests of CSQLite statically linked extension functionality.
  */
 
 import Testing
 import Foundation
-@testable import CSQLite
+import CSQLite
+@testable import CSQLiteExtensions
 
 #if swift(<6.1) || THREADSAFE_0
 @MainActor
@@ -28,6 +29,7 @@ import Foundation
 	}
 #endif
 
+#if swift(<6.1) || CSQLITE_ENABLE_DECIMAL_EXTENSION
 	@Test func decimal() throws {
 		try #require(csqlite_sqlite3_auto_extension_decimal() == SQLITE_OK)
 
@@ -37,13 +39,16 @@ import Foundation
 		var stmt: OpaquePointer?
 		#expect(sqlite3_prepare_v2(db, "select decimal_add('1.67','2.33');", -1, &stmt, nil) == SQLITE_OK)
 		#expect(sqlite3_step(stmt) == SQLITE_ROW)
+
 		let r = String(cString: sqlite3_column_text(stmt, 0))
 		#expect(r == "4.00")
 
 		#expect(sqlite3_finalize(stmt) == SQLITE_OK)
 		#expect(sqlite3_close(db) == SQLITE_OK)
 	}
+#endif
 
+#if swift(<6.1) || CSQLITE_ENABLE_IEEE754_EXTENSION
 	@Test func ieee() throws {
 		try #require(csqlite_sqlite3_auto_extension_ieee754() == SQLITE_OK)
 
@@ -59,7 +64,9 @@ import Foundation
 		#expect(sqlite3_finalize(stmt) == SQLITE_OK)
 		#expect(sqlite3_close(db) == SQLITE_OK)
 	}
+#endif
 
+#if swift(<6.1) || CSQLITE_ENABLE_SERIES_EXTENSION
 	@Test func series() throws {
 		try #require(csqlite_sqlite3_auto_extension_series() == SQLITE_OK)
 
@@ -67,6 +74,7 @@ import Foundation
 		#expect(sqlite3_open_v2(":memory:", &db, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, nil) == SQLITE_OK)
 
 		var stmt: OpaquePointer?
+
 		#expect(sqlite3_prepare_v2(db, "select * from generate_series(10,20,5);", -1, &stmt, nil) == SQLITE_OK)
 		#expect(sqlite3_step(stmt) == SQLITE_ROW)
 		#expect(sqlite3_column_int(stmt, 0) == 10)
@@ -78,7 +86,9 @@ import Foundation
 		#expect(sqlite3_finalize(stmt) == SQLITE_OK)
 		#expect(sqlite3_close(db) == SQLITE_OK)
 	}
+#endif
 
+#if swift(<6.1) || CSQLITE_ENABLE_SHA3_EXTENSION
 	@Test func sha3() throws {
 		try #require(csqlite_sqlite3_auto_extension_sha3() == SQLITE_OK)
 
@@ -88,13 +98,16 @@ import Foundation
 		var stmt: OpaquePointer?
 		#expect(sqlite3_prepare_v2(db, "select lower(hex(sha3('sqlite')));", -1, &stmt, nil) == SQLITE_OK)
 		#expect(sqlite3_step(stmt) == SQLITE_ROW)
+
 		let h = String(cString: sqlite3_column_text(stmt, 0))
 		#expect(h == "963a88636d4c9cc3f011dfc9dc0058e96669d80a89893c68c0bb08a6a8208db3")
 
 		#expect(sqlite3_finalize(stmt) == SQLITE_OK)
 		#expect(sqlite3_close(db) == SQLITE_OK)
 	}
+#endif
 
+#if swift(<6.1) || CSQLITE_ENABLE_UUID_EXTENSION
 	@Test func uuid() throws {
 		try #require(csqlite_sqlite3_auto_extension_uuid() == SQLITE_OK)
 
@@ -118,4 +131,5 @@ import Foundation
 		#expect(sqlite3_finalize(stmt) == SQLITE_OK)
 		#expect(sqlite3_close(db) == SQLITE_OK)
 	}
+#endif
 }