diff --git a/.config/nextest.toml b/.config/nextest.toml
index c22751e91e..f7ca24a955 100644
--- a/.config/nextest.toml
+++ b/.config/nextest.toml
@@ -5,5 +5,7 @@ failure-output = "immediate-final"
 fail-fast = false
 # Show all tests in the CI output.
 status-level = "all"
+# Test statuses at the end of the run.
+final-status-level = "slow"
 # Retries the test n times, tests that succeed on a subsequent attempt will be marked as flaky
 retries = 10
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4d3e4fcc5f..dc5d963bc6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -22,10 +22,14 @@ on:
        - 'book/**'
 
 env:
+  RUST_LATEST_STABLE_VERSION: 1.65
   CARGO_TERM_COLOR: always
   RUSTFLAGS: -D warnings
   RUST_BACKTRACE: 1
   CARGO_INCREMENTAL: 0
+  CARGO_FLAGS: --verbose --locked
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 15
+
 
 jobs:
   cancel:
@@ -40,25 +44,29 @@ jobs:
   build_on_linux:
     name: Build Catalyst Core on Linux
     runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
 
-      - uses: Swatinem/rust-cache@v2
+      - name: Install rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
+
+      - name: Cache rust
+        uses: Swatinem/rust-cache@v2
+        with:
+          shared-key: "build_cache"
+          save-if: ${{ github.ref == 'refs/heads/main' }}
 
       - name: Install deps
         run:
           sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
       - name: Build on Linux
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: "1.65"
-      - run: cargo build
+        run: cargo build ${{env.CARGO_FLAGS}}
 
   build_on_windows:
     name: Build Catalyst Core on Windows
@@ -89,7 +97,8 @@ jobs:
           reg add HKLM\SYSTEM\CurrentControlSet\Control\FileSystem /v LongPathsEnabled /t REG_DWORD /d 1 /f
           git config --system core.longpaths true
 
-      - uses: Swatinem/rust-cache@v2
+      - name: Cache rust
+        uses: Swatinem/rust-cache@v2
         with:
           workspaces: "C:\\${{ github.event.repository.name }}"
 
@@ -108,10 +117,11 @@ jobs:
         run: |
           "PQ_LIB_DIR=${env:PROGRAMFILES}\PostgreSQL\14\lib" >> $env:GITHUB_ENV
 
-      - uses: actions-rs/toolchain@v1
+      - name: Install rust
+        uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"
+          toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
 
       - name: Build on Windows
         working-directory: "C:\\${{ github.event.repository.name }}"
-        run: cargo build --workspace
+        run: cargo build --workspace ${{env.CARGO_FLAGS}}
diff --git a/.github/workflows/ci-tests-n-coverage.yml b/.github/workflows/ci-tests-n-coverage.yml
index 78f4ecd486..3bdc53d7af 100644
--- a/.github/workflows/ci-tests-n-coverage.yml
+++ b/.github/workflows/ci-tests-n-coverage.yml
@@ -6,10 +6,14 @@ on:
     - cron: '5 0 * * *'
 
 env:
+  RUST_LATEST_STABLE_VERSION: 1.65
   CARGO_TERM_COLOR: always
   RUSTFLAGS: -D warnings
   RUST_BACKTRACE: 1
   CARGO_INCREMENTAL: 0
+  CARGO_FLAGS: --verbose --locked
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 15
+
 
 concurrency:
   group: ${{ github.sha }}
@@ -20,25 +24,37 @@ jobs:
     name: Unit Tests
     runs-on: ubuntu-latest
     needs: [integration-tests]
-    env:
-      CARGO_FLAGS: --verbose --locked
+    services:
+      postgres:
+        image: postgres:14
+        env:
+          POSTGRES_PASSWORD: 123456
+        options:
+          >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - uses: Swatinem/rust-cache@v2
-        with:
-          shared-key: "cov"
-          save-if: "true"
-
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}  # it says it can read the rust-toolchain file, but it fails if we omit this
           components: llvm-tools-preview
 
-      - name: Install cargo-nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
+      - name: Cache rust
+        uses: Swatinem/rust-cache@v2
+        with:
+          shared-key: "build_cache"
+          save-if: "false"
+
+      - name: Install nextest
+        uses: taiki-e/install-action@nextest
 
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
@@ -48,6 +64,8 @@ jobs:
           sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
       - name: Run unit tests
+        env:
+          TEST_DB: postgres
         run: |
           cargo llvm-cov nextest --no-report --manifest-path ./src/catalyst-toolbox/catalyst-toolbox/Cargo.toml --profile ci
           cargo llvm-cov nextest --no-report --manifest-path ./src/catalyst-toolbox/snapshot-lib/Cargo.toml --profile ci
@@ -82,6 +100,7 @@ jobs:
 
           cargo llvm-cov nextest --no-report --manifest-path ./src/jormungandr/jormungandr/Cargo.toml --profile ci
           cargo llvm-cov report --lcov --output-path ./lcov.info
+
       - name: Upload code coverage to coveralls.io
         uses: coverallsapp/github-action@master
         with:
@@ -91,25 +110,37 @@ jobs:
   integration-tests:
     name: Integration Tests
     runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
+    services:
+      postgres:
+        image: postgres:14
+        env:
+          POSTGRES_PASSWORD: postgres
+        options:
+          >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - uses: Swatinem/rust-cache@v2
-        with:
-          shared-key: "cov"
-          save-if: "true"
-
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
         with:
-          toolchain: "1.65"  # it says it can read the rust-toolchain file, but it fails if we omit this
+          toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}  # it says it can read the rust-toolchain file, but it fails if we omit this
           components: llvm-tools-preview
 
-      - name: Install cargo-nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
+      - name: Cache rust
+        uses: Swatinem/rust-cache@v2
+        with:
+          shared-key: "build_cache"
+          save-if: "false"
+
+      - name: Install nextest
+        uses: taiki-e/install-action@nextest
 
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
@@ -119,6 +150,8 @@ jobs:
           sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
       - name: Run integration tests
+        env:
+          TEST_DATABASE_URL: postgres://postgres:postgres@localhost
         run: |
           source <(cargo llvm-cov show-env --export-prefix)
           cargo build -p jcli -p jormungandr -p explorer -p vit-servicing-station-cli -p vit-servicing-station-server
diff --git a/.github/workflows/ci_tests.yml b/.github/workflows/ci_tests.yml
index f7de137610..533da025af 100644
--- a/.github/workflows/ci_tests.yml
+++ b/.github/workflows/ci_tests.yml
@@ -25,10 +25,12 @@ env:
   RUSTFLAGS: -D warnings
   RUST_BACKTRACE: 1
   CARGO_INCREMENTAL: 0
+  CARGO_FLAGS: --verbose --locked
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 15
 
 jobs:
   cancel:
-    name: 'Cancel Previous Runs'
+    name: Cancel previous runs
     runs-on: ubuntu-latest
     timeout-minutes: 3
     steps:
@@ -36,177 +38,190 @@ jobs:
         with:
           access_token: ${{ github.token }}
 
-  vit_servicing_station:
-    name: Vit Servicing Station Tests
+  build-test-dependencies:
+    name: Build test dependencies
     runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: Swatinem/rust-cache@v2
-      - name: Install Nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
-      - name: Install deps
-        run:
-          sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
-      - name: Run vit-ss tests
+      - name: Install rust toolchain
         uses: actions-rs/toolchain@v1
         with:
           toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
-      - run: |
-          cargo build -p vit-servicing-station-cli -p vit-servicing-station-server
-          cargo nextest run \
-            -p vit-servicing-station-cli \
-            -p vit-servicing-station-lib \
-            -p vit-servicing-station-tests \
-            -p vit-servicing-station-server \
-            --profile ci
-
-  catalyst_toolbox:
-    name: Catalyst Toolbox Tests
-    runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
+
+      - name: Cache rust
+        uses: Swatinem/rust-cache@v2
         with:
-          ref: ${{ github.event.pull_request.head.sha }}
-      - uses: Swatinem/rust-cache@v2
-      - name: Install Nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
-      - name: Install deps
+          shared-key: "test_cache"
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+
+      - name: Install dependencies
         run:
           sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
-      - name: Run catalyst-toolbox tests
-        uses: actions-rs/toolchain@v1
+      - name: Build external dependencies
+        run:
+          cargo build -p vit-servicing-station-cli -p vit-servicing-station-server -p jcli -p jormungandr -p explorer
+
+      - name: Save external dependencies
+        uses: actions/cache/save@v3
         with:
-          toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
-      - run: cargo nextest run -p catalyst-toolbox -p snapshot-lib --profile ci
+          path: |
+                  target/debug/vit-servicing-station-cli
+                  target/debug/vit-servicing-station-server
+                  target/debug/jcli
+                  target/debug/jormungandr
+                  target/debug/explorer
+          key: deps-${{ github.run_id }}-${{ github.run_attempt }}
+
 
-  voting_tools:
-    name: Voting Tools Tests
+  build-tests-artifacts:
+    name: Build test artifacts
     runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: Swatinem/rust-cache@v2
-      - name: Install Nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
-      - name: Install deps
-        run:
-          sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
-      - name: Run voting-tools tests
+      - name: Install rust toolchain
         uses: actions-rs/toolchain@v1
         with:
           toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
-      - run: cargo nextest run -p voting_tools_rs --profile ci
 
-  chain-libs:
-    name: Chain Libs Tests
-    runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
+      - name: Cache rust
+        uses: Swatinem/rust-cache@v2
         with:
-          ref: ${{ github.event.pull_request.head.sha }}
-      - uses: Swatinem/rust-cache@v2
-      - name: Install Nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
-      - name: Install deps
+          shared-key: "test_cache"
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+
+      - name: Install nextest
+        uses: taiki-e/install-action@nextest
+
+      - name: Install dependencies
         run:
           sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
-      - name: Run chain-libs tests
-        uses: actions-rs/toolchain@v1
+      - name: Build and archive tests
+        run: cargo nextest archive --archive-file nextest-archive.tar.zst
+
+      - name: Save test archive
+        uses: actions/cache/save@v3
         with:
-          toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
-      - run: cargo nextest run -p "chain-*" --profile ci
+          path: nextest-archive.tar.zst
+          key: nextest-archive-${{ github.run_id }}-${{ github.run_attempt }}
 
-  jormungandr:
-    name: Jormungandr Tests
+  catalyst-core-tests:
+    name: Catalyst Core tests
     runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
+    needs: [build-tests-artifacts, build-test-dependencies]
+    services:
+      postgres:
+        image: postgres:14
+        env:
+          POSTGRES_PASSWORD: 123456
+        options:
+          >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
+    strategy:
+      matrix:
+        partition: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: Swatinem/rust-cache@v2
-      - name: Install Nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
-      - name: Install deps
-        run:
-          sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
-      - name: Run jormungandr tests
+      - name: Install rust toolchain
         uses: actions-rs/toolchain@v1
         with:
           toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
-      - run: cargo nextest run -p jormungandr --profile ci
 
-  jormungandr-integration:
-    name: Jormungandr Integration Tests
-    runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v3
+      - name: Cache rust
+        uses: Swatinem/rust-cache@v2
         with:
-          ref: ${{ github.event.pull_request.head.sha }}
-      - uses: Swatinem/rust-cache@v2
-      - name: Install Nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
-      - name: Install deps
+          shared-key: "test_cache"
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+
+      - name: Restore test archive
+        id: archive-cache
+        uses: actions/cache/restore@v3
+        with:
+          path: nextest-archive.tar.zst
+          key: nextest-archive-${{ github.run_id }}-${{ github.run_attempt }}
+
+      - name: Restore external dependencies
+        id: deps-cache
+        uses: actions/cache/restore@v3
+        with:
+          path: |
+                  target/debug/vit-servicing-station-cli
+                  target/debug/vit-servicing-station-server
+                  target/debug/jcli
+                  target/debug/jormungandr
+                  target/debug/explorer
+          key: deps-${{ github.run_id }}-${{ github.run_attempt }}
+
+      - name: Install nextest
+        uses: taiki-e/install-action@nextest
+
+      - name: Install dependencies
         run:
           sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
-      - name: Run jormungandr-integration tests
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
-      - run: |
-           cargo build -p jcli -p jormungandr -p explorer
-           cargo nextest run -p jormungandr-integration-tests --profile ci
+      - name: Build external dependencies
+        if: steps.deps-cache.outputs.cache-hit != 'true'
+        run:
+          cargo build -p vit-servicing-station-cli -p vit-servicing-station-server -p jcli -p jormungandr -p explorer
+
+      - name: Build and archive tests
+        if: steps.archive-cache.outputs.cache-hit != 'true'
+        run: cargo nextest archive --archive-file nextest-archive.tar.zst
+
+      - name: Run Catalyst Core tests
+        env:
+          TEST_DB: postgres
+          TEST_DATABASE_URL: postgres://postgres:123456@localhost
+        ## removing test ui_test because of bug https://github.com/rust-lang/cargo/issues/10352
+        run: |
+          cargo nextest run \
+          -E "not (package(vitup) + package(mainnet-lib) + package(jortestkit) + package(integration-tests) \
+          + test(multi_voteplan_ok_private) + test(ui_test))" \
+          --archive-file nextest-archive.tar.zst --extract-to ${{ github.workspace }} \
+          --extract-overwrite --partition hash:${{ matrix.partition }}/10 --profile ci
 
-  jcli:
-    name: Jcli Tests
+  cleanup-cache:
+    name: Clean up run cache
     runs-on: ubuntu-latest
-    env:
-      CARGO_FLAGS: --verbose --locked
+    permissions:
+      actions: write
+    needs: catalyst-core-tests
+    if: always()
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: Swatinem/rust-cache@v2
-      - name: Install Nextest
-        run: curl -LsSf https://get.nexte.st/latest/linux | tar zxf - -C ${CARGO_HOME:-~/.cargo}/bin
-      - name: Install deps
-        run:
-          sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
 
-      - name: Run jcli tests
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
-      - run: |
-           cargo build -p jcli
-           cargo nextest run -p jcli --profile ci
+      - name: Clean up archive and deps cache
+        run: |
+          gh extension install actions/gh-actions-cache
+          ## Setting this to not fail the workflow while deleting cache keys.
+          set +e
+          echo "Deleting caches..."
+          gh actions-cache delete nextest-archive-${{ github.run_id }}-${{ github.run_attempt }} --confirm
+          gh actions-cache delete deps-${{ github.run_id }}-${{ github.run_attempt }} --confirm
+          echo "Done"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
   wallet-js-binding:
     name: Wallet JS Binding Tests
@@ -248,13 +263,21 @@ jobs:
         uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
-      - uses: Swatinem/rust-cache@v2
-      - name: Install deps
+
+      - name: Cache rust
+        uses: Swatinem/rust-cache@v2
+        with:
+          shared-key: "build_cache"
+          save-if: ${{ github.ref == 'refs/heads/main' }}
+
+      - name: Install dependencies
         run:
           sudo apt install -y protobuf-compiler libssl-dev libpq-dev libsqlite3-dev pkg-config
+
       - name: Clippy and fmt
         uses: actions-rs/toolchain@v1
         with:
           toolchain: ${{env.RUST_LATEST_STABLE_VERSION}}
           components: rustfmt, clippy
+
       - run: scripts/check-fmt.sh
\ No newline at end of file