diff --git a/ci/shell.nix b/ci/shell.nix
index f90b29130bc..09c879280cd 100644
--- a/ci/shell.nix
+++ b/ci/shell.nix
@@ -155,6 +155,7 @@ stdenvNoCC.mkDerivation ({
     shellcheck
     gdb
     openocd-stm
+    kcachegrind
   ] ++ lib.optionals (devTools && acceptJlink) [
     nrfutil
     nrfconnect
diff --git a/core/Makefile b/core/Makefile
index c63a07a93f1..6340cc5c77e 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -9,7 +9,6 @@ JOBS = $(shell sysctl -n hw.perflevel0.physicalcpu 2>/dev/null ||\
                nproc                               2>/dev/null ||\
                echo 4)
 MAKE = make -j $(JOBS)
-SCONS = scons -Q -j $(JOBS)
 
 BUILD_DIR             = build
 BOARDLOADER_BUILD_DIR = $(BUILD_DIR)/boardloader
@@ -40,6 +39,8 @@ PYTEST_TIMEOUT ?= 500
 TEST_LANG ?= "en"
 NEW_RENDERING ?= 1
 THP ?= 0
+TREZOR_EMULATOR_DEBUGGABLE ?= 0
+QUIET_MODE ?= 0
 
 # OpenOCD interface default. Alternative: ftdi/olimex-arm-usb-tiny-h
 OPENOCD_INTERFACE ?= stlink
@@ -124,6 +125,30 @@ RUST_TARGET=$(shell rustc -vV | sed -n 's/host: //p')
 
 MULTICORE ?= "auto"
 
+SCONS_VARS = \
+	BITCOIN_ONLY="$(BITCOIN_ONLY)" \
+	BOOTLOADER_DEVEL="$(BOOTLOADER_DEVEL)" \
+	BOOTLOADER_QA="$(BOOTLOADER_QA)" \
+	CFLAGS="$(CFLAGS)" \
+	CMAKELISTS="$(CMAKELISTS)" \
+	DISABLE_OPTIGA="$(DISABLE_OPTIGA)" \
+	NEW_RENDERING="$(NEW_RENDERING)" \
+	PRODUCTION="$(PRODUCTION)" \
+	PYOPT="$(PYOPT)" \
+	THP="$(THP)" \
+	TREZOR_EMULATOR_ASAN="$(ADDRESS_SANITIZER)" \
+	TREZOR_EMULATOR_DEBUGGABLE=$(TREZOR_EMULATOR_DEBUGGABLE) \
+	TREZOR_MEMPERF="$(TREZOR_MEMPERF)" \
+	TREZOR_MODEL="$(TREZOR_MODEL)" \
+	QUIET_MODE="$(QUIET_MODE)"
+
+SCONS_OPTS = -Q -j $(JOBS)
+ifeq ($(QUIET_MODE),1)
+SCONS_OPTS += --quiet
+endif
+
+SCONS = scons $(SCONS_OPTS) $(SCONS_VARS)
+
 ## help commands:
 
 help: ## show this help
@@ -244,68 +269,43 @@ build: build_boardloader build_bootloader build_firmware build_prodtest build_un
 build_embed: build_boardloader build_bootloader build_firmware # build boardloader, bootloader, firmware
 
 build_boardloader: ## build boardloader
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" TREZOR_MODEL="$(TREZOR_MODEL)" \
-		CMAKELISTS="$(CMAKELISTS)" NEW_RENDERING="$(NEW_RENDERING)" $(BOARDLOADER_BUILD_DIR)/boardloader.bin
+	$(SCONS) $(BOARDLOADER_BUILD_DIR)/boardloader.bin
 
 build_bootloader: ## build bootloader
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" TREZOR_MODEL="$(TREZOR_MODEL)" \
-		CMAKELISTS="$(CMAKELISTS)" BOOTLOADER_QA="$(BOOTLOADER_QA)" BOOTLOADER_DEVEL="$(BOOTLOADER_DEVEL)" \
-		NEW_RENDERING="$(NEW_RENDERING)" $(BOOTLOADER_BUILD_DIR)/bootloader.bin
+	$(SCONS) $(BOOTLOADER_BUILD_DIR)/bootloader.bin
 
 build_bootloader_ci: ## build CI device testing bootloader
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" TREZOR_MODEL="$(TREZOR_MODEL)" \
-		CMAKELISTS="$(CMAKELISTS)" $(BOOTLOADER_CI_BUILD_DIR)/bootloader.bin
+	$(SCONS) $(BOOTLOADER_CI_BUILD_DIR)/bootloader.bin
 
 build_bootloader_emu: ## build the unix bootloader emulator
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" TREZOR_MODEL="$(TREZOR_MODEL)" \
-	CMAKELISTS="$(CMAKELISTS)" NEW_RENDERING="$(NEW_RENDERING)" $(BOOTLOADER_EMU_BUILD_DIR)/bootloader.elf
+	$(SCONS) $(BOOTLOADER_EMU_BUILD_DIR)/bootloader.elf
 
 build_bootloader_emu_debug: ## build the unix bootloader emulator
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" TREZOR_MODEL="$(TREZOR_MODEL)" \
-	CMAKELISTS="$(CMAKELISTS)" NEW_RENDERING="$(NEW_RENDERING)" TREZOR_EMULATOR_DEBUGGABLE=1 \
-	$(BOOTLOADER_EMU_BUILD_DIR)/bootloader.elf
+	$(SCONS) TREZOR_EMULATOR_DEBUGGABLE=1 $(BOOTLOADER_EMU_BUILD_DIR)/bootloader.elf
 
 build_prodtest: ## build production test firmware
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" TREZOR_MODEL="$(TREZOR_MODEL)" \
-		CMAKELISTS="$(CMAKELISTS)" BOOTLOADER_DEVEL="$(BOOTLOADER_DEVEL)" $(PRODTEST_BUILD_DIR)/prodtest.bin
+	$(SCONS) $(PRODTEST_BUILD_DIR)/prodtest.bin
 
 build_reflash: ## build reflash firmware + reflash image
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" TREZOR_MODEL="$(TREZOR_MODEL)" \
-		CMAKELISTS="$(CMAKELISTS)" NEW_RENDERING="$(NEW_RENDERING)" $(REFLASH_BUILD_DIR)/reflash.bin
+	$(SCONS) $(REFLASH_BUILD_DIR)/reflash.bin
 	dd if=build/boardloader/boardloader.bin of=$(REFLASH_BUILD_DIR)/sdimage.bin bs=1 seek=0
 	dd if=build/bootloader/bootloader.bin of=$(REFLASH_BUILD_DIR)/sdimage.bin bs=1 seek=49152
 
 build_kernel: ## build kernel image
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" \
-		TREZOR_MODEL="$(TREZOR_MODEL)"  CMAKELISTS="$(CMAKELISTS)" \
-		BOOTLOADER_QA="$(BOOTLOADER_QA)" BOOTLOADER_DEVEL="$(BOOTLOADER_DEVEL)" \
-		$(KERNEL_BUILD_DIR)/kernel.bin
+	$(SCONS) $(KERNEL_BUILD_DIR)/kernel.bin
 
 build_firmware: templates build_cross build_kernel ## build firmware with frozen modules
-	$(SCONS) CFLAGS="$(CFLAGS)" PRODUCTION="$(PRODUCTION)" \
-		TREZOR_MODEL="$(TREZOR_MODEL)" CMAKELISTS="$(CMAKELISTS)" \
-		PYOPT="$(PYOPT)" BITCOIN_ONLY="$(BITCOIN_ONLY)" \
-		BOOTLOADER_QA="$(BOOTLOADER_QA)" BOOTLOADER_DEVEL="$(BOOTLOADER_DEVEL)" \
-		DISABLE_OPTIGA="$(DISABLE_OPTIGA)" THP="$(THP)" NEW_RENDERING="$(NEW_RENDERING)" \
-		$(FIRMWARE_BUILD_DIR)/firmware.bin
+	$(SCONS) $(FIRMWARE_BUILD_DIR)/firmware.bin
 
 build_unix: templates ## build unix port
-	$(SCONS) CFLAGS="$(CFLAGS)" $(UNIX_BUILD_DIR)/trezor-emu-core $(UNIX_PORT_OPTS) \
-		TREZOR_MODEL="$(TREZOR_MODEL)" CMAKELISTS="$(CMAKELISTS)" THP="$(THP)" \
-		PYOPT="0" BITCOIN_ONLY="$(BITCOIN_ONLY)" TREZOR_EMULATOR_ASAN="$(ADDRESS_SANITIZER)" \
-		NEW_RENDERING="$(NEW_RENDERING)"
+	$(SCONS) $(UNIX_BUILD_DIR)/trezor-emu-core $(UNIX_PORT_OPTS)
 
 build_unix_frozen: templates build_cross ## build unix port with frozen modules
-	$(SCONS) CFLAGS="$(CFLAGS)" $(UNIX_BUILD_DIR)/trezor-emu-core $(UNIX_PORT_OPTS) \
-		TREZOR_MODEL="$(TREZOR_MODEL)" CMAKELISTS="$(CMAKELISTS)" \
-		PYOPT="$(PYOPT)" BITCOIN_ONLY="$(BITCOIN_ONLY)" TREZOR_EMULATOR_ASAN="$(ADDRESS_SANITIZER)" \
-		TREZOR_MEMPERF="$(TREZOR_MEMPERF)" TREZOR_EMULATOR_FROZEN=1 NEW_RENDERING="$(NEW_RENDERING)"
+	$(SCONS) $(UNIX_BUILD_DIR)/trezor-emu-core $(UNIX_PORT_OPTS) TREZOR_EMULATOR_FROZEN=1
 
 build_unix_debug: templates ## build unix port
-	$(SCONS) --max-drift=1 CFLAGS="$(CFLAGS)" $(UNIX_BUILD_DIR)/trezor-emu-core $(UNIX_PORT_OPTS) \
-		TREZOR_MODEL="$(TREZOR_MODEL)" CMAKELISTS="$(CMAKELISTS)" \
-		BITCOIN_ONLY="$(BITCOIN_ONLY)" TREZOR_EMULATOR_ASAN=1 TREZOR_EMULATOR_DEBUGGABLE=1 \
-		NEW_RENDERING="$(NEW_RENDERING)"
+	$(SCONS) --max-drift=1 $(UNIX_BUILD_DIR)/trezor-emu-core $(UNIX_PORT_OPTS) \
+		TREZOR_EMULATOR_ASAN=1 TREZOR_EMULATOR_DEBUGGABLE=1
 
 build_cross: ## build mpy-cross port
 	$(MAKE) -C vendor/micropython/mpy-cross $(CROSS_PORT_OPTS)
diff --git a/core/SConscript.boardloader b/core/SConscript.boardloader
index 3e2511f47b8..a700d40207a 100644
--- a/core/SConscript.boardloader
+++ b/core/SConscript.boardloader
@@ -84,10 +84,12 @@ else:
 
 
 env = Environment(ENV=os.environ,
-     CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')),
-     CONSTRAINTS=["limited_util_s"],
-     CPPDEFINES_IMPLICIT=[]
- )
+    CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')),
+    CONSTRAINTS=["limited_util_s"],
+    CPPDEFINES_IMPLICIT=[],
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
+)
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_HAL, PATH_HAL)
 
diff --git a/core/SConscript.bootloader b/core/SConscript.bootloader
index 0c05e7838de..d9c0262b961 100644
--- a/core/SConscript.bootloader
+++ b/core/SConscript.bootloader
@@ -1,6 +1,7 @@
 # pylint: disable=E0602
 
 import os
+import shlex
 import tools, models, ui
 
 TREZOR_MODEL = ARGUMENTS.get('TREZOR_MODEL', 'T')
@@ -109,7 +110,9 @@ ui.init_ui(TREZOR_MODEL, "bootloader", CPPDEFINES_MOD, SOURCE_MOD, RUST_UI_FEATU
 env = Environment(
     ENV=os.environ,
     CFLAGS=f"{ARGUMENTS.get('CFLAGS', '')} -DPRODUCTION={int(PRODUCTION)} -DBOOTLOADER_QA={int(BOOTLOADER_QA)}",
-    CPPDEFINES_IMPLICIT=[]
+    CPPDEFINES_IMPLICIT=[],
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
     )
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_HAL, PATH_HAL)
@@ -232,7 +235,7 @@ def cargo_build():
     bindgen_macros = tools.get_bindgen_defines(env.get("CPPDEFINES"), ALLPATHS)
     build_dir = str(Dir('.').abspath)
 
-    return f'export BINDGEN_MACROS=\'{bindgen_macros}\'; export BUILD_DIR=\'{build_dir}\'; cd embed/rust; cargo build {profile} ' + ' '.join(cargo_opts)
+    return f'export BINDGEN_MACROS={shlex.quote(bindgen_macros)}; export BUILD_DIR=\'{build_dir}\'; cd embed/rust; cargo build {profile} ' + ' '.join(cargo_opts)
 
 rust = env.Command(
     target=RUST_LIBPATH,
diff --git a/core/SConscript.bootloader_ci b/core/SConscript.bootloader_ci
index 3e11207dcda..58eadb5b62c 100644
--- a/core/SConscript.bootloader_ci
+++ b/core/SConscript.bootloader_ci
@@ -101,9 +101,12 @@ SOURCE_NANOPB = [
 ui.init_ui(TREZOR_MODEL, "bootloader", CPPDEFINES_MOD, SOURCE_MOD, RUST_UI_FEATURES)
 
 env = Environment(
-    ENV=os.environ, CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')),
-    CPPDEFINES_IMPLICIT=[]
-    )
+    ENV=os.environ,
+    CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')),
+    CPPDEFINES_IMPLICIT=[],
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
+)
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_HAL, PATH_HAL)
 
diff --git a/core/SConscript.bootloader_emu b/core/SConscript.bootloader_emu
index f2c3d770fd2..c8886df84b4 100644
--- a/core/SConscript.bootloader_emu
+++ b/core/SConscript.bootloader_emu
@@ -1,6 +1,7 @@
 # pylint: disable=E0602
 
 import os
+import shlex
 import tools, models, ui
 
 TREZOR_MODEL = ARGUMENTS.get('TREZOR_MODEL', 'T')
@@ -151,7 +152,12 @@ SOURCE_UNIX = [
 
 ui.init_ui(TREZOR_MODEL, "bootloader", CPPDEFINES_MOD, SOURCE_MOD, RUST_UI_FEATURES)
 
-env = Environment(ENV=os.environ, CFLAGS='%s -DCONFIDENTIAL= -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')))
+env = Environment(
+    ENV=os.environ,
+    CFLAGS=ARGUMENTS.get('CFLAGS', '') + f" -DCONFIDENTIAL= -DPRODUCTION={ARGUMENTS.get('PRODUCTION', '0')}",
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
+)
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_UNIX, PATH_HAL)
 
@@ -261,7 +267,7 @@ def cargo_build():
     bindgen_macros = tools.get_bindgen_defines(env.get("CPPDEFINES"), ALLPATHS)
     build_dir = str(Dir('.').abspath)
 
-    return f'export BINDGEN_MACROS=\'{bindgen_macros}\'; export BUILD_DIR=\'{build_dir}\'; cd embed/rust; cargo build --profile {RUST_PROFILE} ' + ' '.join(cargo_opts)
+    return f'export BINDGEN_MACROS={shlex.quote(bindgen_macros)}; export BUILD_DIR=\'{build_dir}\'; cd embed/rust; cargo build --profile {RUST_PROFILE} ' + ' '.join(cargo_opts)
 
 rust = env.Command(
     target=RUST_LIBPATH,
diff --git a/core/SConscript.firmware b/core/SConscript.firmware
index 63744c2bdc4..c6e74884188 100644
--- a/core/SConscript.firmware
+++ b/core/SConscript.firmware
@@ -2,6 +2,7 @@
 # fmt: off
 
 import os
+import shlex
 import tools, models, ui
 
 BITCOIN_ONLY = ARGUMENTS.get('BITCOIN_ONLY', '0')
@@ -383,7 +384,9 @@ SOURCE_QSTR = SOURCE_MOD + SOURCE_MICROPYTHON + SOURCE_MICROPYTHON_SPEED
 env = Environment(
     ENV=os.environ,
     CFLAGS=f"{ARGUMENTS.get('CFLAGS', '')} -DPRODUCTION={int(PRODUCTION)} -DPYOPT={PYOPT} -DBOOTLOADER_QA={int(BOOTLOADER_QA)} -DBITCOIN_ONLY={BITCOIN_ONLY}",
-    CPPDEFINES_IMPLICIT=[]
+    CPPDEFINES_IMPLICIT=[],
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
     )
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_HAL, PATH_HAL)
@@ -766,7 +769,7 @@ def cargo_build():
     bindgen_macros = tools.get_bindgen_defines(env.get("CPPDEFINES"), ALLPATHS)
     build_dir = str(Dir('.').abspath)
 
-    return f'export BINDGEN_MACROS=\'{bindgen_macros}\'; export BUILD_DIR=\'{build_dir}\'; cd embed/rust; cargo build {profile} ' + ' '.join(cargo_opts)
+    return f'export BINDGEN_MACROS={shlex.quote(bindgen_macros)}; export BUILD_DIR=\'{build_dir}\'; cd embed/rust; cargo build {profile} ' + ' '.join(cargo_opts)
 
 rust = env.Command(
     target=RUST_LIBPATH,
diff --git a/core/SConscript.kernel b/core/SConscript.kernel
index 61598225ee7..a761836beed 100644
--- a/core/SConscript.kernel
+++ b/core/SConscript.kernel
@@ -262,8 +262,10 @@ if THP:
 env = Environment(
     ENV=os.environ,
     CFLAGS=f"{ARGUMENTS.get('CFLAGS', '')} -DPRODUCTION={int(PRODUCTION)} -DPYOPT={PYOPT} -DBOOTLOADER_QA={int(BOOTLOADER_QA)} -DBITCOIN_ONLY={BITCOIN_ONLY}",
-    CPPDEFINES_IMPLICIT=[]
-    )
+    CPPDEFINES_IMPLICIT=[],
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
+)
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_HAL, PATH_HAL)
 
diff --git a/core/SConscript.prodtest b/core/SConscript.prodtest
index 0fafdc09286..a5c609d7add 100644
--- a/core/SConscript.prodtest
+++ b/core/SConscript.prodtest
@@ -101,7 +101,10 @@ ui.init_ui(TREZOR_MODEL, "prodtest", CPPDEFINES_MOD, SOURCE_MOD, RUST_UI_FEATURE
 env = Environment(
     ENV=os.environ,
     CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')),
-    CPPDEFINES_IMPLICIT=[])
+    CPPDEFINES_IMPLICIT=[],
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
+)
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_HAL, PATH_HAL)
 
diff --git a/core/SConscript.reflash b/core/SConscript.reflash
index 1309f58d443..f4aad6f0612 100644
--- a/core/SConscript.reflash
+++ b/core/SConscript.reflash
@@ -87,8 +87,10 @@ ui.init_ui(TREZOR_MODEL, "prodtest", CPPDEFINES_MOD, SOURCE_MOD, RUST_UI_FEATURE
 env = Environment(
     ENV=os.environ,
     CFLAGS='%s -DPRODUCTION=%s' % (ARGUMENTS.get('CFLAGS', ''), ARGUMENTS.get('PRODUCTION', '0')),
-    CPPDEFINES_IMPLICIT=[]
-    )
+    CPPDEFINES_IMPLICIT=[],
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
+)
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_HAL, PATH_HAL)
 
diff --git a/core/SConscript.unix b/core/SConscript.unix
index c23bad1fdb7..2a70f2f60ea 100644
--- a/core/SConscript.unix
+++ b/core/SConscript.unix
@@ -2,6 +2,7 @@
 # fmt: off
 
 import os
+import shlex
 import tools, models, ui
 
 BITCOIN_ONLY = ARGUMENTS.get('BITCOIN_ONLY', '0')
@@ -437,7 +438,12 @@ if PYOPT == '0' or not FROZEN:
 else:
     STATIC=""
 
-env = Environment(ENV=os.environ, CFLAGS='%s -DCONFIDENTIAL= -DPYOPT=%s -DBITCOIN_ONLY=%s %s' % (ARGUMENTS.get('CFLAGS', ''), PYOPT, BITCOIN_ONLY, STATIC))
+env = Environment(
+    ENV=os.environ,
+    CFLAGS=ARGUMENTS.get("CFLAGS", "") + f" -DCONFIDENTIAL= -DPYOPT={PYOPT} -DBITCOIN_ONLY={BITCOIN_ONLY} {STATIC}",
+    CPPDEFPREFIX="-D'",
+    CPPDEFSUFFIX="'",
+)
 
 FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_UNIX, PATH_HAL)
 
@@ -495,7 +501,7 @@ if ARGUMENTS.get('TREZOR_EMULATOR_DEBUGGABLE', '0') == '1':
 
 if ARGUMENTS.get('TREZOR_MEMPERF', '0') == '1':
     CPPDEFINES_MOD += [
-        ('MICROPY_TREZOR_MEMPERF', '\(1\)')
+        ('MICROPY_TREZOR_MEMPERF', '(1)')
     ]
 
 env.Replace(
@@ -525,7 +531,7 @@ env.Replace(
     CPPDEFINES=[
         'TREZOR_EMULATOR',
         'TREZOR_MODEL_'+TREZOR_MODEL,
-        ('MP_CONFIGFILE', '\\"embed/unix/mpconfigport.h\\"'),
+        ('MP_CONFIGFILE', '"embed/unix/mpconfigport.h"'),
         ui.get_ui_layout(TREZOR_MODEL),
     ] + CPPDEFINES_MOD + CPPDEFINES_HAL,
     ASPPFLAGS='$CFLAGS $CCFLAGS', )
@@ -835,7 +841,7 @@ def cargo_build():
     bindgen_macros = tools.get_bindgen_defines(env.get("CPPDEFINES"), ALLPATHS)
     build_dir = str(Dir('.').abspath)
 
-    return f'export BINDGEN_MACROS=\'{bindgen_macros}\'; export BUILD_DIR=\'{build_dir}\'; cd embed/rust; cargo build --profile {RUST_PROFILE} --target-dir=../../build/unix/rust --no-default-features --features "{" ".join(features)}"  --target {TARGET}'
+    return f'export BINDGEN_MACROS={shlex.quote(bindgen_macros)}; export BUILD_DIR=\'{build_dir}\'; cd embed/rust; cargo build --profile {RUST_PROFILE} --target-dir=../../build/unix/rust --no-default-features --features "{" ".join(features)}"  --target {TARGET}'
 
 rust = env.Command(
     target=RUST_LIBPATH,
diff --git a/core/SConstruct b/core/SConstruct
index 6446691cf3e..0ea3bdfb7f7 100644
--- a/core/SConstruct
+++ b/core/SConstruct
@@ -12,3 +12,6 @@ SConscript('SConscript.firmware', variant_dir='build/firmware', duplicate=False)
 SConscript('SConscript.prodtest', variant_dir='build/prodtest', duplicate=False)
 SConscript('SConscript.reflash', variant_dir='build/reflash', duplicate=False)
 SConscript('SConscript.unix', variant_dir='build/unix', duplicate=False)
+
+if ARGUMENTS.get('QUIET_MODE', '1'):
+    Progress('$TARGET\r', overwrite=True)
\ No newline at end of file
diff --git a/core/emu.py b/core/emu.py
index dd183fe9c1e..0cf88a6ca91 100755
--- a/core/emu.py
+++ b/core/emu.py
@@ -67,27 +67,31 @@ def watch_emulator(emulator: CoreEmulator) -> int:
     return 0
 
 
-def run_debugger(emulator: CoreEmulator, gdb_script_file: str | Path | None) -> None:
+def run_debugger(emulator: CoreEmulator, gdb_script_file: str | Path | None, valgrind: bool = False, run_command: list[str] = []) -> None:
     os.chdir(emulator.workdir)
     env = emulator.make_env()
-    if platform.system() == "Darwin":
+    if valgrind:
+        dbg_command = ["valgrind", "-v", "--tool=callgrind", "--read-inline-info=yes", str(emulator.executable)] + emulator.make_args()
+    elif platform.system() == "Darwin":
         env["PATH"] = "/usr/bin"
-        os.execvpe(
-            "lldb",
-            ["lldb", "-f", str(emulator.executable), "--"] + emulator.make_args(),
-            env,
-        )
+        dbg_command = ["lldb", "-f", str(emulator.executable), "--"] + emulator.make_args()
     else:
         # Optionally run a gdb script from a file
         if gdb_script_file is None:
-            gdb = ["gdb"]
+            dbg_command = ["gdb"]
         else:
-            gdb = ["gdb", "-x", str(HERE / gdb_script_file)]
-        os.execvpe(
-            "gdb",
-            gdb + ["--args", str(emulator.executable)] + emulator.make_args(),
-            env,
-        )
+            dbg_command = ["gdb", "-x", str(HERE / gdb_script_file)]
+        dbg_command += ["--args", str(emulator.executable)]
+        dbg_command += emulator.make_args()
+
+    if not run_command:
+        os.execvpe(dbg_command[0], dbg_command, env)
+    else:
+        dbg_process = subprocess.Popen(dbg_command, env=env)
+        run_process = subprocess.Popen(run_command, env=env, shell=True)
+        rc = run_process.wait()
+        dbg_process.send_signal(signal.SIGINT)
+        sys.exit(rc)
 
 
 def _from_env(name: str) -> bool:
@@ -118,6 +122,7 @@ def _from_env(name: str) -> bool:
 @click.option("-r", "--record-dir", help="Directory where to record screen changes")
 @click.option("-s", "--slip0014", is_flag=True, help="Initialize device with SLIP-14 seed (all all all...)")
 @click.option("-S", "--script-gdb-file", type=click.Path(exists=True, dir_okay=False), help="Run gdb with an init file")
+@click.option("-V", "--valgrind", is_flag=True, help="Use valgrind instead of debugger (-D)")
 @click.option("-t", "--temporary-profile", is_flag=True, help="Create an empty temporary profile")
 @click.option("-w", "--watch", is_flag=True, help="Restart emulator if sources change")
 @click.option("-X", "--extra-arg", "extra_args", multiple=True, help="Extra argument to pass to micropython")
@@ -144,6 +149,7 @@ def cli(
     record_dir: Optional[str],
     slip0014: bool,
     script_gdb_file: str | Path | None,
+    valgrind: bool,
     temporary_profile: bool,
     watch: bool,
     extra_args: list[str],
@@ -261,8 +267,8 @@ def cli(
     if alloc_profiling:
         os.environ["TREZOR_MEMPERF"] = "1"
 
-    if debugger:
-        run_debugger(emulator, script_gdb_file)
+    if debugger or valgrind:
+        run_debugger(emulator, script_gdb_file, valgrind, command)
         raise RuntimeError("run_debugger should not return")
 
     emulator.start()
diff --git a/core/site_scons/models/D001/discovery.py b/core/site_scons/models/D001/discovery.py
index a9435390864..4e1cd7511b5 100644
--- a/core/site_scons/models/D001/discovery.py
+++ b/core/site_scons/models/D001/discovery.py
@@ -30,9 +30,9 @@ def configure(
     env.get("ENV")["RUST_TARGET"] = "thumbv7em-none-eabihf"
 
     defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [("TREZOR_BOARD", f'"{board}"')]
+    defines += [("HW_MODEL", str(hw_model))]
+    defines += [("HW_REVISION", str(hw_revision))]
 
     if "new_rendering" in features_wanted:
         sources += [
diff --git a/core/site_scons/models/D002/discovery2.py b/core/site_scons/models/D002/discovery2.py
index 8ca76fb7bb0..158ec627aa5 100644
--- a/core/site_scons/models/D002/discovery2.py
+++ b/core/site_scons/models/D002/discovery2.py
@@ -30,15 +30,11 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m33 -mfloat-abi=hard -mfpu=fpv5-sp-d16 -mtune=cortex-m33 -mcmse "
     env.get("ENV")["RUST_TARGET"] = "thumbv8m.main-none-eabihf"
 
-    defines += [mcu]
     defines += [
-        f'TREZOR_BOARD=\\"{board}\\"',
-    ]
-    defines += [
-        f"HW_MODEL={hw_model}",
-    ]
-    defines += [
-        f"HW_REVISION={hw_revision}",
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
     ]
 
     if "new_rendering" in features_wanted:
diff --git a/core/site_scons/models/T2B1/emulator.py b/core/site_scons/models/T2B1/emulator.py
index 16a6137d69b..7884d8e334e 100644
--- a/core/site_scons/models/T2B1/emulator.py
+++ b/core/site_scons/models/T2B1/emulator.py
@@ -22,13 +22,15 @@ def configure(
         features_available.append("xframebuffer")
         features_available.append("display_mono")
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
-    defines += [f"MCU_TYPE={mcu}"]
-    defines += ["FLASH_BIT_ACCESS=1"]
-    defines += ["FLASH_BLOCK_WORDS=1"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+        ("MCU_TYPE", mcu),
+        ("FLASH_BIT_ACCESS", "1"),
+        ("FLASH_BLOCK_WORDS", "1"),
+    ]
 
     if "sbu" in features_wanted:
         sources += ["embed/trezorhal/unix/sbu.c"]
diff --git a/core/site_scons/models/T2B1/trezor_r_v10.py b/core/site_scons/models/T2B1/trezor_r_v10.py
index 2289d8fa46c..5dcfd008846 100644
--- a/core/site_scons/models/T2B1/trezor_r_v10.py
+++ b/core/site_scons/models/T2B1/trezor_r_v10.py
@@ -34,10 +34,12 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 "
     env.get("ENV")["RUST_TARGET"] = "thumbv7em-none-eabihf"
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+    ]
 
     if "new_rendering" in features_wanted:
         sources += ["embed/trezorhal/xdisplay_legacy.c"]
@@ -73,7 +75,7 @@ def configure(
         features_available.append("usb")
 
     if "optiga" in features_wanted:
-        defines += ["USE_OPTIGA=1"]
+        defines += [("USE_OPTIGA", "1")]
         sources += ["embed/trezorhal/stm32f4/i2c_bus.c"]
         sources += ["embed/trezorhal/stm32f4/optiga_hal.c"]
         sources += ["embed/trezorhal/optiga/optiga.c"]
diff --git a/core/site_scons/models/T2B1/trezor_r_v3.py b/core/site_scons/models/T2B1/trezor_r_v3.py
index c72a596f3d8..2f63e90b06e 100644
--- a/core/site_scons/models/T2B1/trezor_r_v3.py
+++ b/core/site_scons/models/T2B1/trezor_r_v3.py
@@ -34,10 +34,12 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 "
     env.get("ENV")["RUST_TARGET"] = "thumbv7em-none-eabihf"
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+    ]
 
     if "new_rendering" in features_wanted:
         sources += ["embed/trezorhal/xdisplay_legacy.c"]
diff --git a/core/site_scons/models/T2B1/trezor_r_v4.py b/core/site_scons/models/T2B1/trezor_r_v4.py
index c578517c4ac..c555dd8803e 100644
--- a/core/site_scons/models/T2B1/trezor_r_v4.py
+++ b/core/site_scons/models/T2B1/trezor_r_v4.py
@@ -34,10 +34,12 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 "
     env.get("ENV")["RUST_TARGET"] = "thumbv7em-none-eabihf"
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+    ]
 
     if "new_rendering" in features_wanted:
         sources += ["embed/trezorhal/xdisplay_legacy.c"]
diff --git a/core/site_scons/models/T2B1/trezor_r_v6.py b/core/site_scons/models/T2B1/trezor_r_v6.py
index 6062ab7dc04..10b5f621a09 100644
--- a/core/site_scons/models/T2B1/trezor_r_v6.py
+++ b/core/site_scons/models/T2B1/trezor_r_v6.py
@@ -34,10 +34,12 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 "
     env.get("ENV")["RUST_TARGET"] = "thumbv7em-none-eabihf"
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+    ]
 
     if "new_rendering" in features_wanted:
         sources += ["embed/trezorhal/xdisplay_legacy.c"]
diff --git a/core/site_scons/models/T2T1/emulator.py b/core/site_scons/models/T2T1/emulator.py
index 9d10e1c6b74..d523d108fe0 100644
--- a/core/site_scons/models/T2T1/emulator.py
+++ b/core/site_scons/models/T2T1/emulator.py
@@ -21,13 +21,15 @@ def configure(
         defines += ["DISPLAY_RGB565"]
         features_available.append("display_rgb565")
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
-    defines += [f"MCU_TYPE={mcu}"]
-    defines += ["FLASH_BIT_ACCESS=1"]
-    defines += ["FLASH_BLOCK_WORDS=1"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+        ("MCU_TYPE", mcu),
+        ("FLASH_BIT_ACCESS", "1"),
+        ("FLASH_BLOCK_WORDS", "1"),
+    ]
 
     if "dma2d" in features_wanted:
         features_available.append("dma2d")
diff --git a/core/site_scons/models/T2T1/trezor_t.py b/core/site_scons/models/T2T1/trezor_t.py
index b428bd05db4..4152b8764a9 100644
--- a/core/site_scons/models/T2T1/trezor_t.py
+++ b/core/site_scons/models/T2T1/trezor_t.py
@@ -34,10 +34,12 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mtune=cortex-m4 "
     env.get("ENV")["RUST_TARGET"] = "thumbv7em-none-eabihf"
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+    ]
     sources += [
         "embed/models/T2T1/compat_settings.c",
     ]
@@ -48,33 +50,17 @@ def configure(
         sources += ["embed/trezorhal/stm32f4/xdisplay/st-7789/display_driver.c"]
         sources += ["embed/trezorhal/stm32f4/xdisplay/st-7789/display_io.c"]
         sources += ["embed/trezorhal/stm32f4/xdisplay/st-7789/display_panel.c"]
-        sources += [
-            "embed/trezorhal/stm32f4/xdisplay/st-7789/panels/tf15411a.c",
-        ]
-        sources += [
-            "embed/trezorhal/stm32f4/xdisplay/st-7789/panels/154a.c",
-        ]
-        sources += [
-            "embed/trezorhal/stm32f4/xdisplay/st-7789/panels/lx154a2411.c",
-        ]
-        sources += [
-            "embed/trezorhal/stm32f4/xdisplay/st-7789/panels/lx154a2422.c",
-        ]
+        sources += ["embed/trezorhal/stm32f4/xdisplay/st-7789/panels/tf15411a.c"]
+        sources += ["embed/trezorhal/stm32f4/xdisplay/st-7789/panels/154a.c"]
+        sources += ["embed/trezorhal/stm32f4/xdisplay/st-7789/panels/lx154a2411.c"]
+        sources += ["embed/trezorhal/stm32f4/xdisplay/st-7789/panels/lx154a2422.c"]
 
     else:
         sources += [f"embed/trezorhal/stm32f4/displays/{display}"]
-        sources += [
-            "embed/trezorhal/stm32f4/displays/panels/tf15411a.c",
-        ]
-        sources += [
-            "embed/trezorhal/stm32f4/displays/panels/154a.c",
-        ]
-        sources += [
-            "embed/trezorhal/stm32f4/displays/panels/lx154a2411.c",
-        ]
-        sources += [
-            "embed/trezorhal/stm32f4/displays/panels/lx154a2422.c",
-        ]
+        sources += ["embed/trezorhal/stm32f4/displays/panels/tf15411a.c"]
+        sources += ["embed/trezorhal/stm32f4/displays/panels/154a.c"]
+        sources += ["embed/trezorhal/stm32f4/displays/panels/lx154a2411.c"]
+        sources += ["embed/trezorhal/stm32f4/displays/panels/lx154a2422.c"]
 
     sources += ["embed/trezorhal/stm32f4/backlight_pwm.c"]
 
diff --git a/core/site_scons/models/T3B1/emulator.py b/core/site_scons/models/T3B1/emulator.py
index 493c3353d5e..50f33f04251 100644
--- a/core/site_scons/models/T3B1/emulator.py
+++ b/core/site_scons/models/T3B1/emulator.py
@@ -22,13 +22,15 @@ def configure(
         features_available.append("xframebuffer")
         features_available.append("display_mono")
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
-    defines += [f"MCU_TYPE={mcu}"]
-    defines += ["FLASH_BIT_ACCESS=1"]
-    defines += ["FLASH_BLOCK_WORDS=1"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+        ("MCU_TYPE", mcu),
+        ("FLASH_BIT_ACCESS", "1"),
+        ("FLASH_BLOCK_WORDS", "1"),
+    ]
 
     if "sbu" in features_wanted:
         sources += ["embed/trezorhal/unix/sbu.c"]
diff --git a/core/site_scons/models/T3B1/trezor_t3b1_revB.py b/core/site_scons/models/T3B1/trezor_t3b1_revB.py
index 3c5a5973b52..79e36b2c9e1 100644
--- a/core/site_scons/models/T3B1/trezor_t3b1_revB.py
+++ b/core/site_scons/models/T3B1/trezor_t3b1_revB.py
@@ -15,7 +15,7 @@ def configure(
     board = "T3B1/boards/trezor_t3b1_revB.h"
     display = "vg-2864ksweg01.c"
     hw_model = get_hw_model_as_number("T3B1")
-    hw_revision = "B"
+    hw_revision = ord("B")
 
     if "new_rendering" in features_wanted:
         defines += ["XFRAMEBUFFER"]
@@ -35,10 +35,12 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m33 -mfloat-abi=hard -mfpu=fpv5-sp-d16 -mtune=cortex-m33 -mcmse "
     env.get("ENV")["RUST_TARGET"] = "thumbv8m.main-none-eabihf"
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={ord(hw_revision)}"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+    ]
 
     if "new_rendering" in features_wanted:
         sources += ["embed/trezorhal/xdisplay_legacy.c"]
@@ -69,7 +71,7 @@ def configure(
         features_available.append("usb")
 
     if "optiga" in features_wanted:
-        defines += ["USE_OPTIGA=1"]
+        defines += [("USE_OPTIGA", "1")]
         sources += ["embed/trezorhal/stm32u5/i2c_bus.c"]
         sources += ["embed/trezorhal/stm32u5/optiga_hal.c"]
         sources += ["embed/trezorhal/optiga/optiga.c"]
diff --git a/core/site_scons/models/T3T1/emulator.py b/core/site_scons/models/T3T1/emulator.py
index e8173defe0f..f9361078369 100644
--- a/core/site_scons/models/T3T1/emulator.py
+++ b/core/site_scons/models/T3T1/emulator.py
@@ -22,21 +22,21 @@ def configure(
         features_available.append("xframebuffer")
         features_available.append("display_rgb565")
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
-    defines += [f"MCU_TYPE={mcu}"]
-    # todo change to blockwise flash when implemented in unix
-    defines += ["FLASH_BIT_ACCESS=1"]
-    defines += ["FLASH_BLOCK_WORDS=1"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+        ("MCU_TYPE", mcu),
+        # todo change to blockwise flash when implemented in unix
+        ("FLASH_BIT_ACCESS", "1"),
+        ("FLASH_BLOCK_WORDS", "1"),
+    ]
 
     if "dma2d" in features_wanted:
         features_available.append("dma2d")
         if "new_rendering" in features_wanted:
-            sources += [
-                "embed/trezorhal/unix/dma2d_bitblt.c",
-            ]
+            sources += ["embed/trezorhal/unix/dma2d_bitblt.c"]
         else:
             sources += ["embed/lib/dma2d_emul.c"]
         defines += ["USE_DMA2D"]
diff --git a/core/site_scons/models/T3T1/trezor_t3t1_revE.py b/core/site_scons/models/T3T1/trezor_t3t1_revE.py
index 412c8f77adb..947520b66d0 100644
--- a/core/site_scons/models/T3T1/trezor_t3t1_revE.py
+++ b/core/site_scons/models/T3T1/trezor_t3t1_revE.py
@@ -39,10 +39,12 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m33 -mfloat-abi=hard -mfpu=fpv5-sp-d16 -mtune=cortex-m33 -mcmse "
     env.get("ENV")["RUST_TARGET"] = "thumbv8m.main-none-eabihf"
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+    ]
 
     if "new_rendering" in features_wanted:
         sources += ["embed/trezorhal/xdisplay_legacy.c"]
@@ -50,14 +52,10 @@ def configure(
         sources += ["embed/trezorhal/stm32u5/xdisplay/st-7789/display_driver.c"]
         sources += ["embed/trezorhal/stm32u5/xdisplay/st-7789/display_io.c"]
         sources += ["embed/trezorhal/stm32u5/xdisplay/st-7789/display_panel.c"]
-        sources += [
-            "embed/trezorhal/stm32u5/xdisplay/st-7789/panels/lx154a2482.c",
-        ]
+        sources += ["embed/trezorhal/stm32u5/xdisplay/st-7789/panels/lx154a2482.c"]
     else:
         sources += [f"embed/trezorhal/stm32u5/displays/{display}"]
-        sources += [
-            "embed/trezorhal/stm32u5/displays/panels/lx154a2482.c",
-        ]
+        sources += ["embed/trezorhal/stm32u5/displays/panels/lx154a2482.c"]
 
     sources += ["embed/trezorhal/stm32u5/backlight_pwm.c"]
 
@@ -74,9 +72,7 @@ def configure(
         features_available.append("touch")
 
     if "haptic" in features_wanted:
-        sources += [
-            "embed/trezorhal/stm32u5/haptic/drv2625/drv2625.c",
-        ]
+        sources += ["embed/trezorhal/stm32u5/haptic/drv2625/drv2625.c"]
         sources += [
             "vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_tim.c",
             "vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_tim_ex.c",
@@ -118,7 +114,7 @@ def configure(
         features_available.append("dma2d")
 
     if "optiga" in features_wanted:
-        defines += ["USE_OPTIGA=1"]
+        defines += [("USE_OPTIGA", "1")]
         sources += ["embed/trezorhal/stm32u5/optiga_hal.c"]
         sources += ["embed/trezorhal/optiga/optiga.c"]
         sources += ["embed/trezorhal/optiga/optiga_commands.c"]
diff --git a/core/site_scons/models/T3T1/trezor_t3t1_v4.py b/core/site_scons/models/T3T1/trezor_t3t1_v4.py
index c6b712bb6bc..67457d4446c 100644
--- a/core/site_scons/models/T3T1/trezor_t3t1_v4.py
+++ b/core/site_scons/models/T3T1/trezor_t3t1_v4.py
@@ -39,10 +39,12 @@ def configure(
     ] = "-mthumb -mcpu=cortex-m33 -mfloat-abi=hard -mfpu=fpv5-sp-d16 -mtune=cortex-m33 -mcmse "
     env.get("ENV")["RUST_TARGET"] = "thumbv8m.main-none-eabihf"
 
-    defines += [mcu]
-    defines += [f'TREZOR_BOARD=\\"{board}\\"']
-    defines += [f"HW_MODEL={hw_model}"]
-    defines += [f"HW_REVISION={hw_revision}"]
+    defines += [
+        mcu,
+        ("TREZOR_BOARD", f'"{board}"'),
+        ("HW_MODEL", str(hw_model)),
+        ("HW_REVISION", str(hw_revision)),
+    ]
     sources += [
         f"embed/trezorhal/stm32u5/displays/{display}",
     ]
@@ -53,15 +55,11 @@ def configure(
         sources += ["embed/trezorhal/stm32u5/xdisplay/st-7789/display_driver.c"]
         sources += ["embed/trezorhal/stm32u5/xdisplay/st-7789/display_io.c"]
         sources += ["embed/trezorhal/stm32u5/xdisplay/st-7789/display_panel.c"]
-        sources += [
-            "embed/trezorhal/stm32u5/xdisplay/st-7789/panels/lx154a2482.c",
-        ]
+        sources += ["embed/trezorhal/stm32u5/xdisplay/st-7789/panels/lx154a2482.c"]
 
     else:
         sources += [f"embed/trezorhal/stm32u5/displays/{display}"]
-        sources += [
-            "embed/trezorhal/stm32u5/displays/panels/lx154a2482.c",
-        ]
+        sources += ["embed/trezorhal/stm32u5/displays/panels/lx154a2482.c"]
 
     sources += ["embed/trezorhal/stm32u5/backlight_pwm.c"]
 
@@ -77,9 +75,7 @@ def configure(
         features_available.append("touch")
 
     if "haptic" in features_wanted:
-        sources += [
-            "embed/trezorhal/stm32u5/haptic/drv2625/drv2625.c",
-        ]
+        sources += ["embed/trezorhal/stm32u5/haptic/drv2625/drv2625.c"]
         sources += [
             "vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_tim.c",
             "vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_tim_ex.c",
@@ -121,7 +117,7 @@ def configure(
         features_available.append("dma2d")
 
     if "optiga" in features_wanted:
-        defines += ["USE_OPTIGA=1"]
+        defines += [("USE_OPTIGA", "1")]
         sources += ["embed/trezorhal/stm32u5/optiga_hal.c"]
         sources += ["embed/trezorhal/optiga/optiga.c"]
         sources += ["embed/trezorhal/optiga/optiga_commands.c"]
diff --git a/core/site_scons/models/stm32f4_common.py b/core/site_scons/models/stm32f4_common.py
index 9e3b4cbe1a5..d4953663d3d 100644
--- a/core/site_scons/models/stm32f4_common.py
+++ b/core/site_scons/models/stm32f4_common.py
@@ -3,7 +3,7 @@
 
 def stm32f4_common_files(env, defines, sources, paths):
     defines += [
-        ("STM32_HAL_H", '"<stm32f4xx.h>"'),
+        ("STM32_HAL_H", "<stm32f4xx.h>"),
         ("FLASH_BLOCK_WORDS", "1"),
         ("FLASH_BIT_ACCESS", "1"),
         ("CONFIDENTIAL", ""),
diff --git a/core/site_scons/models/stm32u5_common.py b/core/site_scons/models/stm32u5_common.py
index b69e88a3241..9d12d97c0f3 100644
--- a/core/site_scons/models/stm32u5_common.py
+++ b/core/site_scons/models/stm32u5_common.py
@@ -3,9 +3,9 @@
 
 def stm32u5_common_files(env, defines, sources, paths):
     defines += [
-        ("STM32_HAL_H", '"<stm32u5xx.h>"'),
+        ("STM32_HAL_H", "<stm32u5xx.h>"),
         ("FLASH_BLOCK_WORDS", "4"),
-        ("CONFIDENTIAL", "'__attribute__((section(\".confidential\")))'"),
+        ("CONFIDENTIAL", '__attribute__((section(".confidential")))'),
     ]
 
     paths += [
diff --git a/core/site_scons/tools.py b/core/site_scons/tools.py
index 2f91feb4c15..3f5226ac20e 100644
--- a/core/site_scons/tools.py
+++ b/core/site_scons/tools.py
@@ -63,21 +63,13 @@ def _compress(data: bytes) -> bytes:
     return z.compress(data) + z.flush()
 
 
-def get_bindgen_defines(
-    defines: list[str | tuple[str, str]], paths: list[str]
-) -> tuple(str, str):
+def get_bindgen_defines(defines: list[str | tuple[str, str]], paths: list[str]) -> str:
     rest_defs = []
     for d in defines:
         if type(d) is tuple:
             d = f"-D{d[0]}={d[1]}"
         else:
             d = f"-D{d}"
-        d = (
-            d.replace('\\"', '"')
-            .replace("'", "'\"'\"'")
-            .replace('"<', "<")
-            .replace('>"', ">")
-        )
         rest_defs.append(d)
     for d in paths:
         rest_defs.append(f"-I../../{d}")
diff --git a/core/site_scons/ui/common.py b/core/site_scons/ui/common.py
index c13b67c1ef4..dbeb5d01a0d 100644
--- a/core/site_scons/ui/common.py
+++ b/core/site_scons/ui/common.py
@@ -2,13 +2,16 @@
 
 
 def add_font(
-    font_name: str, font: str | None, defines: list[str], sources: list[str]
+    font_name: str,
+    font: str | None,
+    defines: list[str | tuple[str, str]],
+    sources: list[str],
 ) -> None:
     if font is not None:
         font_filename = font.replace("_upper", "").lower()
         defines += [
-            "TREZOR_FONT_" + font_name + "_ENABLE=" + font,
-            "TREZOR_FONT_" + font_name + '_INCLUDE=\\"' + font_filename + '.h\\"',
+            (f"TREZOR_FONT_{font_name}_ENABLE", font),
+            (f"TREZOR_FONT_{font_name}_INCLUDE", f'"{font_filename}.h"'),
         ]
         sourcefile = "embed/lib/fonts/" + font_filename + ".c"
         if sourcefile not in sources:
diff --git a/docs/SUMMARY.md b/docs/SUMMARY.md
index a9de23f7238..24697f5a0cc 100644
--- a/docs/SUMMARY.md
+++ b/docs/SUMMARY.md
@@ -6,6 +6,7 @@
     - [Embedded](core/build/embedded.md)
     - [Emulator](core/build/emulator.md)
   - [Emulator](core/emulator/index.md)
+    - [Valgrind profiling](core/emulator/valgrind.md)
   - [Event Loop](core/src/event-loop.md)
   - [Apps](core/src/apps.md)
   - [Tests](core/tests/index.md)
diff --git a/docs/core/emulator/valgrind.md b/docs/core/emulator/valgrind.md
new file mode 100644
index 00000000000..05ad6b3a232
--- /dev/null
+++ b/docs/core/emulator/valgrind.md
@@ -0,0 +1,43 @@
+# Profiling emulator with Valgrind
+
+Sometimes, it can be helpful to know which parts of your code take most of the CPU time.
+[Callgrind](https://valgrind.org/docs/manual/cl-manual.html) tool from the [Valgrind](https://valgrind.org/)
+instrumentation framework can generate profiling data for a run of Trezor emulator. These can then be visualized
+with [KCachegrind](https://kcachegrind.github.io/).
+
+Bear in mind that profiling the emulator is of very limited usefulness due to:
+* different CPU architecture,
+* different/mocked drivers,
+* & other differences from actual hardware.
+Still, it might be a way to get *some* insight without a [hardware debugger](../systemview/index.md)
+and a development board.
+
+Valgrind also currently doesn't understand MicroPython call stack so it won't help you when your code is spending
+a lot of time in pure python functions that don't call out to C. It might be possible to instrument trezor-core
+so that Valgrind is aware of MicroPython stack frames.
+
+## Build
+
+```
+make build_unix_frozen TREZOR_EMULATOR_DEBUGGABLE=1 ADDRESS_SANITIZER=0
+```
+
+With `PYOPT=0`, most of the execution time is spent formatting and writing logs, so it is recommended to use
+`PYOPT=1` (and lose DebugLink) or get rid of logging manually.
+
+## Run
+
+If you're using Nix, you can use Valgrind and KCachegrind packages from our `shell.nix`:
+```
+nix-shell --args devTools true --run "poetry shell"
+```
+
+Record profiling data on some device tests:
+```
+./emu.py -a --debugger --valgrind -c 'sleep 10; pytest ../../tests/device_tests/ -v --other-pytest-args...'
+```
+
+Open profiling data in KCachegrind (file suffix is different for each emulator process):
+```
+kcachegrind src/callgrind.out.$PID
+```