diff --git a/build.sh b/build.sh
index 9bceda087..7ce1fb04a 100755
--- a/build.sh
+++ b/build.sh
@@ -305,17 +305,6 @@ if [ "$BUILD_TYPE" = "all" ]; then
     if [ $? -ne 0 ]; then exit 1; fi
 fi
 
-# Generate PlatformIO manifest file
-if [ "$BUILD_TYPE" = "all" ]; then
-    echo "* Generating PlatformIO manifest file..."
-    pushd $IDF_PATH
-    ibr=$(git describe --all 2>/dev/null)
-    ic=$(git -C "$IDF_PATH" rev-parse --short HEAD)
-    popd
-    python3 ./tools/gen_platformio_manifest.py -o "$TOOLS_JSON_OUT/" -s "$ibr" -c "$ic"
-    if [ $? -ne 0 ]; then exit 1; fi
-fi
-
 # copy everything to arduino-esp32 installation
 if [ $COPY_OUT -eq 1 ] && [ -d "$ESP32_ARDUINO" ]; then
     echo "* Copying to Arduino..."
diff --git a/tools/copy-libs.sh b/tools/copy-libs.sh
index db3d85a6c..9942241ae 100755
--- a/tools/copy-libs.sh
+++ b/tools/copy-libs.sh
@@ -67,14 +67,6 @@ LD_LIBS_SEARCH=""
 LD_SCRIPTS=""
 LD_SCRIPT_DIRS=""
 
-PIO_CC_FLAGS=""
-PIO_C_FLAGS=""
-PIO_CXX_FLAGS=""
-PIO_AS_FLAGS=""
-PIO_LD_FLAGS=""
-PIO_LD_FUNCS=""
-PIO_LD_SCRIPTS=""
-
 TOOLCHAIN_PREFIX=""
 if [ "$IS_XTENSA" = "y" ]; then
 	TOOLCHAIN="xtensa-$IDF_TARGET-elf"
@@ -120,8 +112,6 @@ for item in "${@:2:${#@}-5}"; do
 		if [[ "${item:2:7}" != "ARDUINO" ]] && [[ "$item" != "-DESP32=ESP32" ]]; then #skip ARDUINO defines
 			DEFINES+="$item "
 		fi
-	elif [ "$prefix" = "-O" ]; then
-		PIO_CC_FLAGS+="$item "
 	elif [[ "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" ]]; then
 		if [[ "${item:0:23}" != "-mfix-esp32-psram-cache" && "${item:0:18}" != "-fmacro-prefix-map" && "${item:0:20}" != "-fdiagnostics-color=" && "${item:0:19}" != "-fdebug-prefix-map=" ]]; then
 			C_FLAGS+="$item "
@@ -139,11 +129,6 @@ for item in "${@:2:${#@}-5}"; do
 	if [[ "$prefix" != "-I" && "$prefix" != "-D" && "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" && "$prefix" != "-O" ]]; then
 		if [[ "${item:0:23}" != "-mfix-esp32-psram-cache" && "${item:0:18}" != "-fmacro-prefix-map" && "${item:0:20}" != "-fdiagnostics-color=" && "${item:0:19}" != "-fdebug-prefix-map=" ]]; then
 			AS_FLAGS+="$item "
-			if [[ $C_FLAGS == *"$item"* ]]; then
-				PIO_CC_FLAGS+="$item "
-			else
-				PIO_AS_FLAGS+="$item "
-			fi
 		fi
 	fi
 done
@@ -158,20 +143,11 @@ for item in "${@:2:${#@}-5}"; do
 	if [[ "$prefix" != "-I" && "$prefix" != "-D" && "$item" != "-Wall" && "$item" != "-Werror=all"  && "$item" != "-Wextra" && "$prefix" != "-O" ]]; then
 		if [[ "${item:0:23}" != "-mfix-esp32-psram-cache" && "${item:0:18}" != "-fmacro-prefix-map" && "${item:0:20}" != "-fdiagnostics-color=" && "${item:0:19}" != "-fdebug-prefix-map=" ]]; then
 			CPP_FLAGS+="$item "
-			if [[ $PIO_CC_FLAGS != *"$item"* ]]; then
-				PIO_CXX_FLAGS+="$item "
-			fi
 		fi
 	fi
 done
 
 set -- $C_FLAGS
-for item; do
-	if [[ $PIO_CC_FLAGS != *"$item"* ]]; then
-		PIO_C_FLAGS+="$item "
-	fi
-done
-
 #parse link command to extract libs and flags
 add_next=0
 is_dir=0
@@ -195,7 +171,6 @@ else
 fi
 if [ "$IDF_TARGET" = "esp32" ]; then
 	LD_SCRIPTS+="-T esp32.rom.redefined.ld "
-	PIO_LD_SCRIPTS+="esp32.rom.redefined.ld "
 fi
 set -- $str
 for item; do
@@ -230,7 +205,6 @@ for item; do
 				is_dir=0
 			elif [[ "${item:0:23}" != "-mfix-esp32-psram-cache" && "${item:0:18}" != "-fmacro-prefix-map" && "${item:0:19}" != "-fdebug-prefix-map=" && "${item:0:17}" != "-Wl,--start-group" && "${item:0:15}" != "-Wl,--end-group" ]]; then
 				LD_FLAGS+="$item "
-				PIO_LD_FLAGS+="$item "
 			fi
 		fi
 	else
@@ -242,10 +216,8 @@ for item; do
 			elif [ "$is_script" = "1" ]; then
 				is_script=0
 				LD_SCRIPTS+="$item "
-				PIO_LD_SCRIPTS+="$item "
 			else
 				LD_FLAGS+="$item "
-				PIO_LD_FUNCS+="$item "
 			fi
 		else
 			if [ "${item:${#item}-2:2}" = ".a" ]; then
@@ -313,83 +285,8 @@ done
 
 mkdir -p "$AR_SDK"
 
-# start generation of platformio-build.py
-AR_PLATFORMIO_PY="$AR_SDK/platformio-build.py"
-cat configs/pio_start.txt > "$AR_PLATFORMIO_PY"
-
-echo "    ASFLAGS=[" >> "$AR_PLATFORMIO_PY"
-if [ "$IS_XTENSA" = "y" ]; then
-	echo "        \"-mlongcalls\"" >> "$AR_PLATFORMIO_PY"
-else
-	echo "        \"-march=rv32imc\"" >> "$AR_PLATFORMIO_PY"
-fi
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
-
-echo "    ASPPFLAGS=[" >> "$AR_PLATFORMIO_PY"
-set -- $PIO_AS_FLAGS
-for item; do
-	echo "        \"$item\"," >> "$AR_PLATFORMIO_PY"
-done
-echo "        \"-x\", \"assembler-with-cpp\"" >> "$AR_PLATFORMIO_PY"
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
-
-echo "    CFLAGS=[" >> "$AR_PLATFORMIO_PY"
-set -- $PIO_C_FLAGS
-last_item="${@: -1}"
-for item in "${@:0:${#@}}"; do
-	if [ "${item:0:1}" != "/" ]; then
-		echo "        \"$item\"," >> "$AR_PLATFORMIO_PY"
-	fi
-done
-echo "        \"$last_item\"" >> "$AR_PLATFORMIO_PY"
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
-
-echo "    CXXFLAGS=[" >> "$AR_PLATFORMIO_PY"
-set -- $PIO_CXX_FLAGS
-last_item="${@: -1}"
-for item in "${@:0:${#@}}"; do
-	if [ "${item:0:1}" != "/" ]; then
-		echo "        \"$item\"," >> "$AR_PLATFORMIO_PY"
-	fi
-done
-echo "        \"$last_item\"" >> "$AR_PLATFORMIO_PY"
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
-
-echo "    CCFLAGS=[" >> "$AR_PLATFORMIO_PY"
-set -- $PIO_CC_FLAGS
-for item; do
-	echo "        \"$item\"," >> "$AR_PLATFORMIO_PY"
-done
-echo "        \"-MMD\"" >> "$AR_PLATFORMIO_PY"
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
-
-echo "    LINKFLAGS=[" >> "$AR_PLATFORMIO_PY"
-set -- $PIO_LD_FLAGS
-for item; do
-	echo "        \"$item\"," >> "$AR_PLATFORMIO_PY"
-done
-set -- $PIO_LD_SCRIPTS
-for item; do
-	echo "        \"-T\", \"$item\"," >> "$AR_PLATFORMIO_PY"
-done
-set -- $PIO_LD_FUNCS
-for item; do
-	echo "        \"-u\", \"$item\"," >> "$AR_PLATFORMIO_PY"
-done
-echo "        '-Wl,-Map=\"%s\"' % join(\"\${BUILD_DIR}\", \"\${PROGNAME}.map\")" >> "$AR_PLATFORMIO_PY"
-
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
-
 # include dirs
 REL_INC=""
-echo "    CPPPATH=[" >> "$AR_PLATFORMIO_PY"
-
 set -- $INCLUDES
 
 for item; do
@@ -415,13 +312,6 @@ for item; do
 		out_sub="${item#*$ipath}"
 		out_cpath="$AR_SDK/include/$fname$out_sub"
 		REL_INC+="-iwithprefixbefore $fname$out_sub "
-		if [ "$out_sub" = "" ]; then
-			echo "        join($PIO_SDK, \"include\", \"$fname\")," >> "$AR_PLATFORMIO_PY"
-		else
-			pio_sub="${out_sub:1}"
-			pio_sub=`echo $pio_sub | sed 's/\//\\", \\"/g'`
-			echo "        join($PIO_SDK, \"include\", \"$fname\", \"$pio_sub\")," >> "$AR_PLATFORMIO_PY"
-		fi
 		for f in `find "$item" -name '*.h'`; do
 			rel_f=${f#*$item}
 			rel_p=${rel_f%/*}
@@ -447,58 +337,13 @@ for item; do
 		fi
 	fi
 done
-echo "        join($PIO_SDK, board_config.get(\"build.arduino.memory_type\", (board_config.get(\"build.flash_mode\", \"dio\") + \"_$OCT_PSRAM\")), \"include\")," >> "$AR_PLATFORMIO_PY"
-echo "        join(FRAMEWORK_DIR, \"cores\", board_config.get(\"build.core\"))" >> "$AR_PLATFORMIO_PY"
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
 
 AR_LIBS="$LD_LIBS"
-PIO_LIBS=""
-set -- $LD_LIBS
-for item; do
-	if [ "$PIO_LIBS" != "" ]; then
-		PIO_LIBS+=", "
-	fi
-	PIO_LIBS+="\"$item\""
-done
-
 set -- $LD_LIB_FILES
 for item; do
 	cp "$item" "$AR_SDK/lib/"
 done
 
-echo "    LIBPATH=[" >> "$AR_PLATFORMIO_PY"
-echo "        join($PIO_SDK, \"lib\")," >> "$AR_PLATFORMIO_PY"
-echo "        join($PIO_SDK, \"ld\")," >> "$AR_PLATFORMIO_PY"
-echo "        join($PIO_SDK, board_config.get(\"build.arduino.memory_type\", (board_config.get(\"build.flash_mode\", \"dio\") + \"_$OCT_PSRAM\")))" >> "$AR_PLATFORMIO_PY"
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
-
-echo "    LIBS=[" >> "$AR_PLATFORMIO_PY"
-echo "        $PIO_LIBS" >> "$AR_PLATFORMIO_PY"
-echo "    ]," >> "$AR_PLATFORMIO_PY"
-echo "" >> "$AR_PLATFORMIO_PY"
-
-echo "    CPPDEFINES=[" >> "$AR_PLATFORMIO_PY"
-set -- $DEFINES
-for item; do
-	item="${item:2}" #remove -D
-	if [[ $item == *"="* ]]; then
-		item=(${item//=/ })
-		re='^[+-]?[0-9]+([.][0-9]+)?$'
-		if [[ ${item[1]} =~ $re ]]; then
-			echo "        (\"${item[0]}\", ${item[1]})," >> "$AR_PLATFORMIO_PY"
-		else
-			echo "        (\"${item[0]}\", '${item[1]}')," >> "$AR_PLATFORMIO_PY"
-		fi
-	else
-		echo "        \"$item\"," >> "$AR_PLATFORMIO_PY"
-	fi
-done
-
-# end generation of platformio-build.py
-cat configs/pio_end.txt >> "$AR_PLATFORMIO_PY"
-
 # replace double backslashes with single one
 DEFINES=`echo "$DEFINES" | tr -s '\'`
 
diff --git a/tools/gen_platformio_manifest.py b/tools/gen_platformio_manifest.py
deleted file mode 100644
index f02218826..000000000
--- a/tools/gen_platformio_manifest.py
+++ /dev/null
@@ -1,86 +0,0 @@
-import argparse
-import json
-import os
-import re
-import sys
-
-MANIFEST_DATA = {
-    "name": "framework-arduinoespressif32-libs",
-    "description": "Precompiled libraries for Arduino Wiring-based Framework for the Espressif ESP32 series of SoCs",
-    "keywords": ["framework", "arduino", "espressif", "esp32"],
-    "license": "LGPL-2.1-or-later",
-    "repository": {
-        "type": "git",
-        "url": "https://github.com/espressif/esp32-arduino-lib-builder",
-    },
-}
-
-
-def convert_version(version_string):
-    """A helper function that converts a custom IDF version string
-    extracted from a Git repository to a suitable SemVer alternative. For example:
-    'release/v5.1' becomes '5.1.0',
-    'v7.7.7' becomes '7.7.7'
-    """
-
-    regex_pattern = (
-        r"v(?P<MAJOR>0|[1-9]\d*)\.(?P<MINOR>0|[1-9]\d*)\.*(?P<PATCH>0|[1-9]\d*)*"
-    )
-    match = re.search(regex_pattern, version_string)
-    if not match:
-        sys.stderr.write(
-            f"Failed to find a regex match for '{regex_pattern}' in '{version_string}'\n"
-        )
-        return ""
-
-    major, minor, patch = match.groups()
-    if not patch:
-        patch = "0"
-
-    return ".".join((major, minor, patch))
-
-
-def main(dst_dir, version_string, commit_hash):
-
-    converted_version = convert_version(version_string)
-    if not converted_version:
-        sys.stderr.write(f"Failed to convert version '{version_string}'\n")
-        return -1
-
-    manifest_file_path = os.path.join(dst_dir, "package.json")
-    with open(manifest_file_path, "w", encoding="utf8") as fp:
-        MANIFEST_DATA["version"] = f"{converted_version}+sha.{commit_hash}"
-        json.dump(MANIFEST_DATA, fp, indent=2)
-
-    print(
-        f"Generated PlatformIO manifest file '{manifest_file_path}' with '{converted_version}' version"
-    )
-    return 0
-
-
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser()
-    parser.add_argument(
-        "-o",
-        "--dst-dir",
-        dest="dst_dir",
-        required=True,
-        help="Destination folder where the 'package.json' manifest will be located",
-    )
-    parser.add_argument(
-        "-s",
-        "--version-string",
-        dest="version_string",
-        required=True,
-        help="ESP-IDF version string used for compiling libraries",
-    )
-    parser.add_argument(
-        "-c",
-        "--commit-hash",
-        dest="commit_hash",
-        required=True,
-        help="ESP-IDF revision in form of a commit hash",
-    )
-    args = parser.parse_args()
-
-    sys.exit(main(args.dst_dir, args.version_string, args.commit_hash))