diff --git a/scripts/platformio-pre.py b/scripts/platformio-pre.py
index 8ea61039..fd4752ea 100644
--- a/scripts/platformio-pre.py
+++ b/scripts/platformio-pre.py
@@ -109,6 +109,34 @@ def update_library_build_metadata(library_json_path, desired_updates, descriptio
     print(f"[pio] pre: Trimmed {description} build metadata")
 
 
+def create_library_build_metadata(
+    library_json_path,
+    manifest_defaults,
+    desired_updates,
+    description,
+):
+    if os.path.exists(library_json_path):
+        update_library_build_metadata(
+            library_json_path,
+            desired_updates,
+            description,
+        )
+        return
+
+    library_dir = os.path.dirname(library_json_path)
+    if not os.path.isdir(library_dir):
+        print(f"[pio] pre: {description} metadata not found yet: {library_json_path}")
+        return
+
+    library_json = dict(manifest_defaults)
+    library_json["build"] = dict(desired_updates)
+    with open(library_json_path, "w", encoding="utf-8", newline="\n") as fp:
+        json.dump(library_json, fp, indent=4)
+        fp.write("\n")
+
+    print(f"[pio] pre: Created trimmed {description} build metadata")
+
+
 def iter_active_project_source_files():
     source_roots = ("apps", "boards", "modules", "platform")
     source_extensions = (".c", ".cc", ".cpp", ".h", ".hpp", ".ino")
@@ -251,10 +279,21 @@ def configure_esp8266audio_for_esp32():
 
     audio_dir = os.path.join(project_dir, ".pio", "libdeps", pio_env, "ESP8266Audio")
     library_json_path = os.path.join(audio_dir, "library.json")
-    desired_src_filter = [
-        "+<*>",
-        "-<AudioFileSourceSD.cpp>",
-    ]
+    # Pager has its own audio path. T-Deck only uses the I2S output and its
+    # logger definition; keep the full-library fallback for other ESP boards.
+    if pio_env in ("tlora_pager_sx1262", "tlora_pager_sx1262_debug"):
+        desired_src_filter = ["-<*>"]
+    elif pio_env in ("tdeck", "tdeck_debug"):
+        desired_src_filter = [
+            "-<*>",
+            "+<AudioLogger.cpp>",
+            "+<AudioOutputI2S.cpp>",
+        ]
+    else:
+        desired_src_filter = [
+            "+<*>",
+            "-<AudioFileSourceSD.cpp>",
+        ]
     update_library_build_metadata(
         library_json_path,
         {"srcFilter": desired_src_filter},
@@ -262,6 +301,215 @@ def configure_esp8266audio_for_esp32():
     )
 
 
+def configure_radiolib_for_sx1262_esp32():
+    if not is_esp32_env or pio_env not in (
+        "tlora_pager_sx1262",
+        "tlora_pager_sx1262_debug",
+        "tdeck",
+        "tdeck_debug",
+    ):
+        return
+
+    radiolib_dir = os.path.join(project_dir, ".pio", "libdeps", pio_env, "RadioLib")
+    library_json_path = os.path.join(radiolib_dir, "library.json")
+    # These targets only instantiate SX1262. Avoid compiling every other
+    # transceiver and protocol implementation that RadioLib ships.
+    desired_src_filter = [
+        "-<*>",
+        "+<Hal.cpp>",
+        "+<Module.cpp>",
+        "+<hal/Arduino/ArduinoHal.cpp>",
+        "+<protocols/PhysicalLayer/*.cpp>",
+        "+<protocols/Print/*.cpp>",
+        "+<utils/*.cpp>",
+        "+<modules/SX126x/SX1262.cpp>",
+        "+<modules/SX126x/SX126x.cpp>",
+        "+<modules/SX126x/SX126x_LR_FHSS.cpp>",
+        "+<modules/SX126x/SX126x_commands.cpp>",
+        "+<modules/SX126x/SX126x_config.cpp>",
+    ]
+    update_library_build_metadata(
+        library_json_path,
+        {"srcFilter": desired_src_filter},
+        f"RadioLib for {pio_env}",
+    )
+
+
+def configure_lvgl_for_esp32_ui():
+    if not is_esp32_env or pio_env not in (
+        "tlora_pager_sx1262",
+        "tlora_pager_sx1262_debug",
+        "tdeck",
+        "tdeck_debug",
+    ):
+        return
+
+    lvgl_dir = os.path.join(project_dir, ".pio", "libdeps", pio_env, "lvgl")
+    library_json_path = os.path.join(lvgl_dir, "library.json")
+    # Keep this list aligned with platform/esp/arduino_common/include/lv_conf.h.
+    # Disabled desktop drivers, render backends, and codecs otherwise still
+    # create hundreds of empty or unreachable compilation units.
+    desired_src_filter = [
+        "-<*>",
+        "+<lv_init.c>",
+        "+<core/>",
+        "+<display/>",
+        "+<draw/*.c>",
+        "+<draw/convert/lv_draw_buf_convert.c>",
+        "+<draw/sw/>",
+        "+<font/lv_binfont_loader.c>",
+        "+<font/lv_font.c>",
+        "+<font/lv_font_fmt_txt.c>",
+        "+<font/lv_font_montserrat_*.c>",
+        "+<indev/>",
+        "+<layouts/>",
+        "+<misc/>",
+        "+<osal/lv_os.c>",
+        "+<osal/lv_os_none.c>",
+        "+<stdlib/lv_mem.c>",
+        "+<stdlib/builtin/lv_sprintf_builtin.c>",
+        "+<stdlib/builtin/lv_string_builtin.c>",
+        "+<themes/>",
+        "+<tick/>",
+        "+<widgets/>",
+        "+<libs/bin_decoder/>",
+        "+<libs/bmp/>",
+        "+<libs/fsdrv/lv_fs_memfs.c>",
+        "+<libs/gif/>",
+        "+<libs/lodepng/>",
+        "+<libs/qrcode/>",
+        "+<libs/tjpgd/>",
+        "+<others/observer/>",
+        "+<others/snapshot/>",
+    ]
+    update_library_build_metadata(
+        library_json_path,
+        {"srcFilter": desired_src_filter},
+        f"LVGL for {pio_env}",
+    )
+
+
+def configure_crypto_for_sx1262_esp32():
+    if not is_esp32_env or pio_env not in (
+        "tlora_pager_sx1262",
+        "tlora_pager_sx1262_debug",
+        "tdeck",
+        "tdeck_debug",
+    ):
+        return
+
+    crypto_dir = os.path.join(project_dir, ".pio", "libdeps", pio_env, "Crypto")
+    library_json_path = os.path.join(crypto_dir, "library.json")
+    # This is the linked object closure for AES-CTR, ChaCha-Poly1305,
+    # Curve25519, RNG, and SHA-256 used by the four supported protocols.
+    desired_src_filter = [
+        "-<*>",
+        "+<AESEsp32.cpp>",
+        "+<AuthenticatedCipher.cpp>",
+        "+<BigNumberUtil.cpp>",
+        "+<BlockCipher.cpp>",
+        "+<ChaCha.cpp>",
+        "+<ChaChaPoly.cpp>",
+        "+<Cipher.cpp>",
+        "+<Crypto.cpp>",
+        "+<Curve25519.cpp>",
+        "+<Hash.cpp>",
+        "+<Poly1305.cpp>",
+        "+<RNG.cpp>",
+        "+<SHA256.cpp>",
+    ]
+    update_library_build_metadata(
+        library_json_path,
+        {"srcFilter": desired_src_filter},
+        f"Crypto for {pio_env}",
+    )
+
+
+def configure_sensorlib_for_sx1262_esp32():
+    if not is_esp32_env or pio_env not in (
+        "tlora_pager_sx1262",
+        "tlora_pager_sx1262_debug",
+        "tdeck",
+        "tdeck_debug",
+    ):
+        return
+
+    sensor_dir = os.path.join(project_dir, ".pio", "libdeps", pio_env, "SensorLib")
+    library_json_path = os.path.join(sensor_dir, "library.json")
+    # Both boards use BHI260AP. T-Deck additionally needs the GT911 base
+    # implementation; its concrete driver is header-only in SensorLib 0.3.3.
+    desired_src_filter = [
+        "-<*>",
+        "+<SensorBHI260AP.cpp>",
+        "+<bosch/BoschParseStatic.cpp>",
+        "+<bosch/bhy2.c>",
+        "+<bosch/bhy2_hif.c>",
+        "+<bosch/common/common.cpp>",
+        "+<platform/SensorCommStatic.cpp>",
+    ]
+    if pio_env in ("tdeck", "tdeck_debug"):
+        desired_src_filter.append("+<TouchDrvInterface.cpp>")
+
+    update_library_build_metadata(
+        library_json_path,
+        {"srcFilter": desired_src_filter},
+        f"SensorLib for {pio_env}",
+    )
+
+
+def configure_sdfat_for_sx1262_esp32():
+    if not is_esp32_env or pio_env not in (
+        "tlora_pager_sx1262",
+        "tlora_pager_sx1262_debug",
+        "tdeck",
+        "tdeck_debug",
+    ):
+        return
+
+    sdfat_dir = os.path.join(project_dir, ".pio", "libdeps", pio_env, "SdFat")
+    library_json_path = os.path.join(sdfat_dir, "library.json")
+    # Preserve FAT32/exFAT and the generic Arduino SPI path while excluding
+    # formatters, streams, debug helpers, and other architectures' drivers.
+    desired_src_filter = [
+        "-<*>",
+        "+<ExFatLib/ExFatFile.cpp>",
+        "+<ExFatLib/ExFatFilePrint.cpp>",
+        "+<ExFatLib/ExFatFileWrite.cpp>",
+        "+<ExFatLib/ExFatName.cpp>",
+        "+<ExFatLib/ExFatPartition.cpp>",
+        "+<ExFatLib/ExFatVolume.cpp>",
+        "+<FatLib/FatFile.cpp>",
+        "+<FatLib/FatFileLFN.cpp>",
+        "+<FatLib/FatFilePrint.cpp>",
+        "+<FatLib/FatName.cpp>",
+        "+<FatLib/FatPartition.cpp>",
+        "+<FatLib/FatVolume.cpp>",
+        "+<FsLib/FsFile.cpp>",
+        "+<FsLib/FsNew.cpp>",
+        "+<FsLib/FsVolume.cpp>",
+        "+<SdCard/SdCardInfo.cpp>",
+        "+<SdCard/SdSpiCard/SdSpiCard.cpp>",
+        "+<SdCard/SdSpiCard/SpiDriver/SdSpiChipSelect.cpp>",
+        "+<common/FmtNumber.cpp>",
+        "+<common/FsCache.cpp>",
+        "+<common/FsDateTime.cpp>",
+        "+<common/FsName.cpp>",
+        "+<common/FsUtf.cpp>",
+        "+<common/upcase.cpp>",
+    ]
+    create_library_build_metadata(
+        library_json_path,
+        {
+            "name": "SdFat",
+            "version": "2.3.1",
+            "frameworks": ["arduino"],
+            "platforms": ["*"],
+        },
+        {"srcFilter": desired_src_filter},
+        f"SdFat for {pio_env}",
+    )
+
+
 def configure_nrf52_framework_libraries():
     if not is_nrf52_node_env or not is_nrf52_env:
         return
@@ -341,6 +589,11 @@ guard_no_arduino_sd_audio_paths()
 configure_radiolib_for_gat562()
 configure_crypto_for_gat562()
 configure_esp8266audio_for_esp32()
+configure_radiolib_for_sx1262_esp32()
+configure_lvgl_for_esp32_ui()
+configure_crypto_for_sx1262_esp32()
+configure_sensorlib_for_sx1262_esp32()
+configure_sdfat_for_sx1262_esp32()
 configure_nrf52_framework_libraries()
 inject_project_version_define()
 
diff --git a/third_party/codec2/library.json b/third_party/codec2/library.json
index 1fae6a25..dfe6c4fd 100644
--- a/third_party/codec2/library.json
+++ b/third_party/codec2/library.json
@@ -10,75 +10,31 @@
     "srcDir": "src",
     "srcFilter": [
       "-<*>",
-      "+<HRA_112_112.c>",
-      "+<HRA_56_56.c>",
-      "+<HRAa_1536_512.c>",
-      "+<HRAb_396_504.c>",
-      "+<H_1024_2048_4f.c>",
-      "+<H_128_256_5.c>",
-      "+<H_16200_9720.c>",
-      "+<H_2064_516_sparse.c>",
-      "+<H_212_158.c>",
-      "+<H_256_512_4.c>",
-      "+<H_256_768_22.c>",
-      "+<H_4096_8192_3d.c>",
       "+<codebook.c>",
       "+<codebookd.c>",
       "+<codebookge.c>",
       "+<codebookjmv.c>",
-      "+<codebookjvm.c>",
-      "+<codebooklspmelvq.c>",
-      "+<codebookmel.c>",
       "+<codebooknewamp1.c>",
       "+<codebooknewamp1_energy.c>",
       "+<codebooknewamp2.c>",
       "+<codebooknewamp2_energy.c>",
       "+<codec2.c>",
       "+<codec2_fft.c>",
-      "+<codec2_fifo.c>",
-      "+<codec2_math_arm.c>",
-      "+<dump.c>",
-      "+<fdmdv.c>",
-      "+<fdmdv_channel.c>",
-      "+<filter.c>",
-      "+<fmfsk.c>",
-      "+<freedv_1600.c>",
-      "+<freedv_2020.c>",
-      "+<freedv_700.c>",
-      "+<freedv_api.c>",
-      "+<freedv_data_channel.c>",
-      "+<freedv_fsk.c>",
-      "+<freedv_vhf_framing.c>",
-      "+<fsk.c>",
-      "+<golay23.c>",
-      "+<gp_interleaver.c>",
-      "+<interldpc.c>",
       "+<interp.c>",
       "+<kiss_fft.c>",
       "+<kiss_fftr.c>",
-      "+<ldpc_codes.c>",
       "+<lpc.c>",
-      "+<lpcnet_freq.c>",
       "+<lsp.c>",
       "+<mbest.c>",
       "+<memtools.c>",
-      "+<modem_probe.c>",
-      "+<modem_stats.c>",
-      "+<mpdecode_core.c>",
       "+<newamp1.c>",
       "+<newamp2.c>",
       "+<nlp.c>",
-      "+<octave.c>",
-      "+<ofdm.c>",
-      "+<ofdm_mode.c>",
       "+<pack.c>",
       "+<phase.c>",
-      "+<phi0.c>",
       "+<postfilter.c>",
       "+<quantise.c>",
-      "+<reliable_text.c>",
-      "+<sine.c>",
-      "+<varicode.c>"
+      "+<sine.c>"
     ]
   }
 }