diff --git a/.github/workflows/on_main.yml b/.github/workflows/on_main.yml
index 78acf71..546a676 100644
--- a/.github/workflows/on_main.yml
+++ b/.github/workflows/on_main.yml
@@ -29,4 +29,14 @@ jobs:
           tags: |
             ghcr.io/near/rollup-data-availability/da-rpc:${{ github.sha }}
             ghcr.io/near/rollup-data-availability/da-rpc:latest
+
+      - name: Build "sidecar" Docker image and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          file: ./bin/http-api/Dockerfile
+          tags: |
+            ghcr.io/near/rollup-data-availability/http-api:${{ github.sha }}
+            ghcr.io/near/rollup-data-availability/http-api:latest
             
diff --git a/.github/workflows/on_pull_request.yml b/.github/workflows/on_pull_request.yml
index bf95127..a41db5c 100644
--- a/.github/workflows/on_pull_request.yml
+++ b/.github/workflows/on_pull_request.yml
@@ -6,24 +6,43 @@ on:
       - main
 
 jobs:
-  lint:
-    name: "Lint"
-    runs-on:
-      group: ubuntu-22.04-8core
+  changes:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
     steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          submodules: "recursive"
-      - uses: actions-rust-lang/setup-rust-toolchain@v1
-      - uses: Swatinem/rust-cache@v2
-      - name: 📜 Lint code format
-        uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: --all -- --check
-  test-rust:
-    name: "Test Rust"
+    # For pull requests it's not necessary to checkout the code
+    - uses: dorny/paths-filter@v3
+      id: filter
+      with:
+        filters: |
+          rust:
+            - '.github/**'
+            - '/**/*.rs'
+            - '/**/Cargo.toml'
+            - '/**/Cargo.lock'
+            - '/**/rust-toolchain**'
+            - 'flake.nix'
+            - 'flake.lock'
+          go:
+            - '.github/**'            
+            - '/**/*.go'
+            - '/**/go.mod'
+            - '/**/go.sum'
+            - '/**/gopkg.lock'
+          eth:  
+            - '.github/**'
+            - '/**/*.sol'
+            - 'eth/foundry.toml'
+            - 'eth/justfile'
+            - 'eth/package.json'
+    outputs:
+      rust: ${{ steps.filter.outputs.rust }}
+      go: ${{ steps.filter.outputs.go }}
+      eth: ${{ steps.filter.outputs.eth }}
+  rust:
+    needs: changes
+    if: ${{ needs.changes.outputs.rust == 'true' }}
     runs-on:
       group: ubuntu-22.04-16core
     steps:
@@ -37,6 +56,11 @@ jobs:
         uses: taiki-e/install-action@v2
         with:
           tool: nextest
+      - name: 📜 Lint code format
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
       - name: "Build contracts"
         run: make build-contracts
       - name: "Ensure target dir exists"
@@ -48,8 +72,9 @@ jobs:
       #   uses: orf/cargo-bloat-action@v1
       #   with:
       #     token: ${{ secrets.CEJAS_PERSONAL_ACCESS_TOKEN }} 
-  test-go:
-    name: "Test gopkg"
+  go:
+    needs: changes
+    if: ${{ needs.changes.outputs.go == 'true' }}
     runs-on:
       group: ubuntu-22.04-8core
     steps:
@@ -66,4 +91,49 @@ jobs:
       - name: "Test gopkg"
         working-directory: ./gopkg/da-rpc
         run: go test -v
-    
+
+  eth-contracts:
+    needs: changes
+    if: ${{ needs.changes.outputs.eth == 'true' }}
+    runs-on:
+      group: ubuntu-22.04-8core
+    defaults:
+      run:
+        working-directory: ./eth       
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: "Install Foundry"
+        uses: "foundry-rs/foundry-toolchain@v1"
+      - name: "Install Bun"
+        uses: "oven-sh/setup-bun@v1"
+      - name: "Install the Node.js dependencies"
+        run: "bun install"
+      - name: "Lint the code"
+        run: "bun run lint"
+      - name: "Add lint summary"
+        run: |
+          echo "## Lint result" >> $GITHUB_STEP_SUMMARY
+          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
+      - name: "Build the contracts and print their size"
+        run: "forge build --sizes"
+      - name: "Add build summary"
+        run: |
+          echo "## Build result" >> $GITHUB_STEP_SUMMARY
+          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
+      - name: "Show the Foundry config"
+        run: "forge config"
+      - name: "Generate a fuzz seed that changes weekly to avoid burning through RPC allowance"
+        run: >
+          echo "FOUNDRY_FUZZ_SEED=$(
+            echo $(($EPOCHSECONDS - $EPOCHSECONDS % 604800))
+          )" >> $GITHUB_ENV
+      - name: "Run the tests"
+        run: "forge test --gas-report"
+      - name: "Add test summary"
+        run: |
+          echo "## Tests result" >> $GITHUB_STEP_SUMMARY
+          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
diff --git a/eth/.githubtodo/scripts/rename.sh b/eth/.githubtodo/scripts/rename.sh
deleted file mode 100755
index 62e37dd..0000000
--- a/eth/.githubtodo/scripts/rename.sh
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/usr/bin/env bash
-
-# https://gist.github.com/vncsna/64825d5609c146e80de8b1fd623011ca
-set -euo pipefail
-
-# Define the input vars
-GITHUB_REPOSITORY=${1?Error: Please pass username/repo, e.g. prb/foundry-template}
-GITHUB_REPOSITORY_OWNER=${2?Error: Please pass username, e.g. prb}
-GITHUB_REPOSITORY_DESCRIPTION=${3:-""} # If null then replace with empty string
-
-echo "GITHUB_REPOSITORY: $GITHUB_REPOSITORY"
-echo "GITHUB_REPOSITORY_OWNER: $GITHUB_REPOSITORY_OWNER"
-echo "GITHUB_REPOSITORY_DESCRIPTION: $GITHUB_REPOSITORY_DESCRIPTION"
-
-# jq is like sed for JSON data
-JQ_OUTPUT=`jq \
-  --arg NAME "@$GITHUB_REPOSITORY" \
-  --arg AUTHOR_NAME "$GITHUB_REPOSITORY_OWNER" \
-  --arg URL "https://github.com/$GITHUB_REPOSITORY_OWNER" \
-  --arg DESCRIPTION "$GITHUB_REPOSITORY_DESCRIPTION" \
-  '.name = $NAME | .description = $DESCRIPTION | .author |= ( .name = $AUTHOR_NAME | .url = $URL )' \
-  package.json
-`
-
-# Overwrite package.json
-echo "$JQ_OUTPUT" > package.json
-
-# Make sed command compatible in both Mac and Linux environments
-# Reference: https://stackoverflow.com/a/38595160/8696958
-sedi () {
-  sed --version >/dev/null 2>&1 && sed -i -- "$@" || sed -i "" "$@"
-}
-
-# Rename instances of "PaulRBerg/foundry-template" to the new repo name in README.md for badges only
-sedi "/gitpod/ s|PaulRBerg/foundry-template|"${GITHUB_REPOSITORY}"|;" "README.md"
-sedi "/gitpod-badge/ s|PaulRBerg/foundry-template|"${GITHUB_REPOSITORY}"|;" "README.md"
-sedi "/gha/ s|PaulRBerg/foundry-template|"${GITHUB_REPOSITORY}"|;" "README.md"
-sedi "/gha-badge/ s|PaulRBerg/foundry-template|"${GITHUB_REPOSITORY}"|;" "README.md"
diff --git a/eth/.githubtodo/workflows/ci.yml b/eth/.githubtodo/workflows/ci.yml
deleted file mode 100644
index 7550749..0000000
--- a/eth/.githubtodo/workflows/ci.yml
+++ /dev/null
@@ -1,92 +0,0 @@
-name: "CI"
-
-env:
-  API_KEY_ALCHEMY: ${{ secrets.API_KEY_ALCHEMY }}
-  FOUNDRY_PROFILE: "ci"
-
-on:
-  workflow_dispatch:
-  pull_request:
-  push:
-    branches:
-      - "main"
-
-jobs:
-  lint:
-    runs-on: "ubuntu-latest"
-    steps:
-      - name: "Check out the repo"
-        uses: "actions/checkout@v4"
-
-      - name: "Install Foundry"
-        uses: "foundry-rs/foundry-toolchain@v1"
-
-      - name: "Install Bun"
-        uses: "oven-sh/setup-bun@v1"
-
-      - name: "Install the Node.js dependencies"
-        run: "bun install"
-
-      - name: "Lint the code"
-        run: "bun run lint"
-
-      - name: "Add lint summary"
-        run: |
-          echo "## Lint result" >> $GITHUB_STEP_SUMMARY
-          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
-
-  build:
-    runs-on: "ubuntu-latest"
-    steps:
-      - name: "Check out the repo"
-        uses: "actions/checkout@v4"
-
-      - name: "Install Foundry"
-        uses: "foundry-rs/foundry-toolchain@v1"
-
-      - name: "Install Bun"
-        uses: "oven-sh/setup-bun@v1"
-
-      - name: "Install the Node.js dependencies"
-        run: "bun install"
-
-      - name: "Build the contracts and print their size"
-        run: "forge build --sizes"
-
-      - name: "Add build summary"
-        run: |
-          echo "## Build result" >> $GITHUB_STEP_SUMMARY
-          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
-
-  test:
-    needs: ["lint", "build"]
-    runs-on: "ubuntu-latest"
-    steps:
-      - name: "Check out the repo"
-        uses: "actions/checkout@v4"
-
-      - name: "Install Foundry"
-        uses: "foundry-rs/foundry-toolchain@v1"
-
-      - name: "Install Bun"
-        uses: "oven-sh/setup-bun@v1"
-
-      - name: "Install the Node.js dependencies"
-        run: "bun install"
-
-      - name: "Show the Foundry config"
-        run: "forge config"
-
-      - name: "Generate a fuzz seed that changes weekly to avoid burning through RPC allowance"
-        run: >
-          echo "FOUNDRY_FUZZ_SEED=$(
-            echo $(($EPOCHSECONDS - $EPOCHSECONDS % 604800))
-          )" >> $GITHUB_ENV
-
-      - name: "Run the tests"
-        run: "forge test"
-
-      - name: "Add test summary"
-        run: |
-          echo "## Tests result" >> $GITHUB_STEP_SUMMARY
-          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
diff --git a/eth/.githubtodo/workflows/create.yml b/eth/.githubtodo/workflows/create.yml
deleted file mode 100644
index e0e9369..0000000
--- a/eth/.githubtodo/workflows/create.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-name: "Create"
-
-# The workflow will run only when the "Use this template" button is used
-on:
-  create:
-
-jobs:
-  create:
-    # We only run this action when the repository isn't the template repository. References:
-    # - https://docs.github.com/en/actions/learn-github-actions/contexts
-    # - https://docs.github.com/en/actions/learn-github-actions/expressions
-    if: ${{ !github.event.repository.is_template }}
-    permissions: "write-all"
-    runs-on: "ubuntu-latest"
-    steps:
-      - name: "Check out the repo"
-        uses: "actions/checkout@v4"
-
-      - name: "Update package.json"
-        env:
-          GITHUB_REPOSITORY_DESCRIPTION: ${{ github.event.repository.description }}
-        run:
-          ./.github/scripts/rename.sh "$GITHUB_REPOSITORY" "$GITHUB_REPOSITORY_OWNER" "$GITHUB_REPOSITORY_DESCRIPTION"
-
-      - name: "Add rename summary"
-        run: |
-          echo "## Commit result" >> $GITHUB_STEP_SUMMARY
-          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
-
-      - name: "Remove files not needed in the user's copy of the template"
-        run: |
-          rm -f "./.github/FUNDING.yml"
-          rm -f "./.github/scripts/rename.sh"
-          rm -f "./.github/workflows/create.yml"
-
-      - name: "Add remove summary"
-        run: |
-          echo "## Remove result" >> $GITHUB_STEP_SUMMARY
-          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
-
-      - name: "Update commit"
-        uses: "stefanzweifel/git-auto-commit-action@v4"
-        with:
-          commit_message: "feat: initial commit"
-          commit_options: "--amend"
-          push_options: "--force"
-          skip_fetch: true
-
-      - name: "Add commit summary"
-        run: |
-          echo "## Commit result" >> $GITHUB_STEP_SUMMARY
-          echo "✅ Passed" >> $GITHUB_STEP_SUMMARY
diff --git a/eth/.gitpod.yml b/eth/.gitpod.yml
deleted file mode 100644
index b9646d8..0000000
--- a/eth/.gitpod.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-image: "gitpod/workspace-bun"
-
-tasks:
-  - name: "Install dependencies"
-    before: |
-      curl -L https://foundry.paradigm.xyz | bash
-      source ~/.bashrc
-      foundryup
-    init: "bun install"
-
-vscode:
-  extensions:
-    - "esbenp.prettier-vscode"
-    - "NomicFoundation.hardhat-solidity"
diff --git a/eth/.vscode/settings.json b/eth/.vscode/settings.json
deleted file mode 100644
index 241108b..0000000
--- a/eth/.vscode/settings.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "[solidity]": {
-    "editor.defaultFormatter": "NomicFoundation.hardhat-solidity"
-  },
-  "[toml]": {
-    "editor.defaultFormatter": "tamasfe.even-better-toml"
-  },
-  "solidity.formatter": "forge"
-}
diff --git a/eth/README.md b/eth/README.md
index 1c04aaf..607ee4f 100644
--- a/eth/README.md
+++ b/eth/README.md
@@ -1,39 +1,3 @@
-# Foundry Template [![Open in Gitpod][gitpod-badge]][gitpod] [![Github Actions][gha-badge]][gha] [![Foundry][foundry-badge]][foundry] [![License: MIT][license-badge]][license]
-
-[gitpod]: https://gitpod.io/#https://github.com/PaulRBerg/foundry-template
-[gitpod-badge]: https://img.shields.io/badge/Gitpod-Open%20in%20Gitpod-FFB45B?logo=gitpod
-[gha]: https://github.com/PaulRBerg/foundry-template/actions
-[gha-badge]: https://github.com/PaulRBerg/foundry-template/actions/workflows/ci.yml/badge.svg
-[foundry]: https://getfoundry.sh/
-[foundry-badge]: https://img.shields.io/badge/Built%20with-Foundry-FFDB1C.svg
-[license]: https://opensource.org/licenses/MIT
-[license-badge]: https://img.shields.io/badge/License-MIT-blue.svg
-
-A Foundry-based template for developing Solidity smart contracts, with sensible defaults.
-
-## What's Inside
-
-- [Forge](https://github.com/foundry-rs/foundry/blob/master/forge): compile, test, fuzz, format, and deploy smart
-  contracts
-- [Forge Std](https://github.com/foundry-rs/forge-std): collection of helpful contracts and cheatcodes for testing
-- [PRBTest](https://github.com/PaulRBerg/prb-test): modern collection of testing assertions and logging utilities
-- [Prettier](https://github.com/prettier/prettier): code formatter for non-Solidity files
-- [Solhint](https://github.com/protofire/solhint): linter for Solidity code
-
-## Getting Started
-
-Click the [`Use this template`](https://github.com/PaulRBerg/foundry-template/generate) button at the top of the page to
-create a new repository with this repo as the initial state.
-
-Or, if you prefer to install the template manually:
-
-```sh
-$ mkdir my-project
-$ cd my-project
-$ forge init --template PaulRBerg/foundry-template
-$ bun install # install Solhint, Prettier, and other Node.js deps
-```
-
 If this is your first time with Foundry, check out the
 [installation](https://github.com/foundry-rs/foundry#installation) instructions.
 
diff --git a/eth/justfile b/eth/justfile
index 79a03e6..1c9cee6 100644
--- a/eth/justfile
+++ b/eth/justfile
@@ -1,6 +1,9 @@
 # Change this if you want to use it
 CDK_PATH := ~/projects/data-availability/cdk/cdk-validium-node
 
+cdk-local:
+  NEWCONTRACT=forge script Deploy --fork-url local --broadcast --legacy --json | jq -R 'fromjson?' | jq -r '.returns.da.value'
+  docker exec zkevm-sequence-sender /app/zkevm-node set-dap --da-addr $NEWCONTRACT --network custom --custom-network-file /app/genesis.json --key-store-path /pk/sequencer.keystore --pw testonly --cfg /app/config.toml
 gen-cdk:
   forge inspect NearDataAvailability abi > {{CDK_PATH}}/etherman/smartcontracts/abi/neardataavailability.abi
   forge inspect NearDataAvailability bytecode > {{CDK_PATH}}/etherman/smartcontracts/bin/neardataavailabil
diff --git a/eth/package.json b/eth/package.json
index a02fa92..7d56273 100644
--- a/eth/package.json
+++ b/eth/package.json
@@ -1,10 +1,10 @@
 {
-  "name": "@prb/foundry-template",
-  "description": "Foundry-based template for developing Solidity smart contracts",
+  "name": "@near/rollup-data-availability",
+  "description": "",
   "version": "1.0.0",
   "author": {
-    "name": "Paul Razvan Berg",
-    "url": "https://github.com/PaulRBerg"
+    "name": "dndll",
+    "url": "https://github.com/dndll"
   },
   "dependencies": {
     "@0xpolygonhermez/zkevm-contracts": "github.com:0xPolygonHermez/zkevm-contracts",
diff --git a/eth/todoscript.sh b/eth/todoscript.sh
deleted file mode 100644
index 1adfa8e..0000000
--- a/eth/todoscript.sh
+++ /dev/null
@@ -1,2 +0,0 @@
-NEWCONTRACT=forge script Deploy --fork-url local --broadcast --legacy --json | jq -R 'fromjson?' | jq -r '.returns.da.value'
-docker exec zkevm-sequence-sender /app/zkevm-node set-dap --da-addr $NEWCONTRACT --network custom --custom-network-file /app/genesis.json --key-store-path /pk/sequencer.keystore --pw testonly --cfg /app/config.toml