clean up build scripts

diff --git a/docs/building.md b/docs/building.md
index af2d328..1114556 100644
--- a/docs/building.md
+++ b/docs/building.md
@@ -289,15 +289,13 @@ wsl
 
 https://stackoverflow.com/questions/46610256/chmod-wsl-bash-doesnt-work/50856772#50856772
 
-Then build windows `dll` libraries by running the following script on the WSL2 Ubuntu 24.04 host:
+Then build `secp256k1.dll` by running the following script on the WSL2 Ubuntu 24.04 host:
 
-- `stack_wallet/scripts/windows/build_all.sh`
+- `stack_wallet/scripts/windows/build_secp256k1_wsl.sh`
 
-If the DLLs were built on the WSL filesystem instead of on Windows, copy the resulting `dll`s to their respective positions on the Windows host:
+The crypto plugin libraries (epiccash, mwc, frostdart) are native-assets packages and are built by their build hooks during `flutter build`; they no longer need to be built here.
 
-- `stack_wallet/crypto_plugins/flutter_libepiccash/scripts/windows/build/libepic_cash_wallet.dll`
-
-<!-- TODO: script the copying or installation of libraries from WSL2 to the parent Windows host -->
+If the DLL was built on the WSL filesystem instead of on Windows, copy `stack_wallet/build/secp256k1.dll` to the same position on the Windows host.
 
 Frostdart will be built by the Windows host later.
 
@@ -356,15 +354,6 @@ cd .. // When finished go back to the root directory.
 
 or manually by creating the files referenced in that script with the specified content. 
 
-### Build frostdart
-
-In PowerShell on the Windows host, navigate to the `stack_wallet` folder:
-```
-cd crypto_plugins/frostdart/scripts/windows
-./build_all.bat
-cd .. // When finished go back to the root directory.
-```
-
 ### Running
 
 Run the following commands:
diff --git a/scripts/android/build_all.sh b/scripts/android/build_all.sh
deleted file mode 100755
index 1ee7c10..0000000
--- a/scripts/android/build_all.sh
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-mkdir -p build
-. ./config.sh
-
-PLUGINS_DIR=../../crypto_plugins
-
-source ../rust_version.sh
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    set_rust_version_for_libepiccash
-    (cd "${PLUGINS_DIR}"/flutter_libepiccash/scripts/android && ./build_all.sh )
-    set_rust_version_for_libmwc
-    (cd "${PLUGINS_DIR}"/flutter_libmwc/scripts/android && ./build_all.sh )
-fi
-
-set_rust_to_everything_else
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd "${PLUGINS_DIR}"/frostdart/scripts/android && ./build_all.sh )
-fi
-
-wait
-echo "Done building"
diff --git a/scripts/android/config.sh b/scripts/android/config.sh
deleted file mode 100644
index 8d560ec..0000000
--- a/scripts/android/config.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/sh
-
-export WORKDIR="$(pwd)/"build
-# Change this Value to a lower number if you run out of memory while compiling
-export OVERRIDE_THREADS="$(nproc)"
\ No newline at end of file
diff --git a/scripts/android/download_all.sh b/scripts/android/download_all.sh
deleted file mode 100755
index 34c708c..0000000
--- a/scripts/android/download_all.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-mkdir -p build
-. ./config.sh
-
-PLUGINS_DIR=../../crypto_plugins
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    (cd "${PLUGINS_DIR}"/flutter_libepiccash/scripts/android && ./download.sh)
-    (cd "${PLUGINS_DIR}"/flutter_libmwc/scripts/android && ./download.sh)
-fi
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd "${PLUGINS_DIR}"/frostdart/scripts/android && ./download.sh)
-fi
-
-wait
-echo "Done"
diff --git a/scripts/app_config/configure_campfire.sh b/scripts/app_config/configure_campfire.sh
index e12697b..40e03df 100755
--- a/scripts/app_config/configure_campfire.sh
+++ b/scripts/app_config/configure_campfire.sh
@@ -40,8 +40,6 @@ dart "${APP_PROJECT_ROOT_DIR}/tool/gen_interfaces.dart" \
       TOR \
       FIRO
 
-export INCLUDE_EPIC_SO="OFF"
-export INCLUDE_MWC_SO="OFF"
 
 pushd "${APP_PROJECT_ROOT_DIR}"
 BUILT_COMMIT_HASH=$(git log -1 --pretty=format:"%H")
diff --git a/scripts/app_config/configure_stack_duo.sh b/scripts/app_config/configure_stack_duo.sh
index 7d6bae0..d0bf369 100755
--- a/scripts/app_config/configure_stack_duo.sh
+++ b/scripts/app_config/configure_stack_duo.sh
@@ -33,8 +33,6 @@ dart "${APP_PROJECT_ROOT_DIR}/tool/gen_interfaces.dart" \
       TOR \
       FROST
 
-export INCLUDE_EPIC_SO="OFF"
-export INCLUDE_MWC_SO="OFF"
 
 pushd "${APP_PROJECT_ROOT_DIR}"
 BUILT_COMMIT_HASH=$(git log -1 --pretty=format:"%H")
diff --git a/scripts/app_config/configure_stack_wallet.sh b/scripts/app_config/configure_stack_wallet.sh
index 56da694..ae16b70 100755
--- a/scripts/app_config/configure_stack_wallet.sh
+++ b/scripts/app_config/configure_stack_wallet.sh
@@ -61,8 +61,6 @@ if  [[ "$1" == "windows" ]]; then
 fi
 
 
-export INCLUDE_EPIC_SO="ON"
-export INCLUDE_MWC_SO="ON"
 
 pushd "${APP_PROJECT_ROOT_DIR}"
 BUILT_COMMIT_HASH=$(git log -1 --pretty=format:"%H")
diff --git a/scripts/app_config/platforms/linux/platform_config.sh b/scripts/app_config/platforms/linux/platform_config.sh
index 7214578..be4f6bd 100755
--- a/scripts/app_config/platforms/linux/platform_config.sh
+++ b/scripts/app_config/platforms/linux/platform_config.sh
@@ -16,5 +16,3 @@ done
 sed -i "s/${APP_BASIC_NAME_PLACEHOLDER}/${NEW_BASIC_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${LINUX_TF_0}"
 sed -i "s/${APP_ID_PLACEHOLDER}/${NEW_APP_ID}/g" "${APP_PROJECT_ROOT_DIR}/${LINUX_TF_0}"
 sed -i "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${LINUX_TF_1}"
-sed -i "s/INCLUDE_EPIC_SO_FLAG/${INCLUDE_EPIC_SO}/g" "${APP_PROJECT_ROOT_DIR}/${LINUX_TF_0}"
-sed -i "s/INCLUDE_MWC_SO_FLAG/${INCLUDE_MWC_SO}/g" "${APP_PROJECT_ROOT_DIR}/${LINUX_TF_0}"
\ No newline at end of file
diff --git a/scripts/app_config/platforms/windows/platform_config.sh b/scripts/app_config/platforms/windows/platform_config.sh
index cbce1d8..82305f8 100755
--- a/scripts/app_config/platforms/windows/platform_config.sh
+++ b/scripts/app_config/platforms/windows/platform_config.sh
@@ -16,5 +16,3 @@ done
 sed -i "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${WIN_TF_0}"
 sed -i "s/${APP_NAME_PLACEHOLDER}/${NEW_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${WIN_TF_1}"
 sed -i "s/${APP_BASIC_NAME_PLACEHOLDER}/${NEW_BASIC_NAME}/g" "${APP_PROJECT_ROOT_DIR}/${WIN_TF_2}"
-sed -i "s/INCLUDE_EPIC_SO_FLAG/${INCLUDE_EPIC_SO}/g" "${APP_PROJECT_ROOT_DIR}/${WIN_TF_2}"
-sed -i "s/INCLUDE_MWC_SO_FLAG/${INCLUDE_MWC_SO}/g" "${APP_PROJECT_ROOT_DIR}/${WIN_TF_2}"
diff --git a/scripts/app_config/templates/linux/CMakeLists.txt b/scripts/app_config/templates/linux/CMakeLists.txt
index d36efad..1eca6af 100644
--- a/scripts/app_config/templates/linux/CMakeLists.txt
+++ b/scripts/app_config/templates/linux/CMakeLists.txt
@@ -9,8 +9,6 @@ set(BINARY_NAME "place_holder")
 # https://wiki.gnome.org/HowDoI/ChooseApplicationID
 set(APPLICATION_ID "com.place.holder")
 
-set(INCLUDE_EPIC_SO INCLUDE_EPIC_SO_FLAG)
-set(INCLUDE_MWC_SO INCLUDE_MWC_SO_FLAG)
 
 # Explicitly opt in to modern CMake behaviors to avoid warnings with recent
 # versions of CMake.
@@ -154,16 +152,6 @@ install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}
 install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
   COMPONENT Runtime)
 
-if(INCLUDE_EPIC_SO)
-  install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/../crypto_plugins/flutter_libepiccash/linux/bin/x86_64-unknown-linux-gnu/release/libepic_cash_wallet.so" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endif()
-
-if(INCLUDE_MWC_SO)
-  install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/../crypto_plugins/flutter_libmwc/linux/bin/x86_64-unknown-linux-gnu/release/libmwc_wallet.so" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endif()
-
 if(USE_SYSTEM_SECURE_STORAGE_DEPS)
   file(GLOB JSONCPP_SO_FILES "${JSONCPP_LIBDIR}/libjsoncpp.so*")
   install(FILES ${JSONCPP_SO_FILES} DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
diff --git a/scripts/app_config/templates/windows/CMakeLists.txt b/scripts/app_config/templates/windows/CMakeLists.txt
index d152222..c261306 100644
--- a/scripts/app_config/templates/windows/CMakeLists.txt
+++ b/scripts/app_config/templates/windows/CMakeLists.txt
@@ -6,8 +6,6 @@ project(place_holder LANGUAGES CXX)
 # the on-disk name of your application.
 set(BINARY_NAME "place_holder")
 
-set(INCLUDE_EPIC_SO INCLUDE_EPIC_SO_FLAG)
-set(INCLUDE_MWC_SO INCLUDE_MWC_SO_FLAG)
 
 # Explicitly opt in to modern CMake behaviors to avoid warnings with recent
 # versions of CMake.
@@ -83,16 +81,6 @@ install(FILES "${FLUTTER_ICU_DATA_FILE}" DESTINATION "${INSTALL_BUNDLE_DATA_DIR}
 install(FILES "${FLUTTER_LIBRARY}" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
   COMPONENT Runtime)
 
-if(INCLUDE_EPIC_SO)
-  install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/../crypto_plugins/flutter_libepiccash/scripts/windows/build/libepic_cash_wallet.dll" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endif()
-
-if(INCLUDE_MWC_SO)
-  install(FILES "${CMAKE_CURRENT_SOURCE_DIR}/../crypto_plugins/flutter_libmwc/scripts/windows/build/libmwc_wallet.dll" DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
-    COMPONENT Runtime)
-endif()
-
 if(PLUGIN_BUNDLED_LIBRARIES)
   install(FILES "${PLUGIN_BUNDLED_LIBRARIES}"
     DESTINATION "${INSTALL_BUNDLE_LIB_DIR}"
diff --git a/scripts/build_app.sh b/scripts/build_app.sh
index 051236d..acedd35 100755
--- a/scripts/build_app.sh
+++ b/scripts/build_app.sh
@@ -32,7 +32,9 @@ unset -v APP_BUILD_PLATFORM
 unset -v APP_NAMED_ID
 
 # optional args (with defaults)
-BUILD_CRYPTO_PLUGINS=0
+# -i: skip building the platform native deps (secure storage deps, secp256k1).
+SKIP_NATIVE_DEPS_BUILD=0
+# -d: use downloaded/prebuilt binaries instead of building from source where supported.
 DOWNLOAD_CRYPTO_PLUGINS=0
 BUILD_ISAR_FROM_SOURCE=0
 USE_SYSTEM_SECURE_STORAGE_DEPS=0
@@ -44,7 +46,7 @@ while getopts "v:b:p:a:idfs" opt; do
         b) APP_BUILD_NUMBER="$OPTARG" ;;
         p) APP_BUILD_PLATFORM="$OPTARG" ;;
         a) APP_NAMED_ID="$OPTARG" ;;
-        i) BUILD_CRYPTO_PLUGINS=1 ;;
+        i) SKIP_NATIVE_DEPS_BUILD=1 ;;
         d) DOWNLOAD_CRYPTO_PLUGINS=1 ;;
         f) BUILD_ISAR_FROM_SOURCE=1 ;;
         s) USE_SYSTEM_SECURE_STORAGE_DEPS=1 ;;
@@ -80,10 +82,8 @@ source "${APP_PROJECT_ROOT_DIR}/scripts/app_config/templates/configure_template_
 export BUILD_ISAR_FROM_SOURCE
 export USE_SYSTEM_SECURE_STORAGE_DEPS
 
-# checks for the correct platform dir and pushes it for later
-if printf '%s\0' "${APP_PLATFORMS[@]}" | grep -Fxqz -- "${APP_BUILD_PLATFORM}"; then
-    pushd "${APP_PROJECT_ROOT_DIR}/scripts/${APP_BUILD_PLATFORM}"
-else
+# checks for a valid platform
+if ! printf '%s\0' "${APP_PLATFORMS[@]}" | grep -Fxqz -- "${APP_BUILD_PLATFORM}"; then
     echo "Invalid platform: ${APP_BUILD_PLATFORM}"
     usage
 fi
@@ -115,12 +115,24 @@ else
     exit 1
 fi
 
-if [ "$BUILD_CRYPTO_PLUGINS" -eq 0 ]; then
-    if [ "$DOWNLOAD_CRYPTO_PLUGINS" -eq 1 ]; then
-        ./download_all.sh "$APP_NAMED_ID"
-    else
-        ./build_all.sh "$APP_NAMED_ID"
-    fi
+# Build platform native deps that are not provided by pub packages. The crypto
+# plugins (flutter_libepiccash, flutter_libmwc, frostdart) are native-assets
+# packages now; their build hooks compile (or fetch) them during flutter build.
+if [ "$SKIP_NATIVE_DEPS_BUILD" -eq 0 ]; then
+    case "$APP_BUILD_PLATFORM" in
+        linux)
+            pushd "${APP_PROJECT_ROOT_DIR}/scripts/linux"
+            ./build_secure_storage_deps.sh
+            ./build_secp256k1.sh
+            popd
+            ;;
+        windows)
+            # WSL cross-compile of secp256k1.dll. CI builds it natively instead.
+            if [ "$DOWNLOAD_CRYPTO_PLUGINS" -eq 0 ]; then
+                pushd "${APP_PROJECT_ROOT_DIR}/scripts/windows"
+                ./build_secp256k1_wsl.sh
+                popd
+            fi
+            ;;
+    esac
 fi
-
-popd
diff --git a/scripts/ios/build_all.sh b/scripts/ios/build_all.sh
deleted file mode 100755
index f025c6c..0000000
--- a/scripts/ios/build_all.sh
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-# ensure ios rust triples are there
-rustup target add aarch64-apple-ios
-rustup target add x86_64-apple-ios
-
-source ../rust_version.sh
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    set_rust_version_for_libepiccash
-    (cd ../../crypto_plugins/flutter_libepiccash/scripts/ios && ./build_all.sh )
-    set_rust_version_for_libmwc
-    (cd ../../crypto_plugins/flutter_libmwc/scripts/ios/ && ./build_all.sh )
-fi
-
-set_rust_to_everything_else
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd ../../crypto_plugins/frostdart/scripts/ios && ./build_all.sh )
-fi
-
-wait
-echo "Done building"
diff --git a/scripts/ios/download_all.sh b/scripts/ios/download_all.sh
deleted file mode 100755
index 1e5866c..0000000
--- a/scripts/ios/download_all.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-mkdir -p build
-
-PLUGINS_DIR=../../crypto_plugins
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    (cd "${PLUGINS_DIR}"/flutter_libepiccash/scripts/ios && ./download.sh)
-    (cd "${PLUGINS_DIR}"/flutter_libmwc/scripts/ios && ./download.sh)
-fi
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd "${PLUGINS_DIR}"/frostdart/scripts/ios && ./download.sh)
-fi
-
-wait
-echo "Done"
diff --git a/scripts/linux/build_all.sh b/scripts/linux/build_all.sh
deleted file mode 100755
index d2c703d..0000000
--- a/scripts/linux/build_all.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-# for arm
-# flutter-elinux clean
-# flutter-elinux pub get
-# flutter-elinux build linux --dart-define="IS_ARM=true"
-mkdir -p build
-./build_secure_storage_deps.sh
-
-source ../rust_version.sh
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    set_rust_version_for_libepiccash
-    (cd ../../crypto_plugins/flutter_libepiccash/scripts/linux && ./build_all.sh )
-    set_rust_version_for_libmwc
-    (cd ../../crypto_plugins/flutter_libmwc/scripts/linux && ./build_all.sh )
-fi
-
-set_rust_to_everything_else
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd ../../crypto_plugins/frostdart/scripts/linux && ./build_all.sh )
-fi
-
-./build_secp256k1.sh
-
-wait
-echo "Done building"
diff --git a/scripts/linux/download_all.sh b/scripts/linux/download_all.sh
deleted file mode 100755
index 1da22e4..0000000
--- a/scripts/linux/download_all.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-mkdir -p build
-./build_secure_storage_deps.sh
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    (cd ../../crypto_plugins/flutter_libepiccash/scripts/linux && ./download.sh)
-    (cd ../../crypto_plugins/flutter_libmwc/scripts/linux && ./download.sh)
-fi
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd ../../crypto_plugins/frostdart/scripts/linux && ./download.sh)
-fi
-
-./build_secp256k1.sh
-
-wait
-echo "Done"
diff --git a/scripts/macos/build_all.sh b/scripts/macos/build_all.sh
deleted file mode 100755
index 4dbefd5..0000000
--- a/scripts/macos/build_all.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-source ../rust_version.sh
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    set_rust_version_for_libepiccash
-    (cd ../../crypto_plugins/flutter_libepiccash/scripts/macos && ./build_all.sh )
-    set_rust_version_for_libmwc
-    (cd ../../crypto_plugins/flutter_libmwc/scripts/macos && ./build_all.sh )
-fi
-
-set_rust_to_everything_else
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd ../../crypto_plugins/frostdart/scripts/macos && ./build_all.sh )
-fi
-
-wait
-echo "Done building"
diff --git a/scripts/macos/download_all.sh b/scripts/macos/download_all.sh
deleted file mode 100755
index 36dce29..0000000
--- a/scripts/macos/download_all.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-mkdir -p build
-
-PLUGINS_DIR=../../crypto_plugins
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    (cd "${PLUGINS_DIR}"/flutter_libepiccash/scripts/macos && ./download.sh)
-    (cd "${PLUGINS_DIR}"/flutter_libmwc/scripts/macos && ./download.sh)
-fi
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd "${PLUGINS_DIR}"/frostdart/scripts/macos && ./download.sh)
-fi
-
-wait
-echo "Done"
diff --git a/scripts/rust_version.sh b/scripts/rust_version.sh
deleted file mode 100755
index 68c52d6..0000000
--- a/scripts/rust_version.sh
+++ /dev/null
@@ -1,29 +0,0 @@
-#!/bin/sh
-
-
-set_rust_to_everything_else() {
-  if rustup toolchain list | grep -q "1.85.1"; then
-    rustup default 1.89.0
-  else
-    echo "Rust version 1.89.0 is not installed. Please install it using 'rustup install 1.89.0'." >&2
-    exit 1
-  fi
-}
-
-set_rust_version_for_libepiccash() {
-  if rustup toolchain list | grep -q "1.89.0"; then
-    rustup default 1.89.0
-  else
-    echo "Rust version 1.89.0 is not installed. Please install it using 'rustup install 1.89.0'." >&2
-    exit 1
-  fi
-}
-
-set_rust_version_for_libmwc() {
-  if rustup toolchain list | grep -q "1.85.1"; then
-    rustup default 1.85.1
-  else
-    echo "Rust version 1.85.1 is not installed. Please install it using 'rustup install 1.85.1'." >&2
-    exit 1
-  fi
-}
\ No newline at end of file
diff --git a/scripts/windows/build_all.sh b/scripts/windows/build_all.sh
deleted file mode 100755
index 6d3f3f5..0000000
--- a/scripts/windows/build_all.sh
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-mkdir -p build
-
-source ../rust_version.sh
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    set_rust_version_for_libepiccash
-    (cd ../../crypto_plugins/flutter_libepiccash/scripts/windows && ./build_all.sh )
-    set_rust_version_for_libmwc
-    (cd ../../crypto_plugins/flutter_libmwc/scripts/windows && ./build_all.sh )
-fi
-
-set_rust_to_everything_else
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd ../../crypto_plugins/frostdart/scripts/windows && ./build_all.sh )
-fi
-
-./build_secp256k1_wsl.sh
-
-wait
-echo "Done building"
diff --git a/scripts/windows/deps.sh b/scripts/windows/deps.sh
index 6786700..bae12bc 100644
--- a/scripts/windows/deps.sh
+++ b/scripts/windows/deps.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
-cd ../../crypto_plugins/flutter_libepiccash/scripts/windows && ./deps.sh
-(cd ../../crypto_plugins/flutter_libmwc/scripts/windows && ./deps.sh)
+# Toolchain for cross-compiling secp256k1.dll from WSL (build_secp256k1_wsl.sh).
+sudo apt install clang gcc-mingw-w64-x86-64 g++-mingw-w64-x86-64
 sudo apt install libgtk2.0-dev
 
 wait
diff --git a/scripts/windows/download_all.sh b/scripts/windows/download_all.sh
deleted file mode 100755
index 0585885..0000000
--- a/scripts/windows/download_all.sh
+++ /dev/null
@@ -1,21 +0,0 @@
-#!/bin/bash
-
-set -x -e
-
-APP="${1:-stack_wallet}"
-
-mkdir -p build
-
-PLUGINS_DIR=../../crypto_plugins
-
-if [[ "$APP" = "stack_wallet" ]]; then
-    (cd "${PLUGINS_DIR}"/flutter_libepiccash/scripts/windows && ./download.sh)
-    (cd "${PLUGINS_DIR}"/flutter_libmwc/scripts/windows && ./download.sh)
-fi
-
-if [[ "$APP" = "stack_wallet" || "$APP" = "stack_duo" ]]; then
-    (cd "${PLUGINS_DIR}"/frostdart/scripts/windows && ./download.sh)
-fi
-
-wait
-echo "Done"