diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
new file mode 100644
index 00000000000..2d3e38a63a3
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,39 @@
+---
+name: Bug report
+about: Use this template for reporting issues
+title: ''
+labels: bug
+assignees: ''
+---
+
+### 🐛 Bug Report
+
+#### 📝 Description
+
+Provide a clear and concise description of the bug.
+
+#### 🔄 Reproduction Steps
+
+Steps to reproduce the behaviour
+
+#### 🤔 Expected Behavior
+
+Describe what you expected to happen.
+
+#### 😯 Current Behavior
+
+Describe what actually happened.
+
+#### 🖥️ Environment
+
+Any relevant environment details.
+
+#### 📋 Additional Context
+
+Add any other context about the problem here. If applicable, add screenshots to help explain.
+
+#### 📎 Log Output
+
+```
+Paste any relevant log output here.
+```
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
new file mode 100644
index 00000000000..d921e066ccc
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -0,0 +1,21 @@
+---
+name: Feature request
+about: Use this template for requesting features
+title: ''
+labels: feat
+assignees: ''
+---
+
+### 🌟 Feature Request
+
+#### 📝 Description
+
+Provide a clear and concise description of the feature you'd like to see.
+
+#### 🤔 Rationale
+
+Explain why this feature is important and how it benefits the project.
+
+#### 📋 Additional Context
+
+Add any other context or information about the feature request here.
diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
new file mode 100644
index 00000000000..8ce206c849e
--- /dev/null
+++ b/.github/pull_request_template.md
@@ -0,0 +1,20 @@
+# What ❔
+
+<!-- What are the changes this PR brings about? -->
+<!-- Example: This PR adds a PR template to the repo. -->
+<!-- (For bigger PRs adding more context is appreciated) -->
+
+## Why ❔
+
+<!-- Why are these changes done? What goal do they contribute to? What are the principles behind them? -->
+<!-- Example: PR templates ensure PR reviewers, observers, and future iterators are in context about the evolution of repos. -->
+
+## Checklist
+
+<!-- Check your PR fulfills the following items. -->
+<!-- For draft PRs check the boxes as you complete them. -->
+
+- [ ] PR title corresponds to the body of PR (we generate changelog entries from PRs).
+- [ ] Tests for the changes have been added / updated.
+- [ ] Documentation comments have been added / updated.
+- [ ] Code has been formatted via `zk fmt` and `zk lint`.
diff --git a/.github/workflows/license.yaml b/.github/workflows/license.yaml
deleted file mode 100644
index afc7d220007..00000000000
--- a/.github/workflows/license.yaml
+++ /dev/null
@@ -1,54 +0,0 @@
-name: CI
-
-on:
-  pull_request
-
-env:
-  ALLOWED_LICENSES: >
-    MIT;
-    BSD;
-    ISC;
-    Apache-2.0;
-    MPL-2.0;
-    LGPL-3.0;
-    LGPL-3.0-or-later;
-    CC0-1.0;
-    CC-BY-3.0;
-    CC-BY-4.0;
-    Python-2.0;
-    PSF;
-    Public Domain;
-    WTFPL;
-    Unlicense;
-  # It has to be one line, there must be no space between packages.
-  EXCLUDE_PACKAGES: testrpc@0.0.1;uuid@2.0.1;
-
-jobs:
-  license-check:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout latest code
-        uses: actions/checkout@v3
-
-      - name: Use Node.js
-        uses: actions/setup-node@v3
-        with:
-          node-version: '16.15.1'
-
-      - name: Install yarn
-        run: npm install -g yarn license-checker
-
-      - name: Install dependencies in ethereum
-        run: cd ethereum && yarn install
-
-      - name: Check licenses in ethereum
-        working-directory: ethereum
-        run: npx license-checker --json --onlyAllow="$ALLOWED_LICENSES" --excludePackages "$EXCLUDE_PACKAGES"
-
-      - name: Install dependencies in zksync
-        run: cd zksync && yarn install
-
-      - name: Check licenses in zksync
-        working-directory: zksync
-        run: npx license-checker --json --onlyAllow="$ALLOWED_LICENSES" --excludePackages "$EXCLUDE_PACKAGES"
-
diff --git a/.github/workflows/nodejs-license.yaml b/.github/workflows/nodejs-license.yaml
new file mode 100644
index 00000000000..c582d7c24b8
--- /dev/null
+++ b/.github/workflows/nodejs-license.yaml
@@ -0,0 +1,62 @@
+name: Node license check
+
+on: pull_request
+
+env:
+  ALLOWED_LICENSES: >
+    MIT;
+    BSD;
+    ISC;
+    Apache-2.0;
+    MPL-2.0;
+    LGPL-3.0;
+    LGPL-3.0-or-later;
+    CC0-1.0;
+    CC-BY-3.0;
+    CC-BY-4.0;
+    Python-2.0;
+    PSF;
+    Public Domain;
+    WTFPL;
+    Unlicense;
+  # It has to be one line, there must be no space between packages.
+  EXCLUDE_PACKAGES: testrpc@0.0.1;uuid@2.0.1;
+
+jobs:
+  generate-matrix:
+    name: Lists modules
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.set-matrix.outputs.matrix }}
+    steps:
+      - uses: actions/checkout@v3
+      - run: |
+          DIRS=$(find -not \( -path \*node_modules -prune \) -type f -name yarn.lock  | xargs dirname | awk -v RS='' -v OFS='","' 'NF { $1 = $1; print "\"" $0 "\"" }')
+          echo "matrix=[${DIRS}]" >> $GITHUB_OUTPUT
+        id: set-matrix
+
+  license-check:
+    needs: [generate-matrix]
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        dir: ${{ fromJson(needs.generate-matrix.outputs.matrix) }}
+    steps:
+      - name: Checkout latest code
+        uses: actions/checkout@v3
+
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16.15.1
+
+      - name: Install yarn
+        run: npm install -g yarn license-checker
+
+      - name: Install dependencies in ${{ matrix.dir }}
+        working-directory: ${{ matrix.dir }}
+        run: yarn install
+
+      - name: Check licenses in ${{ matrix.dir }}
+        working-directory: ${{ matrix.dir }}
+        run: npx license-checker --json --onlyAllow="$ALLOWED_LICENSES" --excludePackages "$EXCLUDE_PACKAGES"
diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 00000000000..2f2871cea1c
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,74 @@
+# Security Policy
+
+We truly appreciate efforts to discover and disclose security issues responsibly!
+
+## Vulnerabilities
+
+If you'd like to report a security issue in the repositories of matter-labs organization, please proceed to our
+[Bug Bounty Program on Immunefi](https://era.zksync.io/docs/reference/troubleshooting/audit-bug-bounty.html#bug-bounty-program).
+
+## Other Security Issues
+
+We take an impact-first approach instead of a rules-first approach. Therefore, if you believe you found the impactful
+issue but can't report it via the Bug Bounty, please email us at
+[security@matterlabs.dev](mailto:security@matterlabs.dev).
+
+### PGP Key
+
+The following PGP key may be used to communicate sensitive information to developers:
+
+Fingerprint: `5FED B2D0 EA2C 4906 DD66 71D7 A2C5 0B40 CE3C F297`
+
+```
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+```