diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b23d17d0f..2563ef4ad 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -53,7 +53,8 @@ jobs:
         registry-url: 'https://registry.npmjs.org'
     - run: npm ci
     - run: make install-wasi-sdk
-    - run: make vwasi
+    - run: make vwasip1
+    - run: make vwasip2
     - run: |
         git clone https://github.com/juj/emsdk.git
         cd emsdk
@@ -110,7 +111,8 @@ jobs:
         registry-url: 'https://registry.npmjs.org'
     - run: npm ci
     - run: make install-wasi-sdk
-    - run: make vwasi
+    - run: make vwasip1
+    - run: make vwasip2
     - run: choco install make -y
     - run: choco install gnuwin32-coreutils.portable -y
     - uses: actions/setup-python@v5
diff --git a/.npmignore b/.npmignore
index 00a9e18b4..9922d52bf 100644
--- a/.npmignore
+++ b/.npmignore
@@ -11,9 +11,7 @@
 !/dist/wasm32-unknown-emscripten/release/*.*
 !/dist/wasm32-unknown-emscripten/debug/*.*
 !/dist/wasm32-unknown-emscripten/profile/*.*
-!/dist/wasm32-wasi/release/*.*
-!/dist/wasm32-wasi/debug/*.*
-!/dist/wasm32-wasi/profile/*.*
+!/dist/wasm32-wasi*/**
 
 !/source/core/*.js
 /source/core/library_*.js
diff --git a/Makefile b/Makefile
index fc3e2db91..eea6413a3 100644
--- a/Makefile
+++ b/Makefile
@@ -16,8 +16,8 @@ simple v32 v64 help:
 vjs js:
 	cd make-it && make vjs
 
-vwasi:
-	cd make-it && make vwasi TARGET=wasm32-wasip2
+vwasip1 vwasip2:
+	cd make-it && make $@
 
 install-wasi-sdk:
 	cd make-it && make install-wasi-sdk
diff --git a/make-it/EmMakefile b/make-it/EmMakefile
index c8d4eebe7..13d9aad62 100644
--- a/make-it/EmMakefile
+++ b/make-it/EmMakefile
@@ -9,7 +9,7 @@ MKDIR="mkdir"
 
 VIREO_SDK=..
 
-TARGETS_SUPPORTED=asmjs-unknown-emscripten wasm32-unknown-emscripten wasm32-wasip2
+TARGETS_SUPPORTED=asmjs-unknown-emscripten wasm32-unknown-emscripten wasm32-wasip1 wasm32-wasip2
 TARGET=wasm32-unknown-emscripten
 
 ifeq ($(filter $(TARGET), $(TARGETS_SUPPORTED)),)
@@ -88,7 +88,7 @@ else
     endif
 endif
 WASI_SDK_PATH=$(VIREO_SDK)/wasi-sdk-${WASI_VERSION_FULL}-${WASI_SDK_TARGET}
-WASI_CC=${WASI_SDK_PATH}/bin/clang++ --sysroot=${WASI_SDK_PATH}/share/wasi-sysroot --target=wasm32-wasip2
+WASI_CC=${WASI_SDK_PATH}/bin/clang++ --sysroot=${WASI_SDK_PATH}/share/wasi-sysroot --target=${TARGET}
 
 # release config
 EM_OPTFLAG = -O3
@@ -121,7 +121,7 @@ ifeq ($(TARGET), wasm32-unknown-emscripten)
    MAINOBJ =
 endif
 
-ifeq ($(TARGET), wasm32-wasip2)
+ifeq ($(filter wasm32-wasi, $(TARGET)),)
    EMCC=$(WASI_CC)
    TARGET_FLAG = -DkVireoOS_wasi -DVIREO_STDIO -DVIREO_FILESYSTEM -DVIREO_FILESYSTEM_DIRLIST
    MAINOBJ = $(OBJS)/main.bc
@@ -134,7 +134,7 @@ endif
 # NO_DYNAMIC_EXECUTION=1 Allows Vireo to be used in CSP environments where eval() is forbidden: https://github.com/kripken/emscripten/blob/master/src/settings.js#L563
 EM_OPT = $(EM_OPTFLAGS) $(TARGET_FLAG) -std=c++14 -fno-exceptions -Werror --memory-init-file 0 -s NO_DYNAMIC_EXECUTION=1 -s MODULARIZE=1 -s EXPORT_NAME=VireoCreateCoreModule -s EXPORT_ES6=1 -s USE_ES6_IMPORT_META=0 --minify 0 -s NO_FILESYSTEM=1 -s ABORTING_MALLOC=0
 WASI_OPT = $(EM_OPTFLAGS) $(TARGET_FLAG) -std=c++14 -fno-exceptions -Werror
-ifeq ($(TARGET), wasm32-wasip2)
+ifeq ($(filter wasm32-wasi, $(TARGET)),)
    EM_OPT=$(WASI_OPT)
 endif
 EMFLAGS = -I$(INCDIR) $(EM_OPT)
diff --git a/make-it/Makefile b/make-it/Makefile
index f4d08ab91..82e447685 100644
--- a/make-it/Makefile
+++ b/make-it/Makefile
@@ -196,8 +196,11 @@ lARMv5:
 vjs:
 	emmake make -f EmMakefile vjs
 
-vwasi:
-	make -f EmMakefile vwasi
+vwasip1:
+	make -f EmMakefile TARGET=wasm32-wasip1 vwasi
+
+vwasip2:
+	make -f EmMakefile TARGET=wasm32-wasip2 vwasi
 
 install-wasi-sdk:
 	make -f EmMakefile install-wasi-sdk
diff --git a/test-it/wasi.js b/test-it/wasi.js
index 269d2b67d..748dc5ac1 100644
--- a/test-it/wasi.js
+++ b/test-it/wasi.js
@@ -5,7 +5,7 @@
     const path = require('node:path');
     const {argv} = require('node:process');
     const wasm = await WebAssembly.compile(
-        await readFile(path.join(__dirname, '../dist/wasm32-wasi/release/vireo.wasm'))
+        await readFile(path.join(__dirname, '../dist/wasm32-wasip1/release/vireo.wasm'))
     );
     const wasi = new WASI({
         args: argv.slice(1),