diff --git a/.github/actions/buildpack-pr-check/action.yml b/.github/actions/buildpack-pr-check/action.yml
new file mode 100644
index 000000000000..62b58807201a
--- /dev/null
+++ b/.github/actions/buildpack-pr-check/action.yml
@@ -0,0 +1,13 @@
+name: "Checks whether a PR is buildpack related"
+description: "Checks whether a PR is buildpack related"
+inputs:
+  token:
+    description: "GitHub access token"
+    required: true
+    default: ""
+  label:
+    description: "Label to check for"
+    required: true
+runs:
+  using: "node12"
+  main: "dist/index.js"
diff --git a/.github/actions/buildpack-pr-check/package-lock.json b/.github/actions/buildpack-pr-check/package-lock.json
new file mode 100644
index 000000000000..9f4978208850
--- /dev/null
+++ b/.github/actions/buildpack-pr-check/package-lock.json
@@ -0,0 +1,394 @@
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+      "requires": {
+        "os-name": "^3.1.0"
+      }
+    },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "windows-release": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/windows-release/-/windows-release-3.2.0.tgz",
+      "integrity": "sha512-QTlz2hKLrdqukrsapKsINzqMgOUpQW268eJ0OaOpJN32h272waxR9fkB9VoWRtK7uKHG5EHJcTXQBD8XZVJkFA==",
+      "requires": {
+        "execa": "^1.0.0"
+      }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+    }
+  }
+}
diff --git a/.github/actions/buildpack-pr-check/package.json b/.github/actions/buildpack-pr-check/package.json
new file mode 100644
index 000000000000..80448c50630f
--- /dev/null
+++ b/.github/actions/buildpack-pr-check/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "buildpack-pr-check",
+  "version": "1.0.0",
+  "description": "An action that checks whether a pr was buildpack related",
+  "private": true,
+  "main": "index.js",
+  "scripts": {
+    "build": "tsc"
+  },
+  "keywords": [],
+  "author": "Alexander Arlt",
+  "license": "MIT",
+  "dependencies": {
+    "@actions/core": "^1.2.4",
+    "@actions/github": "^2.1.1"
+  },
+  "devDependencies": {
+    "typescript": "^3.8.3"
+  }
+}
diff --git a/.github/actions/buildpack-pr-check/src/index.ts b/.github/actions/buildpack-pr-check/src/index.ts
new file mode 100644
index 000000000000..c745d899bb57
--- /dev/null
+++ b/.github/actions/buildpack-pr-check/src/index.ts
@@ -0,0 +1,59 @@
+import * as core from "@actions/core";
+import * as github from "@actions/github";
+
+async function run() {
+  const token = core.getInput("token");
+
+  const octokit = new github.GitHub(token);
+  const context = github.context;
+
+  const comments = await octokit.issues.listComments({
+    ...context.repo,
+    issue_number: context.payload.pull_request!.number
+  });
+
+  const pull_request = await octokit.pulls.get({
+    ...context.repo,
+    pull_number: context.payload.pull_request!.number
+  });
+
+  const actionComment = comments.data.find(
+      comment => comment.body.indexOf("Package: ") >= 0 &&
+          comment.body.indexOf("Version: ") >= 0 &&
+          comment.body.indexOf("Action: ") >= 0 &&
+          comment.body.indexOf("Artifact: ") >= 0 &&
+          comment.body.indexOf("Commit: ") >= 0
+  );
+
+  if (actionComment) {
+    let pack = actionComment!.body.substr(actionComment!.body.indexOf("Package: ") + 9)
+    pack = pack.substr(0, pack.indexOf("\n"));
+    let version = actionComment!.body.substr(actionComment!.body.indexOf("Version: ") + 9)
+    version = version.substr(0, version.indexOf("\n"));
+    let action = actionComment!.body.substr(actionComment!.body.indexOf("Action: ") + 8)
+    action = action.substr(0, action.indexOf("\n"));
+    let artifact = actionComment!.body.substr(actionComment!.body.indexOf("Artifact: ") + 10)
+    artifact = artifact.substr(0, artifact.indexOf("\n"));
+    let commit = actionComment!.body.substr(actionComment!.body.indexOf("Commit: ") + 8)
+
+    core.setOutput(
+        "publish",
+        pull_request.data.labels
+            .some(label => label.name === core.getInput("label"))
+            .toString()
+    );
+    core.setOutput("package", pack.trim());
+    core.setOutput("version", version.trim());
+    core.setOutput("action", action.trim());
+    core.setOutput("artifact", artifact.trim());
+    core.setOutput("commit", commit.trim());
+
+    console.log("package", pack.trim());
+    console.log("version", version.trim());
+    console.log("action", action.trim());
+    console.log("artifact", artifact.trim());
+    console.log("commit", commit.trim());
+  }
+}
+
+run();
diff --git a/.github/actions/buildpack-pr-check/tsconfig.json b/.github/actions/buildpack-pr-check/tsconfig.json
new file mode 100644
index 000000000000..67d94bc92287
--- /dev/null
+++ b/.github/actions/buildpack-pr-check/tsconfig.json
@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "commonjs",
+    "strict": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "outDir": "dist"
+  }
+}
diff --git a/.github/actions/buildpack-pr-comment/action.yml b/.github/actions/buildpack-pr-comment/action.yml
new file mode 100644
index 000000000000..695bdcf41be0
--- /dev/null
+++ b/.github/actions/buildpack-pr-comment/action.yml
@@ -0,0 +1,26 @@
+name: "Add comment to current PR"
+description: "Adds a comment to current PR"
+inputs:
+  token:
+    description: "GitHub access token"
+    required: true
+    default: ""
+  action-id:
+    description: "GitHub Action ID"
+    required: true
+    default: ""
+  package-name:
+    description: "Name of the package being released"
+    required: true
+    default: "Something like buildpack-ubuntu2004"
+  package-version:
+    description: "Version of the package being released"
+    required: true
+    default: "Something like 1.0.0"
+  artifact:
+    description: "Name of the artifact"
+    required: true
+    default: "Something like buildpack-ubuntu2004-d12f0d12c9f69baa7b825033b2f9c89acea738bf1ae734efa4b343833f897e1d"
+runs:
+  using: "node12"
+  main: "dist/index.js"
diff --git a/.github/actions/buildpack-pr-comment/package-lock.json b/.github/actions/buildpack-pr-comment/package-lock.json
new file mode 100644
index 000000000000..c086e4c752e3
--- /dev/null
+++ b/.github/actions/buildpack-pr-comment/package-lock.json
@@ -0,0 +1,394 @@
+{
+  "name": "buildpack-pr-comment",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@actions/core": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/@actions/core/-/core-1.2.4.tgz",
+      "integrity": "sha512-YJCEq8BE3CdN8+7HPZ/4DxJjk/OkZV2FFIf+DlZTC/4iBlzYCD5yjRR6eiOS5llO11zbRltIRuKAjMKaWTE6cg=="
+    },
+    "@actions/github": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/@actions/github/-/github-2.1.1.tgz",
+      "integrity": "sha512-kAgTGUx7yf5KQCndVeHSwCNZuDBvPyxm5xKTswW2lofugeuC1AZX73nUUVDNaysnM9aKFMHv9YCdVJbg7syEyA==",
+      "requires": {
+        "@actions/http-client": "^1.0.3",
+        "@octokit/graphql": "^4.3.1",
+        "@octokit/rest": "^16.43.1"
+      }
+    },
+    "@actions/http-client": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/@actions/http-client/-/http-client-1.0.8.tgz",
+      "integrity": "sha512-G4JjJ6f9Hb3Zvejj+ewLLKLf99ZC+9v+yCxoYf9vSyH+WkzPLB2LuUtRMGNkooMqdugGBFStIKXOuvH1W+EctA==",
+      "requires": {
+        "tunnel": "0.0.6"
+      }
+    },
+    "@octokit/auth-token": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-2.4.0.tgz",
+      "integrity": "sha512-eoOVMjILna7FVQf96iWc3+ZtE/ZT6y8ob8ZzcqKY1ibSQCnu4O/B7pJvzMx5cyZ/RjAff6DAdEb0O0Cjcxidkg==",
+      "requires": {
+        "@octokit/types": "^2.0.0"
+      }
+    },
+    "@octokit/endpoint": {
+      "version": "5.5.3",
+      "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-5.5.3.tgz",
+      "integrity": "sha512-EzKwkwcxeegYYah5ukEeAI/gYRLv2Y9U5PpIsseGSFDk+G3RbipQGBs8GuYS1TLCtQaqoO66+aQGtITPalxsNQ==",
+      "requires": {
+        "@octokit/types": "^2.0.0",
+        "is-plain-object": "^3.0.0",
+        "universal-user-agent": "^5.0.0"
+      },
+      "dependencies": {
+        "universal-user-agent": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-5.0.0.tgz",
+          "integrity": "sha512-B5TPtzZleXyPrUMKCpEHFmVhMN6EhmJYjG5PQna9s7mXeSqGTLap4OpqLl5FCEFUI3UBmllkETwKf/db66Y54Q==",
+          "requires": {
+            "os-name": "^3.1.0"
+          }
+        }
+      }
+    },
+    "@octokit/graphql": {
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-4.3.1.tgz",
+      "integrity": "sha512-hCdTjfvrK+ilU2keAdqNBWOk+gm1kai1ZcdjRfB30oA3/T6n53UVJb7w0L5cR3/rhU91xT3HSqCd+qbvH06yxA==",
+      "requires": {
+        "@octokit/request": "^5.3.0",
+        "@octokit/types": "^2.0.0",
+        "universal-user-agent": "^4.0.0"
+      }
+    },
+    "@octokit/plugin-paginate-rest": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-1.1.2.tgz",
+      "integrity": "sha512-jbsSoi5Q1pj63sC16XIUboklNw+8tL9VOnJsWycWYR78TKss5PVpIPb1TUUcMQ+bBh7cY579cVAWmf5qG+dw+Q==",
+      "requires": {
+        "@octokit/types": "^2.0.1"
+      }
+    },
+    "@octokit/plugin-request-log": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-request-log/-/plugin-request-log-1.0.0.tgz",
+      "integrity": "sha512-ywoxP68aOT3zHCLgWZgwUJatiENeHE7xJzYjfz8WI0goynp96wETBF+d95b8g/uL4QmS6owPVlaxiz3wyMAzcw=="
+    },
+    "@octokit/plugin-rest-endpoint-methods": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-2.4.0.tgz",
+      "integrity": "sha512-EZi/AWhtkdfAYi01obpX0DF7U6b1VRr30QNQ5xSFPITMdLSfhcBqjamE3F+sKcxPbD7eZuMHu3Qkk2V+JGxBDQ==",
+      "requires": {
+        "@octokit/types": "^2.0.1",
+        "deprecation": "^2.3.1"
+      }
+    },
+    "@octokit/request": {
+      "version": "5.3.2",
+      "resolved": "https://registry.npmjs.org/@octokit/request/-/request-5.3.2.tgz",
+      "integrity": "sha512-7NPJpg19wVQy1cs2xqXjjRq/RmtSomja/VSWnptfYwuBxLdbYh2UjhGi0Wx7B1v5Iw5GKhfFDQL7jM7SSp7K2g==",
+      "requires": {
+        "@octokit/endpoint": "^5.5.0",
+        "@octokit/request-error": "^1.0.1",
+        "@octokit/types": "^2.0.0",
+        "deprecation": "^2.0.0",
+        "is-plain-object": "^3.0.0",
+        "node-fetch": "^2.3.0",
+        "once": "^1.4.0",
+        "universal-user-agent": "^5.0.0"
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+      "dependencies": {
+        "universal-user-agent": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-5.0.0.tgz",
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+          "requires": {
+            "os-name": "^3.1.0"
+          }
+        }
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+    },
+    "@octokit/request-error": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-1.2.1.tgz",
+      "integrity": "sha512-+6yDyk1EES6WK+l3viRDElw96MvwfJxCt45GvmjDUKWjYIb3PJZQkq3i46TwGwoPD4h8NmTrENmtyA1FwbmhRA==",
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+        "deprecation": "^2.0.0",
+        "once": "^1.4.0"
+      }
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+    "@octokit/rest": {
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+      "resolved": "https://registry.npmjs.org/@octokit/rest/-/rest-16.43.1.tgz",
+      "integrity": "sha512-gfFKwRT/wFxq5qlNjnW2dh+qh74XgTQ2B179UX5K1HYCluioWj8Ndbgqw2PVqa1NnVJkGHp2ovMpVn/DImlmkw==",
+      "requires": {
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+        "@octokit/plugin-paginate-rest": "^1.1.1",
+        "@octokit/plugin-request-log": "^1.0.0",
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+        "atob-lite": "^2.0.0",
+        "before-after-hook": "^2.0.0",
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+    },
+    "node-fetch": {
+      "version": "2.6.0",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
+      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
+    },
+    "npm-run-path": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
+      "integrity": "sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=",
+      "requires": {
+        "path-key": "^2.0.0"
+      }
+    },
+    "octokit-pagination-methods": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/octokit-pagination-methods/-/octokit-pagination-methods-1.1.0.tgz",
+      "integrity": "sha512-fZ4qZdQ2nxJvtcasX7Ghl+WlWS/d9IgnBIwFZXVNNZUmzpno91SX5bc5vuxiuKoCtK78XxGGNuSCrDC7xYB3OQ=="
+    },
+    "once": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+      "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+      "requires": {
+        "wrappy": "1"
+      }
+    },
+    "os-name": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/os-name/-/os-name-3.1.0.tgz",
+      "integrity": "sha512-h8L+8aNjNcMpo/mAIBPn5PXCM16iyPGjHNWo6U1YO8sJTMHtEtyczI6QJnLoplswm6goopQkqc7OAnjhWcugVg==",
+      "requires": {
+        "macos-release": "^2.2.0",
+        "windows-release": "^3.1.0"
+      }
+    },
+    "p-finally": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
+      "integrity": "sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4="
+    },
+    "path-key": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/path-key/-/path-key-2.0.1.tgz",
+      "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A="
+    },
+    "pump": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
+      "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
+      "requires": {
+        "end-of-stream": "^1.1.0",
+        "once": "^1.3.1"
+      }
+    },
+    "semver": {
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+      "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
+    },
+    "shebang-command": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
+      "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
+      "requires": {
+        "shebang-regex": "^1.0.0"
+      }
+    },
+    "shebang-regex": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+      "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM="
+    },
+    "signal-exit": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
+      "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0="
+    },
+    "strip-eof": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
+      "integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8="
+    },
+    "tunnel": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/tunnel/-/tunnel-0.0.6.tgz",
+      "integrity": "sha512-1h/Lnq9yajKY2PEbBadPXj3VxsDDu844OnaAo52UVmIzIvwwtBPIuNvkjuzBlTWpfJyUbG3ez0KSBibQkj4ojg=="
+    },
+    "typescript": {
+      "version": "3.8.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
+      "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==",
+      "dev": true
+    },
+    "universal-user-agent": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-4.0.1.tgz",
+      "integrity": "sha512-LnST3ebHwVL2aNe4mejI9IQh2HfZ1RLo8Io2HugSif8ekzD1TlWpHpColOB/eh8JHMLkGH3Akqf040I+4ylNxg==",
+      "requires": {
+        "os-name": "^3.1.0"
+      }
+    },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "windows-release": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/windows-release/-/windows-release-3.2.0.tgz",
+      "integrity": "sha512-QTlz2hKLrdqukrsapKsINzqMgOUpQW268eJ0OaOpJN32h272waxR9fkB9VoWRtK7uKHG5EHJcTXQBD8XZVJkFA==",
+      "requires": {
+        "execa": "^1.0.0"
+      }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+    }
+  }
+}
diff --git a/.github/actions/buildpack-pr-comment/package.json b/.github/actions/buildpack-pr-comment/package.json
new file mode 100644
index 000000000000..2fe39af632f1
--- /dev/null
+++ b/.github/actions/buildpack-pr-comment/package.json
@@ -0,0 +1,20 @@
+{
+  "name": "buildpack-pr-comment",
+  "version": "1.0.0",
+  "description": "An action for creating a comment on current PR to save artifact information",
+  "private": true,
+  "main": "index.js",
+  "scripts": {
+    "build": "tsc"
+  },
+  "keywords": [],
+  "author": "Alexander Arlt",
+  "license": "MIT",
+  "dependencies": {
+    "@actions/core": "^1.2.4",
+    "@actions/github": "^2.1.1"
+  },
+  "devDependencies": {
+    "typescript": "^3.8.3"
+  }
+}
diff --git a/.github/actions/buildpack-pr-comment/src/index.ts b/.github/actions/buildpack-pr-comment/src/index.ts
new file mode 100644
index 000000000000..79cce11539e6
--- /dev/null
+++ b/.github/actions/buildpack-pr-comment/src/index.ts
@@ -0,0 +1,21 @@
+import * as core from "@actions/core";
+import * as github from "@actions/github";
+
+async function run() {
+  const token = core.getInput("token");
+
+  const octokit = new github.GitHub(token);
+  const context = github.context;
+
+  await octokit.issues.createComment({
+    ...context.repo,
+    issue_number: context.payload.pull_request!.number,
+    body: `Package: ${core.getInput("package-name")}\n` +
+        `Version: ${core.getInput("package-version")}\n` +
+        `Action: ${core.getInput("action-id")}\n` +
+        `Artifact: ${core.getInput("artifact")}\n` +
+        `Commit: ${context.sha}`
+  });
+}
+
+run();
diff --git a/.github/actions/buildpack-pr-comment/tsconfig.json b/.github/actions/buildpack-pr-comment/tsconfig.json
new file mode 100644
index 000000000000..67d94bc92287
--- /dev/null
+++ b/.github/actions/buildpack-pr-comment/tsconfig.json
@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "commonjs",
+    "strict": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "outDir": "dist"
+  }
+}
diff --git a/.github/workflows/buildpack-emscripten.yml b/.github/workflows/buildpack-emscripten.yml
new file mode 100644
index 000000000000..43873b14c7af
--- /dev/null
+++ b/.github/workflows/buildpack-emscripten.yml
@@ -0,0 +1,78 @@
+name: buildpack:emscripten
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/buildpack-emscripten.yml'
+      - 'scripts/docker/buildpack/Dockerfile.emscripten'
+
+jobs:
+  build:
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GITHUB_DOCKER_REPOSITORY: docker.pkg.github.com/${{ github.repository }}
+      IMAGE_NAME: buildpack
+      IMAGE_VARIANT: emscripten
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check version
+        run: |
+          VERSION=$(grep "LABEL version" scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT | awk -F'"' '$0=$2')
+          echo "::set-env name=VERSION::$VERSION"
+
+          echo ${GITHUB_TOKEN} | docker login docker.pkg.github.com -u ${GITHUB_ACTOR} --password-stdin
+          VERSION_EXIST=$(docker pull -q $GITHUB_DOCKER_REPOSITORY/$IMAGE_NAME-$IMAGE_VARIANT:${VERSION} || echo false && true)
+          docker logout docker.pkg.github.com
+
+          if [ "${VERSION_EXIST}" != "false" ]
+          then
+            echo ""
+            echo "ERROR: version '${VERSION}' already exist for '$IMAGE_NAME-$IMAGE_VARIANT'. Aborting."
+            echo ""
+
+            false
+          fi
+
+      - name: Build image
+        run: |
+          docker build scripts/docker/${IMAGE_NAME} --file scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT --tag $IMAGE_NAME
+
+      - name: Test image
+        run: |
+          scripts/build_emscripten.sh emscripten_build $IMAGE_NAME
+
+      - name: Save image
+        run: |
+          docker save -o $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME
+          HASH=$(sha256sum $IMAGE_NAME-$IMAGE_VARIANT.tar | awk '{print $1}')
+          mv $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME-$IMAGE_VARIANT-$HASH
+          echo "::set-env name=HASH::$HASH"
+          echo "::set-env name=ARCHIVE::$IMAGE_NAME-$IMAGE_VARIANT-$HASH"
+
+      - name: Upload image
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.ARCHIVE }}
+          path: ${{ env.ARCHIVE }}
+
+      - name: Prepare action
+        uses: actions/setup-node@v1
+        with:
+          node-version: "12.x"
+
+      - name: Build action
+        run: npm i && npm run build
+        working-directory: ./.github/actions/buildpack-pr-comment
+
+      - name: Create buildpack comment on PR
+        uses: ./.github/actions/buildpack-pr-comment
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          action-id: ${{ github.run_id }}
+          artifact: ${{ env.ARCHIVE }}
+          package-name: ${{ env.IMAGE_NAME }}-${{ env.IMAGE_VARIANT }}
+          package-version: ${{ env.VERSION }}
diff --git a/.github/workflows/buildpack-push.yml b/.github/workflows/buildpack-push.yml
new file mode 100644
index 000000000000..acf14dec6f70
--- /dev/null
+++ b/.github/workflows/buildpack-push.yml
@@ -0,0 +1,82 @@
+name: buildpack:push
+
+on:
+  pull_request:
+    types: [labeled]
+    paths:
+      - '.github/workflows/buildpack-emscripten.yml'
+      - 'scripts/docker/buildpack/Dockerfile.emscripten'
+      - '.github/workflows/buildpack-ubuntu1604.clang.ossfuzz.yml'
+      - 'scripts/docker/buildpack/Dockerfile.ubuntu1604.clang.ossfuzz'
+      - '.github/workflows/buildpack-ubuntu1804.yml'
+      - 'scripts/docker/buildpack/Dockerfile.ubuntu1804'
+      - '.github/workflows/buildpack-ubuntu2004.clang.yml'
+      - 'scripts/docker/buildpack/Dockerfile.ubuntu2004.clang'
+      - '.github/workflows/buildpack-ubuntu2004.yml'
+      - 'scripts/docker/buildpack/Dockerfile.ubuntu2004'
+
+jobs:
+  build:
+    env:
+      OUTPUT_PATH: ${{ github.workspace }}/.output
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GITHUB_DOCKER_REPOSITORY: docker.pkg.github.com/${{ github.repository }}
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Prepare action
+        uses: actions/setup-node@v1
+        with:
+          node-version: "12.x"
+
+      - name: Build action
+        run: npm i && npm run build
+        working-directory: ./.github/actions/buildpack-pr-check
+
+      - name: Check for buildpack PR
+        uses: ./.github/actions/buildpack-pr-check
+        id: buildpack-pr-check
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          label: "buildpack-release"
+
+      - name: Download image artifact
+        if: steps.buildpack-pr-check.outputs.publish == 'true'
+        run: |
+          echo ${{ steps.get-action-id.outputs.id }}
+          mkdir ${{ env.OUTPUT_PATH }}
+          cd ${{ env.OUTPUT_PATH }}
+          curl https://api.github.com/repos/aarlt/solidity/actions/runs/${{ steps.buildpack-pr-check.outputs.action }}/artifacts --output artifacts.json
+          downloadUrl=$(cat artifacts.json | jq -c '.artifacts[] | select(.name == "${{ steps.buildpack-pr-check.outputs.artifact }}") | .archive_download_url' | tr -d '"')
+          echo $downloadUrl
+          curl $downloadUrl --output packages.zip --user octocat:${{ secrets.GITHUB_TOKEN }} --verbose --location
+          unzip packages.zip
+          ls
+
+      - name: Load image
+        if: steps.buildpack-pr-check.outputs.publish == 'true'
+        run: |
+          docker load -i ${{ env.OUTPUT_PATH }}/${{ steps.buildpack-pr-check.outputs.artifact }}
+          docker images
+          HASH=$(sha256sum ${{ env.OUTPUT_PATH }}/${{ steps.buildpack-pr-check.outputs.artifact }} | awk '{print $1}')
+          echo "::set-env name=HASH::$HASH"
+          echo "HASH=$HASH"
+
+      - name: Push image
+        if: steps.buildpack-pr-check.outputs.publish == 'true'
+        run: |
+          echo ${GITHUB_TOKEN} | docker login docker.pkg.github.com -u ${GITHUB_ACTOR} --password-stdin
+
+          VERSION=$(docker inspect --format={{.Config.Labels.version}} buildpack:latest)
+          docker tag  buildpack:latest $GITHUB_DOCKER_REPOSITORY/${{ steps.buildpack-pr-check.outputs.package }}:${{ steps.buildpack-pr-check.outputs.version }}
+          docker push $GITHUB_DOCKER_REPOSITORY/${{ steps.buildpack-pr-check.outputs.package }}:${{ steps.buildpack-pr-check.outputs.version }}
+
+          docker tag  buildpack:latest $GITHUB_DOCKER_REPOSITORY/${{ steps.buildpack-pr-check.outputs.package }}:latest
+          docker push $GITHUB_DOCKER_REPOSITORY/${{ steps.buildpack-pr-check.outputs.package }}:latest
+
+          docker logout docker.pkg.github.com
+
+
diff --git a/.github/workflows/buildpack-ubuntu1604.clang.ossfuzz.yml b/.github/workflows/buildpack-ubuntu1604.clang.ossfuzz.yml
new file mode 100644
index 000000000000..2c4260dbec00
--- /dev/null
+++ b/.github/workflows/buildpack-ubuntu1604.clang.ossfuzz.yml
@@ -0,0 +1,80 @@
+name: buildpack:ubuntu1604.clang.ossfuzz
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/buildpack-ubuntu1604.clang.ossfuzz.yml'
+      - 'scripts/docker/buildpack/Dockerfile.ubuntu1604.clang.ossfuzz'
+
+jobs:
+  build:
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GITHUB_DOCKER_REPOSITORY: docker.pkg.github.com/${{ github.repository }}
+      IMAGE_NAME: buildpack
+      IMAGE_VARIANT: ubuntu1604.clang.ossfuzz
+      CC: clang
+      CXX: clang++
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check version
+        run: |
+          VERSION=$(grep "LABEL version" scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT | awk -F'"' '$0=$2')
+          echo "::set-env name=VERSION::$VERSION"
+
+          echo ${GITHUB_TOKEN} | docker login docker.pkg.github.com -u ${GITHUB_ACTOR} --password-stdin
+          VERSION_EXIST=$(docker pull -q $GITHUB_DOCKER_REPOSITORY/$IMAGE_NAME-$IMAGE_VARIANT:${VERSION} || echo false && true)
+          docker logout docker.pkg.github.com
+
+          if [ "${VERSION_EXIST}" != "false" ]
+          then
+            echo ""
+            echo "ERROR: version '${VERSION}' already exist for '$IMAGE_NAME-$IMAGE_VARIANT'. Aborting."
+            echo ""
+
+            false
+          fi
+
+      - name: Build image
+        run: |
+          docker build scripts/docker/${IMAGE_NAME} --file scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT --tag $IMAGE_NAME
+
+      - name: Test image
+        run: |
+          docker run -v ${PWD}:/tmp -e CI=1 -e CC=$CC -e CXX=$CXX $IMAGE_NAME /tmp/scripts/docker/${IMAGE_NAME}/test/test-$IMAGE_VARIANT.sh
+
+      - name: Save image
+        run: |
+          docker save -o $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME
+          HASH=$(sha256sum $IMAGE_NAME-$IMAGE_VARIANT.tar | awk '{print $1}')
+          mv $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME-$IMAGE_VARIANT-$HASH
+          echo "::set-env name=HASH::$HASH"
+          echo "::set-env name=ARCHIVE::$IMAGE_NAME-$IMAGE_VARIANT-$HASH"
+
+      - name: Upload image
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.ARCHIVE }}
+          path: ${{ env.ARCHIVE }}
+
+      - name: Prepare action
+        uses: actions/setup-node@v1
+        with:
+          node-version: "12.x"
+
+      - name: Build action
+        run: npm i && npm run build
+        working-directory: ./.github/actions/buildpack-pr-comment
+
+      - name: Create buildpack comment on PR
+        uses: ./.github/actions/buildpack-pr-comment
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          action-id: ${{ github.run_id }}
+          artifact: ${{ env.ARCHIVE }}
+          package-name: ${{ env.IMAGE_NAME }}-${{ env.IMAGE_VARIANT }}
+          package-version: ${{ env.VERSION }}
diff --git a/.github/workflows/buildpack-ubuntu1804.yml b/.github/workflows/buildpack-ubuntu1804.yml
new file mode 100644
index 000000000000..e8b9d6e742c6
--- /dev/null
+++ b/.github/workflows/buildpack-ubuntu1804.yml
@@ -0,0 +1,78 @@
+name: buildpack:ubuntu1804
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/buildpack-ubuntu1804.yml'
+      - 'scripts/docker/buildpack/Dockerfile.ubuntu1804'
+
+jobs:
+  build:
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GITHUB_DOCKER_REPOSITORY: docker.pkg.github.com/${{ github.repository }}
+      IMAGE_NAME: buildpack
+      IMAGE_VARIANT: ubuntu1804
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check version
+        run: |
+          VERSION=$(grep "LABEL version" scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT | awk -F'"' '$0=$2')
+          echo "::set-env name=VERSION::$VERSION"
+
+          echo ${GITHUB_TOKEN} | docker login docker.pkg.github.com -u ${GITHUB_ACTOR} --password-stdin
+          VERSION_EXIST=$(docker pull -q $GITHUB_DOCKER_REPOSITORY/$IMAGE_NAME-$IMAGE_VARIANT:${VERSION} || echo false && true)
+          docker logout docker.pkg.github.com
+
+          if [ "${VERSION_EXIST}" != "false" ]
+          then
+            echo ""
+            echo "ERROR: version '${VERSION}' already exist for '$IMAGE_NAME-$IMAGE_VARIANT'. Aborting."
+            echo ""
+
+            false
+          fi
+
+      - name: Build image
+        run: |
+          docker build scripts/docker/${IMAGE_NAME} --file scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT --tag $IMAGE_NAME
+
+      - name: Test image
+        run: |
+          docker run -v ${PWD}:/tmp -e CI=1 $IMAGE_NAME /tmp/scripts/build.sh
+
+      - name: Save image
+        run: |
+          docker save -o $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME
+          HASH=$(sha256sum $IMAGE_NAME-$IMAGE_VARIANT.tar | awk '{print $1}')
+          mv $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME-$IMAGE_VARIANT-$HASH
+          echo "::set-env name=HASH::$HASH"
+          echo "::set-env name=ARCHIVE::$IMAGE_NAME-$IMAGE_VARIANT-$HASH"
+
+      - name: Upload image
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.ARCHIVE }}
+          path: ${{ env.ARCHIVE }}
+
+      - name: Prepare action
+        uses: actions/setup-node@v1
+        with:
+          node-version: "12.x"
+
+      - name: Build action
+        run: npm i && npm run build
+        working-directory: ./.github/actions/buildpack-pr-comment
+
+      - name: Create buildpack comment on PR
+        uses: ./.github/actions/buildpack-pr-comment
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          action-id: ${{ github.run_id }}
+          artifact: ${{ env.ARCHIVE }}
+          package-name: ${{ env.IMAGE_NAME }}-${{ env.IMAGE_VARIANT }}
+          package-version: ${{ env.VERSION }}
diff --git a/.github/workflows/buildpack-ubuntu2004.clang.yml b/.github/workflows/buildpack-ubuntu2004.clang.yml
new file mode 100644
index 000000000000..ec402721515e
--- /dev/null
+++ b/.github/workflows/buildpack-ubuntu2004.clang.yml
@@ -0,0 +1,80 @@
+name: buildpack:ubuntu2004.clang
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/buildpack-ubuntu2004.clang.yml'
+      - 'scripts/docker/buildpack/Dockerfile.ubuntu2004.clang'
+
+jobs:
+  build:
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GITHUB_DOCKER_REPOSITORY: docker.pkg.github.com/${{ github.repository }}
+      IMAGE_NAME: buildpack
+      IMAGE_VARIANT: ubuntu2004.clang
+      CC: clang
+      CXX: clang++
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check version
+        run: |
+          VERSION=$(grep "LABEL version" scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT | awk -F'"' '$0=$2')
+          echo "::set-env name=VERSION::$VERSION"
+
+          echo ${GITHUB_TOKEN} | docker login docker.pkg.github.com -u ${GITHUB_ACTOR} --password-stdin
+          VERSION_EXIST=$(docker pull -q $GITHUB_DOCKER_REPOSITORY/$IMAGE_NAME-$IMAGE_VARIANT:${VERSION} || echo false && true)
+          docker logout docker.pkg.github.com
+
+          if [ "${VERSION_EXIST}" != "false" ]
+          then
+            echo ""
+            echo "ERROR: version '${VERSION}' already exist for '$IMAGE_NAME-$IMAGE_VARIANT'. Aborting."
+            echo ""
+
+            false
+          fi
+
+      - name: Build image
+        run: |
+          docker build scripts/docker/${IMAGE_NAME} --file scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT --tag $IMAGE_NAME
+
+      - name: Test image
+        run: |
+          docker run -v ${PWD}:/tmp -e CI=1 -e CC=$CC -e CXX=$CXX $IMAGE_NAME /tmp/scripts/build.sh
+
+      - name: Save image
+        run: |
+          docker save -o $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME
+          HASH=$(sha256sum $IMAGE_NAME-$IMAGE_VARIANT.tar | awk '{print $1}')
+          mv $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME-$IMAGE_VARIANT-$HASH
+          echo "::set-env name=HASH::$HASH"
+          echo "::set-env name=ARCHIVE::$IMAGE_NAME-$IMAGE_VARIANT-$HASH"
+
+      - name: Upload image
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.ARCHIVE }}
+          path: ${{ env.ARCHIVE }}
+
+      - name: Prepare action
+        uses: actions/setup-node@v1
+        with:
+          node-version: "12.x"
+
+      - name: Build action
+        run: npm i && npm run build
+        working-directory: ./.github/actions/buildpack-pr-comment
+
+      - name: Create buildpack comment on PR
+        uses: ./.github/actions/buildpack-pr-comment
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          action-id: ${{ github.run_id }}
+          artifact: ${{ env.ARCHIVE }}
+          package-name: ${{ env.IMAGE_NAME }}-${{ env.IMAGE_VARIANT }}
+          package-version: ${{ env.VERSION }}
diff --git a/.github/workflows/buildpack-ubuntu2004.yml b/.github/workflows/buildpack-ubuntu2004.yml
new file mode 100644
index 000000000000..4905fc923b56
--- /dev/null
+++ b/.github/workflows/buildpack-ubuntu2004.yml
@@ -0,0 +1,77 @@
+name: buildpack:ubuntu2004
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/buildpack-ubuntu2004.yml'
+      - 'scripts/docker/buildpack/Dockerfile.ubuntu2004'
+jobs:
+  build:
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GITHUB_DOCKER_REPOSITORY: docker.pkg.github.com/${{ github.repository }}
+      IMAGE_NAME: buildpack
+      IMAGE_VARIANT: ubuntu2004
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Check version
+        run: |
+          VERSION=$(grep "LABEL version" scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT | awk -F'"' '$0=$2')
+          echo "::set-env name=VERSION::$VERSION"
+
+          echo ${GITHUB_TOKEN} | docker login docker.pkg.github.com -u ${GITHUB_ACTOR} --password-stdin
+          VERSION_EXIST=$(docker pull -q $GITHUB_DOCKER_REPOSITORY/$IMAGE_NAME-$IMAGE_VARIANT:${VERSION} || echo false && true)
+          docker logout docker.pkg.github.com
+
+          if [ "${VERSION_EXIST}" != "false" ]
+          then
+            echo ""
+            echo "ERROR: version '${VERSION}' already exist for '$IMAGE_NAME-$IMAGE_VARIANT'. Aborting."
+            echo ""
+
+            false
+          fi
+
+      - name: Build image
+        run: |
+          docker build scripts/docker/${IMAGE_NAME} --file scripts/docker/${IMAGE_NAME}/Dockerfile.$IMAGE_VARIANT --tag $IMAGE_NAME
+
+      - name: Test image
+        run: |
+          docker run -v ${PWD}:/tmp -e CI=1 $IMAGE_NAME /tmp/scripts/build.sh
+
+      - name: Save image
+        run: |
+          docker save -o $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME
+          HASH=$(sha256sum $IMAGE_NAME-$IMAGE_VARIANT.tar | awk '{print $1}')
+          mv $IMAGE_NAME-$IMAGE_VARIANT.tar $IMAGE_NAME-$IMAGE_VARIANT-$HASH
+          echo "::set-env name=HASH::$HASH"
+          echo "::set-env name=ARCHIVE::$IMAGE_NAME-$IMAGE_VARIANT-$HASH"
+
+      - name: Upload image
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.ARCHIVE }}
+          path: ${{ env.ARCHIVE }}
+
+      - name: Prepare action
+        uses: actions/setup-node@v1
+        with:
+          node-version: "12.x"
+
+      - name: Build action
+        run: npm i && npm run build
+        working-directory: ./.github/actions/buildpack-pr-comment
+
+      - name: Create buildpack comment on PR
+        uses: ./.github/actions/buildpack-pr-comment
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          action-id: ${{ github.run_id }}
+          artifact: ${{ env.ARCHIVE }}
+          package-name: ${{ env.IMAGE_NAME }}-${{ env.IMAGE_VARIANT }}
+          package-version: ${{ env.VERSION }}
diff --git a/.gitignore b/.gitignore
index f6eeba75fffa..74d3af75a561 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,7 +32,7 @@ prerelease.txt
 
 # Build directory
 build/
-build*/
+/build*/
 emscripten_build/
 docs/_build
 docs/utils/__pycache__
diff --git a/cmake/jsoncpp.cmake b/cmake/jsoncpp.cmake
index 1377041b9a69..8525d88b7898 100644
--- a/cmake/jsoncpp.cmake
+++ b/cmake/jsoncpp.cmake
@@ -26,7 +26,8 @@ else()
     # JSON_USE_INT64_DOUBLE_CONVERSION preprocessor macro. Doing so,
     # not only gets rid of the implicit conversion error that clang-10 produces
     # but also forces safer behavior in general.
-    set(JSONCPP_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DJSON_USE_INT64_DOUBLE_CONVERSION")
+    find_package(Threads REQUIRED)
+    set(JSONCPP_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DJSON_USE_INT64_DOUBLE_CONVERSION ${CMAKE_THREAD_LIBS_INIT}")
 endif()
 
 set(byproducts "")
diff --git a/scripts/build_emscripten.sh b/scripts/build_emscripten.sh
index 7a052aa77eb6..c5c78dfb40f0 100755
--- a/scripts/build_emscripten.sh
+++ b/scripts/build_emscripten.sh
@@ -34,5 +34,11 @@ else
     BUILD_DIR="$1"
 fi
 
-docker run -v $(pwd):/root/project -w /root/project ethereum/solidity-buildpack-deps:emsdk-1.39.15-2 \
+if test -z "$2"; then
+    DOCKER_IMAGE="ethereum/solidity-buildpack-deps:emsdk-1.39.15-2"
+else
+    DOCKER_IMAGE="$2"
+fi
+
+docker run -v $(pwd):/root/project -w /root/project ${DOCKER_IMAGE} \
     ./scripts/travis-emscripten/build_emscripten.sh $BUILD_DIR
diff --git a/.circleci/docker/Dockerfile.emscripten b/scripts/docker/buildpack/Dockerfile.emscripten
similarity index 99%
rename from .circleci/docker/Dockerfile.emscripten
rename to scripts/docker/buildpack/Dockerfile.emscripten
index d2456bb2ae0b..87d82fdc6263 100644
--- a/.circleci/docker/Dockerfile.emscripten
+++ b/scripts/docker/buildpack/Dockerfile.emscripten
@@ -29,6 +29,7 @@
 #   make version=1.39.15 build
 #
 FROM emscripten/emsdk:1.39.15 AS base
+LABEL version="5"
 
 ADD emscripten.jam /usr/src
 RUN set -ex; \
diff --git a/.circleci/docker/Dockerfile.ubuntu1604.clang.ossfuzz b/scripts/docker/buildpack/Dockerfile.ubuntu1604.clang.ossfuzz
similarity index 98%
rename from .circleci/docker/Dockerfile.ubuntu1604.clang.ossfuzz
rename to scripts/docker/buildpack/Dockerfile.ubuntu1604.clang.ossfuzz
index f7dfc7001bdf..6e0c68966c63 100644
--- a/.circleci/docker/Dockerfile.ubuntu1604.clang.ossfuzz
+++ b/scripts/docker/buildpack/Dockerfile.ubuntu1604.clang.ossfuzz
@@ -22,10 +22,12 @@
 # (c) 2016-2019 solidity contributors.
 #------------------------------------------------------------------------------
 FROM gcr.io/oss-fuzz-base/base-clang as base
+LABEL version="5"
 
 ARG DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update; \
+	apt-get upgrade -y; \
 	apt-get -qqy install --no-install-recommends \
 		build-essential \
 		software-properties-common \
@@ -99,3 +101,4 @@ FROM base
 COPY --from=libraries /usr/lib /usr/lib
 COPY --from=libraries /usr/bin /usr/bin
 COPY --from=libraries /usr/include /usr/include
+
diff --git a/.circleci/docker/Dockerfile.ubuntu1804 b/scripts/docker/buildpack/Dockerfile.ubuntu1804
similarity index 99%
rename from .circleci/docker/Dockerfile.ubuntu1804
rename to scripts/docker/buildpack/Dockerfile.ubuntu1804
index fa651900b873..93f80659566a 100644
--- a/.circleci/docker/Dockerfile.ubuntu1804
+++ b/scripts/docker/buildpack/Dockerfile.ubuntu1804
@@ -22,6 +22,7 @@
 # (c) 2016-2019 solidity contributors.
 #------------------------------------------------------------------------------
 FROM buildpack-deps:bionic AS base
+LABEL version="5"
 
 ARG DEBIAN_FRONTEND=noninteractive
 
diff --git a/.circleci/docker/Dockerfile.ubuntu2004 b/scripts/docker/buildpack/Dockerfile.ubuntu2004
similarity index 98%
rename from .circleci/docker/Dockerfile.ubuntu2004
rename to scripts/docker/buildpack/Dockerfile.ubuntu2004
index a021b6533486..3124dbe52671 100644
--- a/.circleci/docker/Dockerfile.ubuntu2004
+++ b/scripts/docker/buildpack/Dockerfile.ubuntu2004
@@ -22,6 +22,7 @@
 # (c) 2016-2019 solidity contributors.
 #------------------------------------------------------------------------------
 FROM buildpack-deps:focal AS base
+LABEL version="5"
 
 ARG DEBIAN_FRONTEND=noninteractive
 
@@ -58,5 +59,7 @@ RUN set -ex; \
 
 FROM base
 COPY --from=libraries /usr/lib /usr/lib
+RUN true
 COPY --from=libraries /usr/bin /usr/bin
+RUN true
 COPY --from=libraries /usr/include /usr/include
diff --git a/.circleci/docker/Dockerfile.ubuntu2004.clang b/scripts/docker/buildpack/Dockerfile.ubuntu2004.clang
similarity index 98%
rename from .circleci/docker/Dockerfile.ubuntu2004.clang
rename to scripts/docker/buildpack/Dockerfile.ubuntu2004.clang
index c8d057eb11a0..f43f2f4f78a6 100644
--- a/.circleci/docker/Dockerfile.ubuntu2004.clang
+++ b/scripts/docker/buildpack/Dockerfile.ubuntu2004.clang
@@ -22,6 +22,7 @@
 # (c) 2016-2019 solidity contributors.
 #------------------------------------------------------------------------------
 FROM buildpack-deps:focal AS base
+LABEL version="5"
 
 ARG DEBIAN_FRONTEND=noninteractive
 
@@ -60,5 +61,7 @@ RUN set -ex; \
 
 FROM base
 COPY --from=libraries /usr/lib /usr/lib
+RUN true
 COPY --from=libraries /usr/bin /usr/bin
+RUN true
 COPY --from=libraries /usr/include /usr/include
diff --git a/.circleci/docker/emscripten.jam b/scripts/docker/buildpack/emscripten.jam
similarity index 100%
rename from .circleci/docker/emscripten.jam
rename to scripts/docker/buildpack/emscripten.jam
diff --git a/scripts/docker/buildpack/test/test-ubuntu1604.clang.ossfuzz.sh b/scripts/docker/buildpack/test/test-ubuntu1604.clang.ossfuzz.sh
new file mode 100755
index 000000000000..c0b336ed65e7
--- /dev/null
+++ b/scripts/docker/buildpack/test/test-ubuntu1604.clang.ossfuzz.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+cd /tmp
+mkdir fuzzer-build && cd fuzzer-build
+
+## Compile protobuf C++ bindings
+protoc --proto_path=../test/tools/ossfuzz yulProto.proto --cpp_out=../test/tools/ossfuzz
+protoc --proto_path=../test/tools/ossfuzz abiV2Proto.proto --cpp_out=../test/tools/ossfuzz
+protoc --proto_path=../test/tools/ossfuzz solProto.proto --cpp_out=../test/tools/ossfuzz
+
+## Run cmake
+cmake -DCMAKE_TOOLCHAIN_FILE=cmake/toolchains/libfuzzer.cmake -DCMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE:-Release}" ..
+make ossfuzz ossfuzz_proto ossfuzz_abiv2