diff --git a/Makefile b/Makefile
index 910258f..e877c18 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,10 @@ SHELL := bash # the shell used internally by Make
 
 GOBIN ?= $(shell which go)
 
+rlnlib-cross:
+	scripts/build-cross.sh
+	cd lib/rln && cbindgen --config ../cbindgen.toml --crate rln --output ../../rln/librln.h --lang c
+
 rlnlib:
 	scripts/build.sh
 	cd lib/rln && cbindgen --config ../cbindgen.toml --crate rln --output ../../rln/librln.h --lang c
diff --git a/README.md b/README.md
index ca426e8..8a31436 100644
--- a/README.md
+++ b/README.md
@@ -12,12 +12,34 @@ The goal of this is to create a rate-limiter for blockchains where block product
 after talking to the team at [Celestia](https://celestia.org/).
 
 
-###
-The following architectures require newer versions of glibc. 
+### Building this library
 
-- `x86_64-pc-windows-gnu`
-- `aarch64-unknown-linux-gnu`
-- `x86_64-unknown-linux-gnu`
-- `arm-unknown-linux-gnueabi`
+#### Using [cross](https://github.com/cross-rs)
 
-This [PR](https://github.com/cross-rs/cross/pull/591) will update ubuntu base version on cross. But while it's merged, follow the instructions from [here](https://github.com/cross-rs/cross/wiki/FAQ#newer-linux-versions) to locally build docker images for those architectures.
\ No newline at end of file
+```
+make rlnlibs-cross
+```
+
+Some architectures are not available in cross unless they're locally build. This [PR](https://github.com/cross-rs/cross/pull/591) will update ubuntu base version on cross. But while it's merged, build them locally. To build them locally execute the following instructions (adapted from [here](https://github.com/cross-rs/cross/wiki/FAQ#newer-linux-versions)):
+
+```
+git clone --single-branch --depth 1 --branch increment_versions https://github.com/Alexhuszagh/cross
+cd cross
+cargo build-docker-image x86_64-pc-windows-gnu
+cargo build-docker-image aarch64-unknown-linux-gnu
+cargo build-docker-image x86_64-unknown-linux-gnu
+cargo build-docker-image arm-unknown-linux-gnueabi
+cargo build-docker-image i686-pc-windows-gnu
+cargo build-docker-image i686-unknown-linux-gnu
+cargo build-docker-image arm-unknown-linux-gnueabihf
+cargo build-docker-image mips-unknown-linux-gnu
+cargo build-docker-image mips64-unknown-linux-gnuabi64
+cargo build-docker-image mips64el-unknown-linux-gnuabi64
+cargo build-docker-image mipsel-unknown-linux-gnu
+```
+
+#### Using [rustup](https://rust-lang.github.io/rustup/cross-compilation.html)
+
+```
+make rlnlibs-cross
+```
\ No newline at end of file
diff --git a/libs/arm-unknown-linux-gnueabihf/librln.d b/libs/arm-unknown-linux-gnueabihf/librln.d
new file mode 100644
index 0000000..82701e9
--- /dev/null
+++ b/libs/arm-unknown-linux-gnueabihf/librln.d
@@ -0,0 +1 @@
+/target/arm-unknown-linux-gnueabihf/release/librln.so: /project/src/circuit/mod.rs /project/src/circuit/polynomial.rs /project/src/circuit/poseidon.rs /project/src/circuit/rln.rs /project/src/ffi.rs /project/src/hash_to_field.rs /project/src/lib.rs /project/src/merkle.rs /project/src/poseidon.rs /project/src/public.rs /project/src/utils.rs /target/arm-unknown-linux-gnueabihf/release/build/num-bigint-c5d4eab0df01f46f/out/radix_bases.rs build.rs
diff --git a/libs/arm-unknown-linux-gnueabihf/librln.rlib b/libs/arm-unknown-linux-gnueabihf/librln.rlib
new file mode 100644
index 0000000..1e4998a
Binary files /dev/null and b/libs/arm-unknown-linux-gnueabihf/librln.rlib differ
diff --git a/libs/i686-pc-windows-gnu/librln.d b/libs/i686-pc-windows-gnu/librln.d
new file mode 100644
index 0000000..c240a71
--- /dev/null
+++ b/libs/i686-pc-windows-gnu/librln.d
@@ -0,0 +1 @@
+/target/i686-pc-windows-gnu/release/librln.rlib: /project/src/circuit/mod.rs /project/src/circuit/polynomial.rs /project/src/circuit/poseidon.rs /project/src/circuit/rln.rs /project/src/ffi.rs /project/src/hash_to_field.rs /project/src/lib.rs /project/src/merkle.rs /project/src/poseidon.rs /project/src/public.rs /project/src/utils.rs /target/i686-pc-windows-gnu/release/build/num-bigint-cab2a6b70097bfc3/out/radix_bases.rs build.rs
diff --git a/libs/i686-pc-windows-gnu/librln.dll.a b/libs/i686-pc-windows-gnu/librln.dll.a
new file mode 100644
index 0000000..1acf675
Binary files /dev/null and b/libs/i686-pc-windows-gnu/librln.dll.a differ
diff --git a/libs/i686-pc-windows-gnu/librln.rlib b/libs/i686-pc-windows-gnu/librln.rlib
new file mode 100644
index 0000000..8a8c777
Binary files /dev/null and b/libs/i686-pc-windows-gnu/librln.rlib differ
diff --git a/libs/i686-unknown-linux-gnu/librln.d b/libs/i686-unknown-linux-gnu/librln.d
new file mode 100644
index 0000000..3e5005b
--- /dev/null
+++ b/libs/i686-unknown-linux-gnu/librln.d
@@ -0,0 +1 @@
+/target/i686-unknown-linux-gnu/release/librln.so: /project/src/circuit/mod.rs /project/src/circuit/polynomial.rs /project/src/circuit/poseidon.rs /project/src/circuit/rln.rs /project/src/ffi.rs /project/src/hash_to_field.rs /project/src/lib.rs /project/src/merkle.rs /project/src/poseidon.rs /project/src/public.rs /project/src/utils.rs /target/i686-unknown-linux-gnu/release/build/num-bigint-b0e1c075ff9f6d68/out/radix_bases.rs build.rs
diff --git a/libs/i686-unknown-linux-gnu/librln.rlib b/libs/i686-unknown-linux-gnu/librln.rlib
new file mode 100644
index 0000000..7e9e39b
Binary files /dev/null and b/libs/i686-unknown-linux-gnu/librln.rlib differ
diff --git a/libs/mips-unknown-linux-gnu/librln.d b/libs/mips-unknown-linux-gnu/librln.d
new file mode 100644
index 0000000..0c3f27e
--- /dev/null
+++ b/libs/mips-unknown-linux-gnu/librln.d
@@ -0,0 +1 @@
+/target/mips-unknown-linux-gnu/release/librln.so: /project/src/circuit/mod.rs /project/src/circuit/polynomial.rs /project/src/circuit/poseidon.rs /project/src/circuit/rln.rs /project/src/ffi.rs /project/src/hash_to_field.rs /project/src/lib.rs /project/src/merkle.rs /project/src/poseidon.rs /project/src/public.rs /project/src/utils.rs /target/mips-unknown-linux-gnu/release/build/num-bigint-2a58e28365905d0a/out/radix_bases.rs build.rs
diff --git a/libs/mips-unknown-linux-gnu/librln.rlib b/libs/mips-unknown-linux-gnu/librln.rlib
new file mode 100644
index 0000000..ef12d55
Binary files /dev/null and b/libs/mips-unknown-linux-gnu/librln.rlib differ
diff --git a/libs/mips64-unknown-linux-gnuabi64/librln.d b/libs/mips64-unknown-linux-gnuabi64/librln.d
new file mode 100644
index 0000000..95c46ff
--- /dev/null
+++ b/libs/mips64-unknown-linux-gnuabi64/librln.d
@@ -0,0 +1 @@
+/target/mips64-unknown-linux-gnuabi64/release/librln.so: /project/src/circuit/mod.rs /project/src/circuit/polynomial.rs /project/src/circuit/poseidon.rs /project/src/circuit/rln.rs /project/src/ffi.rs /project/src/hash_to_field.rs /project/src/lib.rs /project/src/merkle.rs /project/src/poseidon.rs /project/src/public.rs /project/src/utils.rs /target/mips64-unknown-linux-gnuabi64/release/build/num-bigint-a70850dcc99c7fb1/out/radix_bases.rs build.rs
diff --git a/libs/mips64-unknown-linux-gnuabi64/librln.rlib b/libs/mips64-unknown-linux-gnuabi64/librln.rlib
new file mode 100644
index 0000000..c3b6d38
Binary files /dev/null and b/libs/mips64-unknown-linux-gnuabi64/librln.rlib differ
diff --git a/libs/mips64el-unknown-linux-gnuabi64/librln.d b/libs/mips64el-unknown-linux-gnuabi64/librln.d
new file mode 100644
index 0000000..3ceaf0f
--- /dev/null
+++ b/libs/mips64el-unknown-linux-gnuabi64/librln.d
@@ -0,0 +1 @@
+/target/mips64el-unknown-linux-gnuabi64/release/librln.so: /project/src/circuit/mod.rs /project/src/circuit/polynomial.rs /project/src/circuit/poseidon.rs /project/src/circuit/rln.rs /project/src/ffi.rs /project/src/hash_to_field.rs /project/src/lib.rs /project/src/merkle.rs /project/src/poseidon.rs /project/src/public.rs /project/src/utils.rs /target/mips64el-unknown-linux-gnuabi64/release/build/num-bigint-0b729d8fe959893e/out/radix_bases.rs build.rs
diff --git a/libs/mips64el-unknown-linux-gnuabi64/librln.rlib b/libs/mips64el-unknown-linux-gnuabi64/librln.rlib
new file mode 100644
index 0000000..8a244c7
Binary files /dev/null and b/libs/mips64el-unknown-linux-gnuabi64/librln.rlib differ
diff --git a/libs/mipsel-unknown-linux-gnu/librln.d b/libs/mipsel-unknown-linux-gnu/librln.d
new file mode 100644
index 0000000..0705146
--- /dev/null
+++ b/libs/mipsel-unknown-linux-gnu/librln.d
@@ -0,0 +1 @@
+/target/mipsel-unknown-linux-gnu/release/librln.so: /project/src/circuit/mod.rs /project/src/circuit/polynomial.rs /project/src/circuit/poseidon.rs /project/src/circuit/rln.rs /project/src/ffi.rs /project/src/hash_to_field.rs /project/src/lib.rs /project/src/merkle.rs /project/src/poseidon.rs /project/src/public.rs /project/src/utils.rs /target/mipsel-unknown-linux-gnu/release/build/num-bigint-23ad468891d1fc36/out/radix_bases.rs build.rs
diff --git a/libs/mipsel-unknown-linux-gnu/librln.rlib b/libs/mipsel-unknown-linux-gnu/librln.rlib
new file mode 100644
index 0000000..7e9f564
Binary files /dev/null and b/libs/mipsel-unknown-linux-gnu/librln.rlib differ
diff --git a/libs/x86_64-apple-darwin/librln.d b/libs/x86_64-apple-darwin/librln.d
deleted file mode 100644
index eca7915..0000000
--- a/libs/x86_64-apple-darwin/librln.d
+++ /dev/null
@@ -1 +0,0 @@
-/Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/target/x86_64-apple-darwin/release/librln.dylib: /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/circuit/mod.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/circuit/polynomial.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/circuit/poseidon.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/circuit/rln.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/ffi.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/lib.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/merkle.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/poseidon.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/public.rs /Users/deaneigenmann/go/src/github.com/decanus/go-rln/lib/rln/src/utils.rs
diff --git a/libs/x86_64-apple-darwin/librln.rlib b/libs/x86_64-apple-darwin/librln.rlib
deleted file mode 100644
index 2f5185f..0000000
Binary files a/libs/x86_64-apple-darwin/librln.rlib and /dev/null differ
diff --git a/scripts/Cross.toml b/scripts/Cross.toml
index 5d49cab..6a32952 100644
--- a/scripts/Cross.toml
+++ b/scripts/Cross.toml
@@ -9,3 +9,24 @@ image = "ghcr.io/cross-rs/x86_64-unknown-linux-gnu:local"
 
 [target.arm-unknown-linux-gnueabi]
 image = "ghcr.io/cross-rs/arm-unknown-linux-gnueabi:local"
+
+[target.i686-pc-windows-gnu]
+image = "ghcr.io/cross-rs/i686-pc-windows-gnu:local"
+
+[target.i686-unknown-linux-gnu]
+image = "ghcr.io/cross-rs/i686-unknown-linux-gnu:local"
+
+[target.arm-unknown-linux-gnueabihf]
+image = "ghcr.io/cross-rs/arm-unknown-linux-gnueabihf:local"
+
+[target.mips-unknown-linux-gnu]
+image = "ghcr.io/cross-rs/mips-unknown-linux-gnu:local"
+
+[target.mips64-unknown-linux-gnuabi64]
+image = "ghcr.io/cross-rs/mips64-unknown-linux-gnuabi64:local"
+
+[target.mips64el-unknown-linux-gnuabi64]
+image = "ghcr.io/cross-rs/mips64el-unknown-linux-gnuabi64:local"
+
+[target.mipsel-unknown-linux-gnu]
+image = "ghcr.io/cross-rs/mipsel-unknown-linux-gnu:local"
diff --git a/scripts/build-cross.sh b/scripts/build-cross.sh
new file mode 100755
index 0000000..0ddfbf1
--- /dev/null
+++ b/scripts/build-cross.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+
+DIRECTORY=./libs
+if [[ -d "$DIRECTORY" ]]
+then
+    echo "$DIRECTORY exists on your filesystem. Delete it and run the script again."
+    exit 0
+fi
+
+export RUSTFLAGS="-Ccodegen-units=1"
+export CROSS_CONFIG="$PWD/scripts/Cross.toml"
+
+rustup default stable
+
+cargo install cross --git https://github.com/cross-rs/cross --branch main
+cargo install cargo-lipo
+# cargo install cargo-strip
+
+pushd lib/rln
+
+cargo clean
+
+cross build --release --lib --target=aarch64-linux-android
+cross build --release --lib --target=armv7-linux-androideabi
+cross build --release --lib --target=i686-linux-android
+cross build --release --lib --target=x86_64-linux-android
+cross build --release --lib --target=x86_64-unknown-linux-musl
+
+# These depend on https://github.com/cross-rs/cross/pull/591 being merged
+# In the meantime, we can follow the instructions from here
+# https://github.com/cross-rs/cross/wiki/FAQ#newer-linux-versions
+# to build the docker images locally. Once that PR is merged,
+# remove the CROSS_CONFIG variable and Cross.toml file
+
+cross build --release --lib --target=x86_64-pc-windows-gnu
+cross build --release --lib --target=aarch64-unknown-linux-gnu
+cross build --release --lib --target=x86_64-unknown-linux-gnu
+cross build --release --lib --target=arm-unknown-linux-gnueabi
+cross build --release --lib --target=i686-pc-windows-gnu
+cross build --release --lib --target=i686-unknown-linux-gnu
+cross build --release --lib --target=arm-unknown-linux-gnueabihf
+cross build --release --lib --target=mips-unknown-linux-gnu
+cross build --release --lib --target=mips64-unknown-linux-gnuabi64
+cross build --release --lib --target=mips64el-unknown-linux-gnuabi64
+cross build --release --lib --target=mipsel-unknown-linux-gnu
+
+# TODO: these work only on iOS
+rustup target add aarch64-apple-ios x86_64-apple-ios
+cross build --release --target=x86_64-apple-darwin --lib
+cross build --release --target=aarch64-apple-darwin --lib
+cargo lipo --release --targets=aarch64-apple-ios,x86_64-apple-ios
+
+popd
+
+TOOLS_DIR=`dirname $0`
+COMPILE_DIR=${TOOLS_DIR}/../lib/rln/target
+rm -rf $COMPILE_DIR/x86_64-apple-ios $COMPILE_DIR/aarch64-apple-ios
+for platform in `ls ${COMPILE_DIR} | grep -v release | grep -v debug`
+do
+  PLATFORM_DIR=${DIRECTORY}/$platform
+  mkdir -p ${PLATFORM_DIR}
+  cp ${COMPILE_DIR}/$platform/release/librln.* ${PLATFORM_DIR}
+done
diff --git a/scripts/build.sh b/scripts/build.sh
index 792912d..8b9d194 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -7,48 +7,46 @@ then
     exit 0
 fi
 
-export RUSTFLAGS="-Ccodegen-units=1"
-export CROSS_CONFIG="$PWD/scripts/Cross.toml"
-
 pushd lib/rln
 
-rustup default stable
+export RUSTFLAGS="-Ccodegen-units=1"
+rustup default 1.52.1
+cargo install cargo-lipo -f
+cargo install cargo-strip -f
 
-cargo install cross --git https://github.com/cross-rs/cross --branch main
-cargo install cargo-lipo
-# cargo install cargo-strip
-
-cross build --release --lib --target=aarch64-linux-android
-cross build --release --lib --target=armv7-linux-androideabi
-cross build --release --lib --target=i686-linux-android
-cross build --release --lib --target=x86_64-linux-android
-cross build --release --lib --target=x86_64-unknown-linux-musl
-
-#cross build --release --lib --target=arm-unknown-linux-gnueabihf
-#cross build --release --lib --target=i686-unknown-linux-gnu
-#cross build --release --lib --target=mips-unknown-linux-gnu
-#cross build --release --lib --target=mips64-unknown-linux-gnuabi64
-#cross build --release --lib --target=mips64el-unknown-linux-gnuabi64
-#cross build --release --lib --target=mipsel-unknown-linux-gnu
-#cross build --release --lib --target=i686-pc-windows-gnu
-
-# These depend on https://github.com/cross-rs/cross/pull/591 being merged
-# In the meantime, we can follow the instructions from here
-# https://github.com/cross-rs/cross/wiki/FAQ#newer-linux-versions
-# to build the docker images locally. Once that PR is merged,
-# remove the CROSS_CONFIG variable and Cross.toml file
-
-cross build --release --lib --target=x86_64-pc-windows-gnu
-cross build --release --lib --target=aarch64-unknown-linux-gnu
-cross build --release --lib --target=x86_64-unknown-linux-gnu
-cross build --release --lib --target=arm-unknown-linux-gnueabi
-
-
-#rustup target add aarch64-apple-ios x86_64-apple-ios
-#cross build --release --target=x86_64-apple-darwin --lib
-#cross build --release --target=aarch64-apple-darwin --lib
-#cargo lipo --release --targets=aarch64-apple-ios,x86_64-apple-ios
+rustup target add x86_64-unknown-linux-gnu
+rustup target add aarch64-unknown-linux-gnu
+rustup target add x86_64-apple-darwin
+rustup target add aarch64-apple-darwin
+rustup target add x86_64-pc-windows-gnu
+rustup target add aarch64-linux-android
+rustup target add armv7-linux-androideabi
+rustup target add i686-linux-android
+rustup target add x86_64-linux-android
+rustup target add x86_64-unknown-linux-musl
+rustup target add aarch64-apple-ios x86_64-apple-ios
 
+cargo build --release --target=aarch64-linux-android --lib
+cargo strip --target aarch64-linux-android
+cargo build --release --target=armv7-linux-androideabi --lib
+cargo strip --target armv7-linux-androideabi
+cargo build --release --target=i686-linux-android --lib
+cargo strip --target i686-linux-android
+cargo build --release --target=x86_64-linux-android --lib
+cargo strip --target x86_64-linux-android
+cargo build --target=x86_64-unknown-linux-gnu --release
+cargo strip --target x86_64-unknown-linux-gnu
+cargo build --target=aarch64-unknown-linux-gnu --release
+cargo strip --target aarch64-unknown-linux-gnu
+cargo build --target=x86_64-apple-darwin --release
+cargo strip --target x86_64-apple-darwin
+cargo build --target=aarch64-apple-darwin --release
+cargo strip --target aarch64-apple-darwin
+cargo build --target=x86_64-pc-windows-gnu --release
+cargo strip --target x86_64-pc-windows-gnu
+cargo build --target=x86_64-unknown-linux-musl --release
+cargo strip --target x86_64-unknown-linux-musl
+cargo lipo --release --targets=aarch64-apple-ios,x86_64-apple-ios
 
 popd
 
@@ -60,4 +58,4 @@ do
   PLATFORM_DIR=${DIRECTORY}/$platform
   mkdir -p ${PLATFORM_DIR}
   cp ${COMPILE_DIR}/$platform/release/librln.* ${PLATFORM_DIR}
-done
+done
\ No newline at end of file