diff --git a/.github/scripts/install_test_binaries.sh b/.github/scripts/install_test_binaries.sh
new file mode 100755
index 00000000..8c0634cd
--- /dev/null
+++ b/.github/scripts/install_test_binaries.sh
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+# Installs Solc and Geth binaries
+set -e
+
+GETH_BUILD=${GETH_BUILD:-"1.11.2-73b01f40"}
+SOLC_VERSION=${SOLC_VERSION:-"0.8.19"}
+
+DIR="$HOME/bin"
+# DIR="$HOME/github/danipopes/ethers-rs/test_bin"
+mkdir -p "$DIR"
+cd "$DIR"
+export PATH="$DIR:$PATH"
+
+echo "Installing Geth"
+PLATFORM="$(uname -s)"
+case "$PLATFORM" in
+    Linux|Darwin)
+        GETH_ARCHIVE_NAME="geth-${PLATFORM,,}-amd64-$GETH_BUILD"
+        curl "https://gethstore.blob.core.windows.net/builds/$GETH_ARCHIVE_NAME.tar.gz" | tar -xzvf -
+        mv -f "$GETH_ARCHIVE_NAME/geth" ./
+        rm -rf "$GETH_ARCHIVE_NAME"
+        chmod +x geth
+        ;;
+    *)
+        GETH_ARCHIVE_NAME="geth-windows-amd64-$GETH_BUILD"
+        wget -q "https://gethstore.blob.core.windows.net/builds/$GETH_ARCHIVE_NAME.zip"
+        unzip "$GETH_ARCHIVE_NAME.zip"
+        mv -f "$GETH_ARCHIVE_NAME/geth.exe" ./
+        rm -rf "$GETH_ARCHIVE_NAME" "$GETH_ARCHIVE_NAME.zip"
+        ;;
+esac
+
+geth version
+
+echo "Installing Solc"
+cargo install --locked svm-rs
+# install only if it doesn't exist already
+if command -v solc; then
+    if [ -z "$(solc --version | grep "$SOLC_VERSION" || true)" ]; then
+        svm install "$SOLC_VERSION"
+    fi
+    svm use "$SOLC_VERSION"
+fi
+
+solc --version
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 16d62793..ea878283 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,11 +1,10 @@
+name: CI
+
 on:
     push:
-        branches:
-            - master
+        branches: [master]
     pull_request:
 
-name: Tests
-
 # Yeah I know it's bad practice to have API keys, this is a read-only API key
 # so that we do not get rate limited by Etherscan (and it's free to generate as
 # many as you want)
@@ -13,215 +12,181 @@ env:
     ETHERSCAN_API_KEY_ETHEREUM: I5BXNZYP5GEDWFINGVEZKYIVU2695NPQZB
     ETHERSCAN_API_KEY_CELO: B13XSMUT6Q3Q4WZ5DNQR8RXDBA2KNTMT4M
     GOERLI_PRIVATE_KEY: "fa4a1a79e869a96fcb42727f75e3232d6865a82ea675bb95de967a7fe6a773b2"
-    GETH_BUILD: 1.10.26-e5eb32ac
+    GETH_BUILD: "1.11.2-73b01f40"
+    SOLC_VERSION: "0.8.19"
+    RUSTFLAGS: "-D warnings"
 
 jobs:
     tests:
-        name: ethereum tests
-        runs-on: ubuntu-latest
+        name: tests ${{ matrix.toolchain }}-${{ matrix.job.target }}
+        runs-on: ${{ matrix.job.os }}
+        strategy:
+            fail-fast: false
+            matrix:
+                job:
+                    - os: ubuntu-latest
+                      target: x86_64-unknown-linux-gnu
+                    - os: macos-latest
+                      target: x86_64-apple-darwin
+                    - os: windows-latest
+                      target: x86_64-pc-windows-msvc
+                    - os: ubuntu-latest
+                      target: wasm32-unkown-unkown
+                toolchain: ["stable", "nightly"]
         steps:
-            - name: Checkout sources
-              uses: actions/checkout@v3
+            - uses: actions/checkout@v3
+            - uses: dtolnay/rust-toolchain@master
+              with:
+                  toolchain: ${{ matrix.toolchain }}
+                  targets: ${{ matrix.job.target }}
             - name: Install Anvil
               uses: foundry-rs/foundry-toolchain@v1
               with:
                   version: nightly
-            - name: Install Solc
-              run: |
-                  mkdir -p "$HOME/bin"
-                  wget -q https://github.com/ethereum/solidity/releases/download/v0.8.10/solc-static-linux -O $HOME/bin/solc
-                  chmod u+x "$HOME/bin/solc"
-                  export PATH=$HOME/bin:$PATH
-                  solc --version
-
-            - name: Install geth
-              run: |
-                  mkdir -p "$HOME/bin"
-                  wget -q https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-$GETH_BUILD.tar.gz
-                  tar -xvf geth-linux-amd64-$GETH_BUILD.tar.gz
-                  mv geth-linux-amd64-$GETH_BUILD/geth $HOME/bin/geth
-                  chmod u+x "$HOME/bin/geth"
-                  export PATH=$HOME/bin:$PATH
-                  geth version
-            - name: Install stable toolchain
-              uses: actions-rs/toolchain@v1
-              with:
-                  profile: minimal
-                  toolchain: stable
-                  override: true
-                  components: rustfmt, clippy
-            - uses: Swatinem/rust-cache@v1
+            - name: Install test binaries
+              shell: bash
+              run: ./.github/scripts/install_test_binaries.sh
+            - uses: Swatinem/rust-cache@v2
               with:
                   cache-on-failure: true
-            - name: cargo test
+            - name: test
+              shell: bash
               run: |
-                  export PATH=$HOME/bin:$PATH
-                  export ETHERSCAN_API_KEY=$ETHERSCAN_API_KEY_ETHEREUM
-                  cargo test
+                  export ETHERSCAN_API_KEY="$ETHERSCAN_API_KEY_ETHEREUM"
+                  rustup run ${{ matrix.toolchain }}-${{ matrix.job.target }} cargo test --workspace
 
     feature-tests:
-        name: celo tests
-        runs-on: ubuntu-latest
+        name: feature tests ${{ matrix.toolchain }}-${{ matrix.job.target }}
+        runs-on: ${{ matrix.job.os }}
+        strategy:
+            fail-fast: false
+            matrix:
+                job:
+                    - os: ubuntu-latest
+                      target: x86_64-unknown-linux-gnu
+                    - os: macos-latest
+                      target: x86_64-apple-darwin
+                    - os: windows-latest
+                      target: x86_64-pc-windows-msvc
+                toolchain: ["stable", "nightly"]
         steps:
-            - name: Checkout sources
-              uses: actions/checkout@v3
-            # TODO: can we combine these shared steps in github actions?
+            - uses: actions/checkout@v3
+            - uses: dtolnay/rust-toolchain@master
+              with:
+                  toolchain: ${{ matrix.toolchain }}
+                  targets: ${{ matrix.job.target }}
             - name: Install Anvil
               uses: foundry-rs/foundry-toolchain@v1
               with:
                   version: nightly
-            - name: Install Solc
-              run: |
-                  mkdir -p "$HOME/bin"
-                  wget -q https://github.com/ethereum/solidity/releases/download/v0.8.10/solc-static-linux -O $HOME/bin/solc
-                  chmod u+x "$HOME/bin/solc"
-                  export PATH=$HOME/bin:$PATH
-                  solc --version
-            - name: Install geth
-              run: |
-                  mkdir -p "$HOME/bin"
-                  wget -q https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-$GETH_BUILD.tar.gz
-                  tar -xvf geth-linux-amd64-$GETH_BUILD.tar.gz
-                  mv geth-linux-amd64-$GETH_BUILD/geth $HOME/bin/geth
-                  chmod u+x "$HOME/bin/geth"
-                  export PATH=$HOME/bin:$PATH
-                  geth version
-
-            - name: Install stable toolchain
-              uses: actions-rs/toolchain@v1
-              with:
-                  profile: minimal
-                  toolchain: stable
-                  override: true
-                  components: rustfmt, clippy
-            - uses: Swatinem/rust-cache@v1
+            - name: Install test binaries
+              shell: bash
+              run: ./.github/scripts/install_test_binaries.sh
+            - uses: Swatinem/rust-cache@v2
               with:
                   cache-on-failure: true
-            - name: cargo test (Celo)
+            - name: test
+              shell: bash
               run: |
-                  export PATH=$HOME/bin:$PATH
-                  export ETHERSCAN_API_KEY=$ETHERSCAN_API_KEY_CELO
-                  cargo test --all-features
+                  export ETHERSCAN_API_KEY="$ETHERSCAN_API_KEY_CELO"
+                  rustup run ${{ matrix.toolchain }}-${{ matrix.job.target }} cargo test --workspace
 
-    lint:
-        name: lints
+    features:
+        name: features
         runs-on: ubuntu-latest
         steps:
-            - name: Checkout sources
-              uses: actions/checkout@v3
-            - name: Install toolchain
-              uses: actions-rs/toolchain@v1
+            - uses: actions/checkout@v3
+            - uses: dtolnay/rust-toolchain@nightly
+            - uses: Swatinem/rust-cache@v2
+            - uses: taiki-e/install-action@cargo-hack
+            - name: cargo hack
+              run:
+                  cargo hack check --all --feature-powerset --depth 2 -Z avoid-dev-deps --keep-going
+
+    clippy:
+        name: clippy
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v3
+            - uses: dtolnay/rust-toolchain@nightly
               with:
-                  toolchain: nightly
-                  profile: minimal
-                  components: rustfmt, clippy
-                  override: true
-            - uses: Swatinem/rust-cache@v1
-              with:
-                  cache-on-failure: true
-            - name: cargo fmt
-              run: cargo +nightly fmt --all -- --check
-            - name: cargo clippy
-              run: cargo +nightly clippy --all-features -- -D warnings
+                  components: clippy
+            - uses: Swatinem/rust-cache@v2
+            - name: clippy
+              run: cargo clippy --workspace --tests --all-features
 
     docs:
         name: docs
         runs-on: ubuntu-latest
         steps:
-            - name: Checkout sources
-              uses: actions/checkout@v3
-            - name: Install toolchain
-              uses: actions-rs/toolchain@v1
+            - uses: actions/checkout@v3
+            - uses: dtolnay/rust-toolchain@master
               with:
-                  toolchain: nightly
-                  override: true
-            - uses: Swatinem/rust-cache@v1
+                  # TODO: Remove nightly override: rust-lang/rust#{108334,108378}
+                  toolchain: nightly-2023-02-07
+                  components: rust-docs
+            - uses: Swatinem/rust-cache@v2
+            - name: doc
+              run: cargo doc --lib --workspace --all-features
+
+    fmt:
+        name: fmt
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v3
+            - uses: dtolnay/rust-toolchain@nightly
               with:
-                  cache-on-failure: true
-            - name: cargo doc
-              run: cargo +nightly doc --lib --all-features
-              env:
-                  RUSTFLAGS: --cfg docsrs
-                  RUSTDOCFLAGS: --cfg docsrs -Dwarnings
+                  components: rustfmt
+            - name: fmt --check
+              run: cargo fmt --all --check
 
     wasm:
         name: WASM
         runs-on: ubuntu-latest
-
         steps:
-            - name: Checkout sources
-              uses: actions/checkout@v3
-            - name: Install rust
-              uses: actions-rs/toolchain@v1
+            - uses: actions/checkout@v3
+            - uses: dtolnay/rust-toolchain@stable
               with:
-                  toolchain: stable
                   target: wasm32-unknown-unknown
-                  profile: minimal
-                  override: true
-
             - name: Install Anvil
               uses: foundry-rs/foundry-toolchain@v1
               with:
                   version: nightly
 
-            - uses: Swatinem/rust-cache@v1
+            - uses: Swatinem/rust-cache@v2
               with:
                   cache-on-failure: true
-
             - name: Check
-              uses: actions-rs/cargo@v1
-              with:
-                  command: check
-                  args: --target wasm32-unknown-unknown
-
-            - name: Launch Anvil
-              run:
-                  anvil --block-time 2 -m "stuff inherit faith park genre spread huge knee ecology
-                  private marble supreme" &
+              run: rustup run wasm32-unknown-unknown cargo check --workspace
+            - name: Check all features
+              run: rustup run wasm32-unknown-unknown cargo check --workspace --all-features
 
             - name: Install wasm-pack
               run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
-
-            - name: Wasm-pack test firefox
+            - uses: actions/setup-node@v3
+              with:
+                  node-version: 16
+                  cache: yarn
+            - name: Run wasm example
               run: |
                   cd examples/ethers-wasm
+                  yarn
+                  yarn anvil &
                   wasm-pack test --headless --firefox
-
-            - name: Wasm-pack test chrome
-              run: |
-                  cd examples/ethers-wasm
                   wasm-pack test --headless --chrome
+                  kill %1
 
     examples:
         name: Examples
         runs-on: ubuntu-latest
         steps:
-            - name: Checkout sources
-              uses: actions/checkout@v3
-
-            - name: Install geth (for state overrides example)
-              run: |
-                  mkdir -p "$HOME/bin"
-                  wget -q https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-$GETH_BUILD.tar.gz
-                  tar -xvf geth-linux-amd64-$GETH_BUILD.tar.gz
-                  mv geth-linux-amd64-$GETH_BUILD/geth $HOME/bin/geth
-                  chmod u+x "$HOME/bin/geth"
-                  export PATH=$HOME/bin:$PATH
-                  geth version
-
+            - uses: actions/checkout@v3
             - name: Install Anvil
               uses: foundry-rs/foundry-toolchain@v1
               with:
                   version: nightly
-
-            - name: Install Solc
-              run: |
-                  mkdir -p "$HOME/bin"
-                  wget -q https://github.com/ethereum/solidity/releases/download/v0.8.10/solc-static-linux -O $HOME/bin/solc
-                  chmod u+x "$HOME/bin/solc"
-                  export PATH=$HOME/bin:$PATH
-                  solc --version
-
+            - name: Install test binaries
+              run: ./.github/scripts/install_test_binaries.sh
             - name: Install stable toolchain
               uses: actions-rs/toolchain@v1
               with:
@@ -229,60 +194,57 @@ jobs:
                   toolchain: stable
                   override: true
                   components: rustfmt, clippy
-            - uses: Swatinem/rust-cache@v1
+            - uses: Swatinem/rust-cache@v2
               with:
                   cache-on-failure: true
             - name: Build and run all examples
-              run: |
-                  export PATH=$HOME/bin:$PATH
-                  chmod +x ./scripts/examples.sh
-                  ./scripts/examples.sh
+              run: ./scripts/examples.sh
 
-    windows-build:
-        runs-on: windows-latest
-        name: (${{ matrix.target }}, ${{ matrix.cfg_release_channel }})
-        env:
-            CFG_RELEASE_CHANNEL: ${{ matrix.cfg_release_channel }}
-        strategy:
-            fail-fast: false
-            matrix:
-                target:
-                    [
-                        i686-pc-windows-gnu,
-                        i686-pc-windows-msvc,
-                        x86_64-pc-windows-gnu,
-                        x86_64-pc-windows-msvc,
-                    ]
-                cfg_release_channel: [nightly]
+    # windows-build:
+    #     runs-on: windows-latest
+    #     name: (${{ matrix.target }}, ${{ matrix.cfg_release_channel }})
+    #     env:
+    #         CFG_RELEASE_CHANNEL: ${{ matrix.cfg_release_channel }}
+    #     strategy:
+    #         fail-fast: false
+    #         matrix:
+    #             target:
+    #                 [
+    #                     i686-pc-windows-gnu,
+    #                     i686-pc-windows-msvc,
+    #                     x86_64-pc-windows-gnu,
+    #                     x86_64-pc-windows-msvc,
+    #                 ]
+    #             cfg_release_channel: [nightly]
 
-        steps:
-            - name: checkout
-              uses: actions/checkout@v3
+    #     steps:
+    #         - name: checkout
+    #           uses: actions/checkout@v3
 
-              # Run build
-            - name: Update Rustup
-              run: |
-                  # disable download progress bar
-                  $ProgressPreference = "SilentlyContinue"
-                  rustup update
-                  rustup target add ${{ matrix.target }}
-              shell: powershell
+    #           # Run build
+    #         - name: Update Rustup
+    #           run: |
+    #               # disable download progress bar
+    #               $ProgressPreference = "SilentlyContinue"
+    #               rustup update
+    #               rustup target add ${{ matrix.target }}
+    #           shell: powershell
 
-            - name: Add mingw32 to path for i686-gnu
-              run: |
-                  echo "C:\msys64\mingw32\bin" >> $GITHUB_PATH
-              if: matrix.target == 'i686-pc-windows-gnu' && matrix.channel == 'nightly'
-              shell: bash
+    #         - name: Add mingw32 to path for i686-gnu
+    #           run: |
+    #               echo "C:\msys64\mingw32\bin" >> $GITHUB_PATH
+    #           if: matrix.target == 'i686-pc-windows-gnu' && matrix.channel == 'nightly'
+    #           shell: bash
 
-            - name: Add mingw64 to path for x86_64-gnu
-              run: echo "C:\msys64\mingw64\bin" >> $GITHUB_PATH
-              if: matrix.target == 'x86_64-pc-windows-gnu' && matrix.channel == 'nightly'
-              shell: bash
+    #         - name: Add mingw64 to path for x86_64-gnu
+    #           run: echo "C:\msys64\mingw64\bin" >> $GITHUB_PATH
+    #           if: matrix.target == 'x86_64-pc-windows-gnu' && matrix.channel == 'nightly'
+    #           shell: bash
 
-            - name: build
-              run: |
-                  rustc -Vv
-                  cargo -V
-                  # we test without --all-features on Windows so that sha2-asm is not activated.
-                  cargo check
-              shell: cmd
+    #         - name: build
+    #           run: |
+    #               rustc -Vv
+    #               cargo -V
+    #               # we test without --all-features on Windows so that sha2-asm is not activated.
+    #               cargo check
+    #           shell: cmd