diff --git a/.cargo/config.toml b/.cargo/config.toml
deleted file mode 100644
index b7dd3e1..0000000
--- a/.cargo/config.toml
+++ /dev/null
@@ -1,7 +0,0 @@
-[target.x86_64-unknown-linux-gnu]
-linker = "x86_64-unknown-linux-gnu-gcc"
-[target.x86_64-unknown-linux-musl]
-linker = "x86_64-linux-musl-gcc"
-[target.x86_64-pc-windows-gnu]
-linker = "x86_64-w64-mingw32-gcc"
-ar = "x86_64-w64-mingw32-gcc-ar"
\ No newline at end of file
diff --git a/.github/workflows/prql-java-test.yaml b/.github/workflows/prql-java-test.yaml
index 07a4f51..9e05b14 100644
--- a/.github/workflows/prql-java-test.yaml
+++ b/.github/workflows/prql-java-test.yaml
@@ -1,13 +1,16 @@
 name: prql-java-test
+
 on:
+  push:
   pull_request:
     types: [ opened, reopened, synchronize, labeled ]
-  push:
-    branches:
-      - main
+
 jobs:
-  ubuntu-test:
-    runs-on: ubuntu-latest
+  junit-test:
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, macOS-latest ]
+    runs-on: ${{matrix.os}}
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
@@ -18,8 +21,4 @@ jobs:
           override: true
           default: true
       - name: Maven test
-        run: cd ./java-api && ./mvnw test
-#  macos-test:
-#    runs-on: macos-latest
-#  windows-test:
-#    runs-on: windows-latest
+        run: cd ./java/ && ./mvnw test
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
new file mode 100644
index 0000000..2b43593
--- /dev/null
+++ b/.github/workflows/release.yaml
@@ -0,0 +1,24 @@
+name: release
+on:
+  push:
+  release:
+    type: [published]
+
+jobs:
+  publish-to-maven:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Install Java and Maven
+        uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - name: Release Maven package
+        uses: samuelmeuli/action-maven-publish@v1
+        with:
+          gpg_private_key: ${{ secrets.gpg_private_key }}
+          gpg_passphrase: ${{ secrets.gpg_passphrase }}
+          nexus_username: ${{ secrets.nexus_username }}
+          nexus_password: ${{ secrets.nexus_password }}
+          directory: java/
diff --git a/.gitignore b/.gitignore
index 1c6f542..8979908 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,4 +26,4 @@ Cargo.lock
 
 target
 
-java-api/src/main/resources/libprql4j*
\ No newline at end of file
+**/libprql4j*
\ No newline at end of file
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..2472486
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "cross-toolchains"]
+	path = cross-toolchains
+	url = https://github.com/cross-rs/cross-toolchains.git
diff --git a/Cross.toml b/Cross.toml
new file mode 100644
index 0000000..1972f84
--- /dev/null
+++ b/Cross.toml
@@ -0,0 +1,4 @@
+[target.x86_64-apple-darwin.dockerfile]
+file = "./cross-toolchains/docker/Dockerfile.x86_64-apple-darwin-cross"
+[target.aarch64-apple-darwin.dockerfile]
+file = "./cross-toolchains/docker/Dockerfile.aarch64-apple-darwin-cross"
\ No newline at end of file
diff --git a/cross-toolchains b/cross-toolchains
new file mode 160000
index 0000000..9685bc3
--- /dev/null
+++ b/cross-toolchains
@@ -0,0 +1 @@
+Subproject commit 9685bc36ade526d8a6db5a569929cc28e7121748
diff --git a/cross.sh b/cross.sh
new file mode 100755
index 0000000..8ab28f0
--- /dev/null
+++ b/cross.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+
+PROJECT_DIR=$1
+echo PROJECT_DIR="${PROJECT_DIR}"
+CONTEXT_PATH=$(pwd)
+echo CONTEXT_PATH="${CONTEXT_PATH}"
+cd "${PROJECT_DIR}" || exit 1
+
+# install cross
+cargo install cross
+
+# x86_64-unknown-linux-gnu
+echo "compiling for x86_64-unknown-linux-gnu"
+rustup target add x86_64-unknown-linux-gnu
+cross build --release --target x86_64-unknown-linux-gnu
+ls -la target/x86_64-unknown-linux-gnu/release
+cp -f target/x86_64-unknown-linux-gnu/release/libprql4j.so java/src/main/resources/libprql4j-linux64.so
+
+# x86_64-apple-darwin
+echo "compiling for x86_64-apple-darwin"
+rustup target add x86_64-apple-darwin
+cross build --release --target x86_64-apple-darwin
+ls -la target/x86_64-apple-darwin/release
+cp target/x86_64-apple-darwin/release/libprql4j.dylib java/src/main/resources/libprql4j-osx-x86_64.dylib
+
+# x86_64-pc-windows-gnu
+echo "compiling for x86_64-pc-windows-gnu"
+rustup target add x86_64-pc-windows-gnu
+cross build --release --target x86_64-pc-windows-gnu
+ls -la target/x86_64-pc-windows-gnu/release
+cp -f target/x86_64-pc-windows-gnu/release/prql4j.dll java/src/main/resources/libprql4j-win64.dll
+
+# aarch64-unknown-linux-gnu
+echo "compiling for aarch64-unknown-linux-gnu"
+rustup target add aarch64-unknown-linux-gnu
+cross build --release --target aarch64-unknown-linux-gnu
+ls -la target/x86_64-unknown-linux-gnu/release
+cp -f target/x86_64-unknown-linux-gnu/release/libprql4j.so java/src/main/resources/libprql4j-linux-aarch64.so
+
+# aarch64-apple-darwin
+echo "compiling for aarch64-apple-darwin"
+rustup target add aarch64-apple-darwin
+cross build --release --target aarch64-apple-darwin
+ls -la target/x86_64-apple-darwin/release
+cp -f target/x86_64-apple-darwin/release/libprql4j.dylib java/src/main/resources/libprql4j-osx-arm64.dylib
+
+# x86_64-unknown-linux-musl
+echo "compiling for x86_64-unknown-linux-musl"
+rustup target add x86_64-unknown-linux-musl
+cross rustc --release --target x86_64-unknown-linux-musl -- --crate-type=dylib
+ls -la target/x86_64-unknown-linux-musl/release
+cp target/x86_64-unknown-linux-musl/release/libprql4j.so java/src/main/resources/libprql4j-linux64-musl.so
+
+# aarch64-unknown-linux-musl
+echo "compiling for aarch64-unknown-linux-musl"
+rustup target add aarch64-unknown-linux-musl
+cross rustc --release --target aarch64-unknown-linux-musl -- --crate-type=dylib
+ls -la target/aarch64-unknown-linux-musl/release
+cp -f target/aarch64-unknown-linux-musl/release/libprql4j.so java/src/main/resources/libprql4j-linux-aarch64-musl.so
+
+
+cd "${CONTEXT_PATH}" || exit 1
\ No newline at end of file
diff --git a/java-api/native_lib_build.sh b/java-api/native_lib_build.sh
deleted file mode 100755
index a3fb9bd..0000000
--- a/java-api/native_lib_build.sh
+++ /dev/null
@@ -1,31 +0,0 @@
-#!/bin/bash
-set -e
-
-echo "start cross compilations"
-
-cd ..
-
-echo "compile target=x86_64-unknown-linux-gnu"
-rustup target add x86_64-unknown-linux-gnu
-cargo build --release --target=x86_64-unknown-linux-gnu
-cp -f target/x86_64-unknown-linux-gnu/release/libprql4j.so java-api/src/main/resources/libprql4j-linux64.so
-
-echo "compile target=aarch64-unknown-linux-gnu"
-rustup target add aarch64-unknown-linux-gnu
-cargo build --release --target=aarch64-unknown-linux-gnu
-cp -f target/aarch64-unknown-linux-gnu/release/libprql4j.so java-api/src/main/resources/libprql4j-linux-aarch64.so
-
-echo "compile target=x86_64-apple-darwin"
-rustup target add x86_64-apple-darwin
-cargo build --release --target=x86_64-apple-darwin
-cp -f target/x86_64-apple-darwin/release/libprql4j.dylib java-api/src/main/resources/libprql4j-osx-x86_64.dylib
-
-echo "compile target=aarch64-apple-darwin"
-rustup target add aarch64-apple-darwin
-cargo build --release --target=aarch64-apple-darwin
-cp -f target/aarch64-apple-darwin/release/libprql4j.dylib java-api/src/main/resources/libprql4j-osx-arm64.dylib
-
-echo "compile target=x86_64-pc-windows-gnu"
-rustup target add x86_64-pc-windows-gnu
-cargo build --release --target=x86_64-pc-windows-gnu
-cp -f target/x86_64-pc-windows-gnu/release/prql4j.dll java-api/src/main/resources/libprql4j-win64.dll
\ No newline at end of file
diff --git a/java-api/pom.xml b/java-api/pom.xml
deleted file mode 100644
index b464f74..0000000
--- a/java-api/pom.xml
+++ /dev/null
@@ -1,63 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-  ~ Copyright 2022 doki23
-
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-
-    <groupId>org.doki23</groupId>
-    <artifactId>prql-java</artifactId>
-    <version>1.0-SNAPSHOT</version>
-
-    <properties>
-        <maven.compiler.target>1.8</maven.compiler.target>
-        <maven.compiler.source>1.8</maven.compiler.source>
-    </properties>
-
-    <dependencies>
-        <dependency>
-            <groupId>junit</groupId>
-            <artifactId>junit</artifactId>
-            <version>4.13.2</version>
-            <scope>test</scope>
-        </dependency>
-    </dependencies>
-
-    <build>
-        <plugins>
-            <plugin>
-                <artifactId>exec-maven-plugin</artifactId>
-                <groupId>org.codehaus.mojo</groupId>
-                <version>1.6.0</version>
-                <executions>
-                    <execution>
-                        <id>Run Script</id>
-                        <phase>initialize</phase>
-                        <goals>
-                            <goal>exec</goal>
-                        </goals>
-                        <configuration>
-                            <executable>native_lib_build.sh</executable>
-                        </configuration>
-                    </execution>
-                </executions>
-            </plugin>
-        </plugins>
-    </build>
-
-</project>
\ No newline at end of file
diff --git a/java-api/.mvn/wrapper/maven-wrapper.jar b/java/.mvn/wrapper/maven-wrapper.jar
similarity index 100%
rename from java-api/.mvn/wrapper/maven-wrapper.jar
rename to java/.mvn/wrapper/maven-wrapper.jar
diff --git a/java-api/.mvn/wrapper/maven-wrapper.properties b/java/.mvn/wrapper/maven-wrapper.properties
similarity index 100%
rename from java-api/.mvn/wrapper/maven-wrapper.properties
rename to java/.mvn/wrapper/maven-wrapper.properties
diff --git a/java-api/mvnw b/java/mvnw
similarity index 100%
rename from java-api/mvnw
rename to java/mvnw
diff --git a/java-api/mvnw.cmd b/java/mvnw.cmd
similarity index 100%
rename from java-api/mvnw.cmd
rename to java/mvnw.cmd
diff --git a/java/pom.xml b/java/pom.xml
new file mode 100644
index 0000000..ec8acc7
--- /dev/null
+++ b/java/pom.xml
@@ -0,0 +1,171 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2022 doki23
+
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>io.github.doki23</groupId>
+    <artifactId>prql-java</artifactId>
+    <version>0.0.3</version>
+
+    <name>${project.groupId}:${project.artifactId}</name>
+    <description>prql compiler api for java</description>
+    <url>https://github.com/doki23/prql-java</url>
+
+    <licenses>
+        <license>
+            <name>The Apache License, Version 2.0</name>
+            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+        </license>
+    </licenses>
+
+    <developers>
+        <developer>
+            <name>Jie Han</name>
+            <email>tunyum94@gmail.com</email>
+        </developer>
+    </developers>
+
+    <scm>
+        <connection>scm:git:git://github.com/doki23/prql-java.git</connection>
+        <developerConnection>scm:git:ssh://github.com:doki23/prql-java.git</developerConnection>
+        <url>http://github.com/simpligility/ossrh-demo/tree/master</url>
+    </scm>
+
+    <properties>
+        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.8</maven.compiler.source>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.2</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>exec-maven-plugin</artifactId>
+                <groupId>org.codehaus.mojo</groupId>
+                <version>1.6.0</version>
+                <executions>
+                    <execution>
+                        <id>Build for release</id>
+                        <phase>generate-resources</phase>
+                        <goals>
+                            <goal>exec</goal>
+                        </goals>
+                        <configuration>
+                            <executable>../cross.sh</executable>
+                            <arguments>
+                                <argument>${project.basedir}/../</argument>
+                            </arguments>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <groupId>org.sonatype.plugins</groupId>
+                <artifactId>nexus-staging-maven-plugin</artifactId>
+                <version>1.6.13</version>
+                <extensions>true</extensions>
+                <configuration>
+                    <serverId>ossrh</serverId>
+                    <nexusUrl>https://s01.oss.sonatype.org/</nexusUrl>
+                    <autoReleaseAfterClose>true</autoReleaseAfterClose>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-gpg-plugin</artifactId>
+                <version>1.5</version>
+                <executions>
+                    <execution>
+                        <id>sign-artifacts</id>
+                        <phase>verify</phase>
+                        <goals>
+                            <goal>sign</goal>
+                        </goals>
+                        <configuration>
+                            <gpgArguments>
+                                <arg>--pinentry-mode</arg>
+                                <arg>loopback</arg>
+                            </gpgArguments>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
+            <plugin>
+                <artifactId>maven-source-plugin</artifactId>
+                <version>3.1.0</version>
+                <executions>
+                    <execution>
+                        <id>attach-source</id>
+                        <phase>compile</phase>
+                        <goals>
+                            <goal>jar-no-fork</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <version>3.0.1</version>
+                <executions>
+                    <execution>
+                        <id>attach-javadocs</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+    <profiles>
+        <profile>
+            <id>deploy-snapshot</id>
+            <distributionManagement>
+                <snapshotRepository>
+                    <id>sonatype-nexus-snapshots</id>
+                    <name>Sonatype Nexus Snapshots</name>
+                    <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
+                </snapshotRepository>
+            </distributionManagement>
+        </profile>
+        <profile>
+            <id>deploy</id>
+            <distributionManagement>
+                <repository>
+                    <id>sonatype-nexus-staging</id>
+                    <name>Nexus Release Repository</name>
+                    <url>https://s01.oss.sonatype.org/service/local/staging/deploy/maven2</url>
+                </repository>
+            </distributionManagement>
+        </profile>
+    </profiles>
+</project>
\ No newline at end of file
diff --git a/java-api/src/main/java/org/doki23/prql4j/Environment.java b/java/src/main/java/org/doki23/prql4j/Environment.java
similarity index 100%
rename from java-api/src/main/java/org/doki23/prql4j/Environment.java
rename to java/src/main/java/org/doki23/prql4j/Environment.java
diff --git a/java-api/src/main/java/org/doki23/prql4j/NativeLibraryLoader.java b/java/src/main/java/org/doki23/prql4j/NativeLibraryLoader.java
similarity index 96%
rename from java-api/src/main/java/org/doki23/prql4j/NativeLibraryLoader.java
rename to java/src/main/java/org/doki23/prql4j/NativeLibraryLoader.java
index 7cbd9f9..d2f86ea 100644
--- a/java-api/src/main/java/org/doki23/prql4j/NativeLibraryLoader.java
+++ b/java/src/main/java/org/doki23/prql4j/NativeLibraryLoader.java
@@ -125,9 +125,4 @@ File loadLibraryFromJarToTemp(final String tmpDir)
 
     private NativeLibraryLoader() {
     }
-
-    public static void main(String[] args) {
-        NativeLibraryLoader loader = NativeLibraryLoader.getInstance();
-        System.out.println(loader);
-    }
 }
diff --git a/java-api/src/main/java/org/doki23/prql4j/PrqlCompiler.java b/java/src/main/java/org/doki23/prql4j/PrqlCompiler.java
similarity index 100%
rename from java-api/src/main/java/org/doki23/prql4j/PrqlCompiler.java
rename to java/src/main/java/org/doki23/prql4j/PrqlCompiler.java
diff --git a/java/src/main/resources/.gitkeep b/java/src/main/resources/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/java-api/src/test/java/org/doki23/prql4j/PrqlCompilerTest.java b/java/src/test/java/org/doki23/prql4j/PrqlCompilerTest.java
similarity index 100%
rename from java-api/src/test/java/org/doki23/prql4j/PrqlCompilerTest.java
rename to java/src/test/java/org/doki23/prql4j/PrqlCompilerTest.java