diff --git a/kconfigs/Kconfig.features b/kconfigs/Kconfig.features
index d149f38fd2a9..487dce9968e3 100644
--- a/kconfigs/Kconfig.features
+++ b/kconfigs/Kconfig.features
@@ -22,6 +22,11 @@ config HAS_ARCH_32BIT
     help
         Indicates that the CPU has a 32-bits architecture.
 
+config HAS_ARCH_64BIT
+    bool
+    help
+        Indicates that the CPU has a 64-bits architecture.
+
 config HAS_ARCH_ARM
     bool
     help
diff --git a/pkg/ccn-lite/patches/0007-print-fix-for-64-bit.patch b/pkg/ccn-lite/patches/0007-print-fix-for-64-bit.patch
new file mode 100644
index 000000000000..edcd2d82571f
--- /dev/null
+++ b/pkg/ccn-lite/patches/0007-print-fix-for-64-bit.patch
@@ -0,0 +1,25 @@
+From 5bdce82958a7fa1596f69ac4ed75948e8bfdb83b Mon Sep 17 00:00:00 2001
+From: Frederik Haxel <haxel@fzi.de>
+Date: Mon, 14 Aug 2023 14:53:59 +0200
+Subject: [PATCH] print fix for 64-bit native
+
+---
+ src/ccnl-riot/src/ccn-lite-riot.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/ccnl-riot/src/ccn-lite-riot.c b/src/ccnl-riot/src/ccn-lite-riot.c
+index fde0a44..0ddb488 100644
+--- a/src/ccnl-riot/src/ccn-lite-riot.c
++++ b/src/ccnl-riot/src/ccn-lite-riot.c
+@@ -278,7 +278,7 @@ int
+ ccnl_app_RX(struct ccnl_relay_s *ccnl, struct ccnl_content_s *c)
+ {
+     (void) ccnl;
+-    DEBUGMSG(DEBUG, "Received something of size %u for the application\n", c->pkt->contlen);
++    DEBUGMSG(DEBUG, "Received something of size %u for the application\n", (unsigned)c->pkt->contlen);
+ 
+     gnrc_pktsnip_t *pkt= gnrc_pktbuf_add(NULL, c->pkt->content,
+                                          c->pkt->contlen,
+-- 
+2.34.1
+
diff --git a/pkg/cifra/Kconfig b/pkg/cifra/Kconfig
index 7f1b4400debb..279f3ec5f280 100644
--- a/pkg/cifra/Kconfig
+++ b/pkg/cifra/Kconfig
@@ -8,7 +8,7 @@
 config PACKAGE_CIFRA
     bool "Cifra cryptographic primitives"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
     help
         Cifra is a collection of cryptographic primitives targeted at
         embedded use.
diff --git a/pkg/cifra/Makefile.dep b/pkg/cifra/Makefile.dep
index 57d8d54026fe..bbb39611d8b1 100644
--- a/pkg/cifra/Makefile.dep
+++ b/pkg/cifra/Makefile.dep
@@ -1,2 +1,2 @@
 # Cifra is only supported by 32 bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/cn-cbor/Kconfig b/pkg/cn-cbor/Kconfig
index 89d0c8af9b5a..1c6a3ecc8b6e 100644
--- a/pkg/cn-cbor/Kconfig
+++ b/pkg/cn-cbor/Kconfig
@@ -8,7 +8,7 @@
 config PACKAGE_CN-CBOR
     bool "Constrained Node CBOR"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
     select MODULE_POSIX_HEADERS
     help
         A constrained node implementation of CBOR in C.
diff --git a/pkg/cn-cbor/Makefile.dep b/pkg/cn-cbor/Makefile.dep
index d2baa35dfe2b..ff9e6dbea54f 100644
--- a/pkg/cn-cbor/Makefile.dep
+++ b/pkg/cn-cbor/Makefile.dep
@@ -1,4 +1,4 @@
 USEMODULE += posix_headers
 
 # CN-CBOR is only supported by 32 bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/flashdb/Makefile.dep b/pkg/flashdb/Makefile.dep
index 98f771e1a2cd..e85e9b7ac89d 100644
--- a/pkg/flashdb/Makefile.dep
+++ b/pkg/flashdb/Makefile.dep
@@ -1,5 +1,5 @@
 # FlashDB is only supported by 32 bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
 CFLAGS += -DFDB_USING_NATIVE_ASSERT
 
 ifneq (,$(filter flashdb_tsdb,$(USEMODULE)))
diff --git a/pkg/flashdb/patches/0002-64bit-fix.patch b/pkg/flashdb/patches/0002-64bit-fix.patch
new file mode 100644
index 000000000000..58a879669592
--- /dev/null
+++ b/pkg/flashdb/patches/0002-64bit-fix.patch
@@ -0,0 +1,25 @@
+From e51bbd7efb1d01f052efef756a0a7423d7b8078a Mon Sep 17 00:00:00 2001
+From: Frederik Haxel <haxel@fzi.de>
+Date: Mon, 14 Aug 2023 17:26:11 +0200
+Subject: [PATCH] 64bit fix
+
+---
+ src/fdb_kvdb.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/fdb_kvdb.c b/src/fdb_kvdb.c
+index 393c463..7905fda 100644
+--- a/src/fdb_kvdb.c
++++ b/src/fdb_kvdb.c
+@@ -341,7 +341,7 @@ static fdb_err_t read_kv(fdb_kvdb_t db, fdb_kv_t kv)
+     kv->status = (fdb_kv_status_t) _fdb_get_status(kv_hdr.status_table, FDB_KV_STATUS_NUM);
+     kv->len = kv_hdr.len;
+ 
+-    if (kv->len == ~0UL || kv->len > db_max_size(db) || kv->len < KV_HDR_DATA_SIZE) {
++    if (kv->len == UINT32_MAX || kv->len > db_max_size(db) || kv->len < KV_HDR_DATA_SIZE) {
+         /* the KV length was not write, so reserved the info for current KV */
+         kv->len = KV_HDR_DATA_SIZE;
+         if (kv->status != FDB_KV_ERR_HDR) {
+-- 
+2.34.1
+
diff --git a/pkg/hacl/Kconfig b/pkg/hacl/Kconfig
index 162edb9b8cf9..e15e9e0e5d08 100644
--- a/pkg/hacl/Kconfig
+++ b/pkg/hacl/Kconfig
@@ -9,4 +9,4 @@ config PACKAGE_HACL
     bool "High Assurance Cryptographic Library package"
     depends on TEST_KCONFIG
     depends on MODULE_RANDOM
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
diff --git a/pkg/hacl/Makefile.dep b/pkg/hacl/Makefile.dep
index f9aabaca2e9e..4d3de698e326 100644
--- a/pkg/hacl/Makefile.dep
+++ b/pkg/hacl/Makefile.dep
@@ -1,4 +1,4 @@
 USEMODULE+=random
 
 # HACL is only supported by 32 bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/hacl/patches/0003-64-bit-fix.patch b/pkg/hacl/patches/0003-64-bit-fix.patch
new file mode 100644
index 000000000000..64be9a564c6a
--- /dev/null
+++ b/pkg/hacl/patches/0003-64-bit-fix.patch
@@ -0,0 +1,25 @@
+From 286677362a0f78f799e71e12614f72c02b007640 Mon Sep 17 00:00:00 2001
+From: Frederik Haxel <haxel@fzi.de>
+Date: Mon, 14 Aug 2023 17:32:51 +0200
+Subject: [PATCH] 64 bit fix
+
+---
+ haclnacl.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/haclnacl.c b/haclnacl.c
+index 072a2db..e7c25e7 100644
+--- a/haclnacl.c
++++ b/haclnacl.c
+@@ -149,7 +149,7 @@ int crypto_box(unsigned char *cipher, const unsigned char *msg, unsigned long lo
+   return crypto_box_easy(cipher, (unsigned char *)msg, msg_len - 32, (unsigned char *)nonce, (unsigned char *)pk, (unsigned char *)sk);
+ }
+ 
+-int crypto_box_open(uint8_t *msg, const uint8_t *cipher, uint64_t cipher_len, const uint8_t *nonce, const uint8_t *pk, const uint8_t *sk){
++int crypto_box_open(unsigned char *msg, const unsigned char *cipher, unsigned long long cipher_len, const unsigned char *nonce, const unsigned char *pk, const unsigned char *sk){
+   return crypto_box_open_easy(msg, cipher, cipher_len - 32, nonce, pk, sk);
+ }
+ 
+-- 
+2.34.1
+
diff --git a/pkg/jerryscript/Kconfig b/pkg/jerryscript/Kconfig
index c753a5882a65..9de6349ba5a6 100644
--- a/pkg/jerryscript/Kconfig
+++ b/pkg/jerryscript/Kconfig
@@ -8,7 +8,7 @@
 config PACKAGE_JERRYSCRIPT
     bool "Ultra-lightweight Javascript interpreter"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
 
     select MODULE_JERRYSCRIPT-PORT-DEFAULT
     select MODULE_JERRYSCRIPT-EXT
diff --git a/pkg/jerryscript/Makefile.dep b/pkg/jerryscript/Makefile.dep
index 6a37b67a1b85..5c9e84348354 100644
--- a/pkg/jerryscript/Makefile.dep
+++ b/pkg/jerryscript/Makefile.dep
@@ -2,4 +2,4 @@ USEMODULE += jerryscript-port-default
 USEMODULE += jerryscript-ext
 
 # Jerryscript is only supported by 32-bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/libhydrogen/Kconfig b/pkg/libhydrogen/Kconfig
index 5bace30062bd..a539125cda04 100644
--- a/pkg/libhydrogen/Kconfig
+++ b/pkg/libhydrogen/Kconfig
@@ -9,4 +9,4 @@ config PACKAGE_LIBHYDROGEN
     bool "LibHydrogen Crypto Library package"
     depends on TEST_KCONFIG
     depends on MODULE_RANDOM
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
diff --git a/pkg/libhydrogen/Makefile.dep b/pkg/libhydrogen/Makefile.dep
index caba98824efa..ba806eab6bce 100644
--- a/pkg/libhydrogen/Makefile.dep
+++ b/pkg/libhydrogen/Makefile.dep
@@ -3,4 +3,4 @@ USEMODULE += random
 # libhydrogen is only supported by 32 bit architectures
 # AVR boards: require avr-gcc >= 7.0 (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60040)
 # MSP430 boards: invalid alignment of 'hydro_random_context'
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/lorabasics/Makefile.dep b/pkg/lorabasics/Makefile.dep
index 08222d5ccd7c..afc70f28db57 100644
--- a/pkg/lorabasics/Makefile.dep
+++ b/pkg/lorabasics/Makefile.dep
@@ -7,5 +7,5 @@ ifneq (,$(filter lorabasics_sx1280_driver,$(USEMODULE)))
   USEMODULE += lorabasics_driver_sx1280_hal
 endif
 # This package has assumptions that only work for 32-bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
 USEMODULE += lorabasics_smtc_ral
diff --git a/pkg/lua/Kconfig b/pkg/lua/Kconfig
index 66422b3f26bb..925c5a62ab8b 100644
--- a/pkg/lua/Kconfig
+++ b/pkg/lua/Kconfig
@@ -8,7 +8,7 @@
 config PACKAGE_LUA
     bool "LUA language package"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
     depends on !HAS_ARCH_RISCV
     depends on !MODULE_PICOLIBC
 
diff --git a/pkg/lua/Makefile.dep b/pkg/lua/Makefile.dep
index d2cab70e557a..62104e0b47cf 100644
--- a/pkg/lua/Makefile.dep
+++ b/pkg/lua/Makefile.dep
@@ -3,7 +3,7 @@ USEMODULE += lua-contrib
 USEMODULE += printf_float
 
 # LUA is only supported by 32-bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
 
 # LUA is not supported on RISCV because of build issues with the toolchain
 # (undefined reference to _times, _unlink and _link functions in provided
diff --git a/pkg/lwip/Makefile.dep b/pkg/lwip/Makefile.dep
index 29a1089e9e11..5be5109d8ba9 100644
--- a/pkg/lwip/Makefile.dep
+++ b/pkg/lwip/Makefile.dep
@@ -1,6 +1,6 @@
 # lwIP's memory management doesn't seem to work on non 32-bit platforms at the
 # moment.
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
 
 DEFAULT_MODULE += auto_init_lwip
 
diff --git a/pkg/lwip/Makefile.include b/pkg/lwip/Makefile.include
index c2fac0ad53ab..f5292f97a69d 100644
--- a/pkg/lwip/Makefile.include
+++ b/pkg/lwip/Makefile.include
@@ -17,6 +17,11 @@ PSEUDOMODULES += lwip_udp
 PSEUDOMODULES += lwip_udplite
 PSEUDOMODULES += lwip_sock_async
 
+ifneq (,$(filter arch_64bit,$(FEATURES_USED)))
+# Required for platforms where sizeof(void*) > 4
+    CFLAGS += -DIPV6_FRAG_COPYHEADER=1
+endif
+
 ifneq (,$(filter lwip_contrib,$(USEMODULE)))
   DIRS += $(RIOTBASE)/pkg/lwip/contrib
 endif
diff --git a/pkg/micro-ecc/patches/0001-No-128-Bit-types-on-gcc.patch b/pkg/micro-ecc/patches/0001-No-128-Bit-types-on-gcc.patch
new file mode 100644
index 000000000000..182d0fc0e959
--- /dev/null
+++ b/pkg/micro-ecc/patches/0001-No-128-Bit-types-on-gcc.patch
@@ -0,0 +1,25 @@
+From ea5b0ba330ccf246317087e5eef4736c36b17158 Mon Sep 17 00:00:00 2001
+From: Leon Hielscher <Hielscher@fzi.de>
+Date: Mon, 8 Oct 2018 18:40:39 +0200
+Subject: [PATCH 4/4] No 128 Bit types on gcc.
+
+---
+ types.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/types.h b/types.h
+index 7cb1a28..0a0ff2d 100644
+--- a/types.h
++++ b/types.h
+@@ -51,7 +51,7 @@
+     #define uECC_WORD_SIZE 4
+ #endif
+ 
+-#if defined(__SIZEOF_INT128__) || ((__clang_major__ * 100 + __clang_minor__) >= 302)
++#if ((__clang_major__ * 100 + __clang_minor__) >= 302)
+     #define SUPPORTS_INT128 1
+ #else
+     #define SUPPORTS_INT128 0
+-- 
+2.7.4
+
diff --git a/pkg/micropython/patches/0001-Ensure-mp-int-and-uint-have-pointer-size.patch b/pkg/micropython/patches/0001-Ensure-mp-int-and-uint-have-pointer-size.patch
new file mode 100644
index 000000000000..13ee56b28155
--- /dev/null
+++ b/pkg/micropython/patches/0001-Ensure-mp-int-and-uint-have-pointer-size.patch
@@ -0,0 +1,35 @@
+From 9333396d68f328b84a973757fd36522aec74a0f5 Mon Sep 17 00:00:00 2001
+From: Leon Hielscher <hielscher@fzi.de>
+Date: Tue, 11 Aug 2020 23:58:10 +0200
+Subject: [PATCH 1/2] Ensure mp int and uint have pointer size.
+
+---
+ ports/riot/mpconfigport.h | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/ports/riot/mpconfigport.h b/ports/riot/mpconfigport.h
+index d02e96653..0387ea597 100644
+--- a/ports/riot/mpconfigport.h
++++ b/ports/riot/mpconfigport.h
+@@ -24,6 +24,7 @@
+  * THE SOFTWARE.
+  */
+ #include <stdlib.h>
++#include <stdint.h>
+ 
+ #include "irq.h"
+ 
+@@ -96,8 +97,8 @@
+ 
+ #define MICROPY_MODULE_FROZEN_STR       (1)
+ 
+-typedef int mp_int_t;       // must be pointer size
+-typedef unsigned mp_uint_t; // must be pointer size
++typedef intptr_t mp_int_t;       // must be pointer size
++typedef uintptr_t mp_uint_t; // must be pointer size
+ typedef long mp_off_t;
+ 
+ #define MICROPY_BEGIN_ATOMIC_SECTION()     irq_disable()
+-- 
+2.17.1
+
diff --git a/pkg/micropython/patches/0002-Use-proper-function-signatures.patch b/pkg/micropython/patches/0002-Use-proper-function-signatures.patch
new file mode 100644
index 000000000000..6aa3c34606a0
--- /dev/null
+++ b/pkg/micropython/patches/0002-Use-proper-function-signatures.patch
@@ -0,0 +1,39 @@
+From 623283c16cf22a808f0d37832d91cb596f9401c4 Mon Sep 17 00:00:00 2001
+From: Leon Hielscher <hielscher@fzi.de>
+Date: Wed, 12 Aug 2020 00:12:18 +0200
+Subject: [PATCH 2/2] Use proper function signatures.
+
+---
+ ports/riot/help.c    | 2 +-
+ ports/riot/mp_riot.c | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/ports/riot/help.c b/ports/riot/help.c
+index a39877925..c83acb001 100644
+--- a/ports/riot/help.c
++++ b/ports/riot/help.c
+@@ -52,7 +52,7 @@ STATIC void pyb_help_print_info_about_object(mp_obj_t name_o, mp_obj_t value) {
+     printf("\n");
+ }
+ 
+-STATIC mp_obj_t pyb_help(uint n_args, const mp_obj_t *args) {
++STATIC mp_obj_t pyb_help(size_t n_args, const mp_obj_t *args) {
+     if (n_args == 0) {
+         // print a general help message
+         printf("%s", help_text);
+diff --git a/ports/riot/mp_riot.c b/ports/riot/mp_riot.c
+index e339da26c..d87fa416d 100644
+--- a/ports/riot/mp_riot.c
++++ b/ports/riot/mp_riot.c
+@@ -60,7 +60,7 @@ mp_import_stat_t mp_import_stat(const char *path) {
+     return MP_IMPORT_STAT_NO_EXIST;
+ }
+ 
+-mp_obj_t mp_builtin_open(uint n_args, const mp_obj_t *args, mp_map_t *kwargs) {
++mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
+     puts("mp_builtin_open() stub");
+     return mp_const_none;
+ }
+-- 
+2.17.1
+
diff --git a/pkg/monocypher/Kconfig b/pkg/monocypher/Kconfig
index 689fbe732f63..ea4992eaa4a2 100644
--- a/pkg/monocypher/Kconfig
+++ b/pkg/monocypher/Kconfig
@@ -8,7 +8,7 @@
 config PACKAGE_MONOCYPHER
     bool "Monocypher high performance cryptographic library package"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
     select MODULE_MONOCYPHER_OPTIONAL
     help
         Provides functions for authenticated encryption, hashing,
diff --git a/pkg/monocypher/Makefile.dep b/pkg/monocypher/Makefile.dep
index 21096b0b43e8..be8438f94735 100644
--- a/pkg/monocypher/Makefile.dep
+++ b/pkg/monocypher/Makefile.dep
@@ -2,4 +2,4 @@
 USEMODULE += monocypher_optional
 
 # monocypher is only supported by 32 bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/qcbor/Kconfig b/pkg/qcbor/Kconfig
index 016dbb926458..6ed49ee5cdf1 100644
--- a/pkg/qcbor/Kconfig
+++ b/pkg/qcbor/Kconfig
@@ -8,4 +8,4 @@
 config PACKAGE_QCBOR
     bool "QCBOR CBOR encoder/decoder"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
diff --git a/pkg/qcbor/Makefile.dep b/pkg/qcbor/Makefile.dep
index bdbbad5895f4..ddb8a6ad1db1 100644
--- a/pkg/qcbor/Makefile.dep
+++ b/pkg/qcbor/Makefile.dep
@@ -1 +1 @@
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/tinycbor/Kconfig b/pkg/tinycbor/Kconfig
index b63d52e830a7..5b2778b30000 100644
--- a/pkg/tinycbor/Kconfig
+++ b/pkg/tinycbor/Kconfig
@@ -8,7 +8,7 @@
 menuconfig PACKAGE_TINYCBOR
     bool "Tiny CBOR encode/decoder package"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
     help
         TinyCBOR is a CBOR encoder and decoder with a very small
         footprint, optimized for very fast operation.
diff --git a/pkg/tinycbor/Makefile.dep b/pkg/tinycbor/Makefile.dep
index 10f81a15ca01..b33f081360c3 100644
--- a/pkg/tinycbor/Makefile.dep
+++ b/pkg/tinycbor/Makefile.dep
@@ -1,2 +1,2 @@
 # tinycbor is only supported by 32 bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/tinycrypt/Kconfig b/pkg/tinycrypt/Kconfig
index afbaf3c56036..e0e7a90c12e3 100644
--- a/pkg/tinycrypt/Kconfig
+++ b/pkg/tinycrypt/Kconfig
@@ -8,4 +8,4 @@
 config PACKAGE_TINYCRYPT
     bool "TinyCrypt crypto library package"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
diff --git a/pkg/tinycrypt/Makefile.dep b/pkg/tinycrypt/Makefile.dep
index bdbbad5895f4..ddb8a6ad1db1 100644
--- a/pkg/tinycrypt/Makefile.dep
+++ b/pkg/tinycrypt/Makefile.dep
@@ -1 +1 @@
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/tinydtls/patches/0002-fix-printf-warning-for-64-bit-systems.patch b/pkg/tinydtls/patches/0002-fix-printf-warning-for-64-bit-systems.patch
new file mode 100644
index 000000000000..97569bc6428b
--- /dev/null
+++ b/pkg/tinydtls/patches/0002-fix-printf-warning-for-64-bit-systems.patch
@@ -0,0 +1,27 @@
+From df0fd3c00918f1698a87c2786590dcd097ee0625 Mon Sep 17 00:00:00 2001
+From: Frederik Haxel <haxel@fzi.de>
+Date: Mon, 14 Aug 2023 09:54:35 +0200
+Subject: [PATCH] Fix printf warning for 64 bit systems
+
+---
+ dtls_debug.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/dtls_debug.h b/dtls_debug.h
+index 5b58acb..3bf04f0 100644
+--- a/dtls_debug.h
++++ b/dtls_debug.h
+@@ -139,8 +139,8 @@ void dtls_dsrv_log_addr(log_t level, const char *name, const session_t *addr);
+ #define dtls_notice(...) LOG_INFO(__VA_ARGS__)
+ #define dtls_info(...) LOG_INFO(__VA_ARGS__)
+ #define dtls_debug(...) LOG_DEBUG(__VA_ARGS__)
+-#define dtls_debug_hexdump(name, buf, length) { if (LOG_DEBUG <= LOG_LEVEL) { LOG_DEBUG("-= %s (%zu bytes) =-\n", name, length); od_hex_dump(buf, length, 0); }}
+-#define dtls_debug_dump(name, buf, length) { if (LOG_DEBUG <= LOG_LEVEL) { LOG_DEBUG("%s (%zu bytes):", name, length); od_hex_dump(buf, length, 0); }}
++#define dtls_debug_hexdump(name, buf, length) { if (LOG_DEBUG <= LOG_LEVEL) { LOG_DEBUG("-= %s (%zu bytes) =-\n", name, (size_t) length); od_hex_dump(buf, length, 0); }}
++#define dtls_debug_dump(name, buf, length) { if (LOG_DEBUG <= LOG_LEVEL) { LOG_DEBUG("%s (%zu bytes):", name, (size_t) length); od_hex_dump(buf, length, 0); }}
+ #else /* neither RIOT nor Zephyr */
+ #define dtls_emerg(...) dsrv_log(DTLS_LOG_EMERG, __VA_ARGS__)
+ #define dtls_alert(...) dsrv_log(DTLS_LOG_ALERT, __VA_ARGS__)
+-- 
+2.34.1
+
diff --git a/pkg/tinyusb/Kconfig b/pkg/tinyusb/Kconfig
index 22bf0bf29ac4..1d35b34855eb 100644
--- a/pkg/tinyusb/Kconfig
+++ b/pkg/tinyusb/Kconfig
@@ -32,7 +32,7 @@ choice USB_IMPLEMENTATION
 menuconfig PACKAGE_TINYUSB
     bool "TinyUSB stack package"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
     depends on HAS_TINYUSB_DEVICE || HAS_TINYUSB_HOST
     select MODULE_FMT
     select MODULE_LUID
diff --git a/pkg/tlsf/Kconfig b/pkg/tlsf/Kconfig
index 56392395c2a4..f6b34d41b2f4 100644
--- a/pkg/tlsf/Kconfig
+++ b/pkg/tlsf/Kconfig
@@ -8,7 +8,7 @@
 menuconfig PACKAGE_TLSF
     bool "TLFS malloc/realloc/free/etc package"
     depends on TEST_KCONFIG
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
     help
         TLSF provides an implementation of malloc/realloc/free/etc.
 
diff --git a/pkg/tlsf/Makefile.dep b/pkg/tlsf/Makefile.dep
index 3ca354f82c8c..448c5d76a545 100644
--- a/pkg/tlsf/Makefile.dep
+++ b/pkg/tlsf/Makefile.dep
@@ -9,4 +9,4 @@ ifneq (,$(filter tlsf-malloc,$(USEMODULE)))
 endif
 
 # tlsf is not compatible with 8bit and 16bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/uwb-dw1000/Kconfig b/pkg/uwb-dw1000/Kconfig
index 539e7d9a1890..fa3cc8f2af03 100644
--- a/pkg/uwb-dw1000/Kconfig
+++ b/pkg/uwb-dw1000/Kconfig
@@ -14,7 +14,7 @@ menuconfig PACKAGE_UWB-DW1000
     select MODULE_PERIPH_GPIO_IRQ
     depends on HAS_PERIPH_SPI
     select MODULE_PERIPH_SPI
-    depends on HAS_ARCH_32BIT
+    depends on HAS_ARCH_32BIT || HAS_ARCH_64BIT
 
 if PACKAGE_UWB-DW1000
 
diff --git a/pkg/uwb-dw1000/Makefile.dep b/pkg/uwb-dw1000/Makefile.dep
index 2f7e3f9ec427..5ea65c36dc87 100644
--- a/pkg/uwb-dw1000/Makefile.dep
+++ b/pkg/uwb-dw1000/Makefile.dep
@@ -7,4 +7,4 @@ FEATURES_REQUIRED += periph_gpio_irq
 FEATURES_REQUIRED += periph_spi
 
 # Some of the pkg operation would overflow on 16bit
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/wamr/Makefile b/pkg/wamr/Makefile
index 07ebcabf28c9..ca9f8fc7f2e4 100644
--- a/pkg/wamr/Makefile
+++ b/pkg/wamr/Makefile
@@ -24,13 +24,17 @@ CFLAGS += -Wno-cast-function-type
 RIOT_INCLUDES = $(filter-out -%,$(subst -I,,$(INCLUDES)))
 
 #translate (CPU_ARCH) to Build Target
-#WAMR_BUILD_TARGET is "X86_32" "AARCH64[sub]", "ARM[sub]",
+#WAMR_BUILD_TARGET is "X86_32", "X86_64", "AARCH64[sub]", "ARM[sub]",
 #                     "THUMB[sub]", "XTENSA"
 #no msp430, no AVR support for now
 
 ifeq ($(CPU),native)
 ifeq ($(findstring x86,$(OS_ARCH)),x86)
+ifneq ($(NATIVE_64BIT), y)
   WAMR_BUILD_TARGET = X86_32
+else
+  WAMR_BUILD_TARGET = X86_64
+endif
 endif
 ifeq ($(findstring arm,$(OS_ARCH)),arm)
   WAMR_BUILD_TARGET = ARM
diff --git a/pkg/wolfssl/Makefile.dep b/pkg/wolfssl/Makefile.dep
index f4262b024274..9aff99de461b 100644
--- a/pkg/wolfssl/Makefile.dep
+++ b/pkg/wolfssl/Makefile.dep
@@ -91,4 +91,4 @@ ifneq (,$(filter native,$(CPU)))
 endif
 
 # wolfssl is only supported by 32 bit architectures
-FEATURES_REQUIRED += arch_32bit
+FEATURES_REQUIRED_ANY += arch_32bit|arch_64bit
diff --git a/pkg/wolfssl/include/user_settings.h b/pkg/wolfssl/include/user_settings.h
index 79f58f2aca97..b2602ce829d8 100644
--- a/pkg/wolfssl/include/user_settings.h
+++ b/pkg/wolfssl/include/user_settings.h
@@ -73,7 +73,7 @@ extern "C" {
 #endif
 
 /* defined somewhere else */
-int strncasecmp(const char *s1, const char * s2, unsigned int sz);
+int strncasecmp(const char *s1, const char * s2, size_t sz);
 
 #define SINGLE_THREADED
 
diff --git a/pkg/wolfssl/sock_tls/sock_tls.c b/pkg/wolfssl/sock_tls/sock_tls.c
index 37bcbaf7547e..3e170cccfbef 100644
--- a/pkg/wolfssl/sock_tls/sock_tls.c
+++ b/pkg/wolfssl/sock_tls/sock_tls.c
@@ -85,7 +85,7 @@ void sock_dtls_session_destroy(sock_tls_t *sk)
 #endif
 
 #include <ctype.h>
-int strncasecmp(const char *s1, const char * s2, unsigned int sz)
+int strncasecmp(const char *s1, const char * s2, size_t sz)
 {
     unsigned int i;
     for( i = 0; i < sz; i++) {