diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index b403a1eb737c..9d7efc7d4c29 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -5,6 +5,7 @@ on:
   pull_request:
     types: [opened, synchronize]
     branches-ignore: [staging, production]
+    paths: ['**.js', '**.ts', '**.tsx']
 
 jobs:
   lint:
@@ -12,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8
+        uses: actions/checkout@v3
 
       - name: Setup Node
         uses: Expensify/App/.github/actions/composite/setupNode@main
@@ -22,9 +23,6 @@ jobs:
         env:
           CI: true
 
-      - name: Lint shell scripts with ShellCheck
-        run: npm run shellcheck
-
       - name: Verify there's no Prettier diff
         run: |
           npm run prettier -- --loglevel silent
diff --git a/.github/workflows/preDeploy.yml b/.github/workflows/preDeploy.yml
index 11753a383219..bae843e74709 100644
--- a/.github/workflows/preDeploy.yml
+++ b/.github/workflows/preDeploy.yml
@@ -2,8 +2,8 @@ name: Process new code merged to main
 
 on:
   push:
-    branches:
-      - main
+    branches: [main]
+    paths-ignore: [docs/**, contributingGuides/**, jest/**, tests/**, workflow_tests/**]
 
 jobs:
   typecheck:
@@ -112,71 +112,6 @@ jobs:
         with:
           SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
 
-  # Check if actor is member of Expensify organization by looking for Expensify/expensify team
-  isExpensifyEmployee:
-    runs-on: ubuntu-latest
-
-    outputs:
-      IS_EXPENSIFY_EMPLOYEE: ${{ fromJSON(steps.checkAuthor.outputs.IS_EXPENSIFY_EMPLOYEE) }}
-
-    steps:
-      - name: Get merged pull request
-        id: getMergedPullRequest
-        uses: roryabraham/action-get-merged-pull-request@7a7a194f6ff8f3eef58c822083695a97314ebec1
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Check whether the PR author is member of Expensify/expensify team
-        id: checkAuthor
-        run: |
-          if gh api /orgs/Expensify/teams/expensify-expensify/memberships/${{ steps.getMergedPullRequest.outputs.author }} --silent; then
-            echo "IS_EXPENSIFY_EMPLOYEE=true" >> "$GITHUB_OUTPUT"
-          else
-            echo "IS_EXPENSIFY_EMPLOYEE=false" >> "$GITHUB_OUTPUT"
-          fi
-        env:
-          GITHUB_TOKEN: ${{ secrets.OS_BOTIFY_TOKEN }}
-
-  newContributorWelcomeMessage:
-    runs-on: ubuntu-latest
-    needs: isExpensifyEmployee
-    if: ${{ github.actor != 'OSBotify' && !fromJSON(needs.isExpensifyEmployee.outputs.IS_EXPENSIFY_EMPLOYEE) && github.actor != 'imgbot[bot]' }}
-    steps:
-      # Version: 2.3.4
-      - name: Checkout
-        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8
-        with:
-          token: ${{ secrets.OS_BOTIFY_TOKEN }}
-
-      - name: Get merged pull request
-        id: getMergedPullRequest
-        # TODO: Point back action actions-ecosystem after https://github.com/actions-ecosystem/action-get-merged-pull-request/pull/223 is merged
-        uses: roryabraham/action-get-merged-pull-request@7a7a194f6ff8f3eef58c822083695a97314ebec1
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Get PR count for ${{ steps.getMergedPullRequest.outputs.author }}
-        run: echo "PR_COUNT=$(gh pr list --author ${{ steps.getMergedPullRequest.outputs.author }} --state any | grep -c '')" >> "$GITHUB_ENV"
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Comment on ${{ steps.getMergedPullRequest.outputs.author }}\'s first pull request!
-        if: ${{ fromJSON(env.PR_COUNT) == 1 }}
-        uses: actions-ecosystem/action-create-comment@cd098164398331c50e7dfdd0dfa1b564a1873fac
-        with:
-          github_token: ${{ secrets.OS_BOTIFY_TOKEN }}
-          number: ${{ steps.getMergedPullRequest.outputs.number }}
-          body: |
-            @${{ steps.getMergedPullRequest.outputs.author }}, Great job getting your first Expensify/App pull request over the finish line! :tada:
-
-            I know there's a lot of information in our [contributing guidelines](https://github.com/Expensify/App/blob/main/contributingGuides/CONTRIBUTING.md), so here are some points to take note of :memo::
-
-            1. Now that your first PR has been merged, you can be hired for another issue. Once you've completed a few issues, you may be eligible to work on more than one job at a time.
-            2. Once your PR is deployed to our staging servers, it will undergo quality assurance (QA) testing. If we find that it doesn't work as expected or causes a regression, you'll be responsible for fixing it. Typically, we would revert this PR and give you another chance to create a similar PR without causing a regression.
-            3. Once your PR is deployed to _production_, we start a 7-day timer :alarm_clock:. After it has been on production for 7 days without causing any regressions, then we pay out the Upwork job. :moneybag:
-
-            So it might take a while before you're paid for your work, but we typically post multiple new jobs every day, so there's plenty of opportunity. I hope you've had a positive experience contributing to this repo! :blush:
-
   e2ePerformanceTests:
     needs: [chooseDeployActions]
     if: ${{ needs.chooseDeployActions.outputs.SHOULD_DEPLOY }}
diff --git a/.github/workflows/reassurePerformanceTests.yml b/.github/workflows/reassurePerformanceTests.yml
index ab5e1d06e5a4..b259ff9052b6 100644
--- a/.github/workflows/reassurePerformanceTests.yml
+++ b/.github/workflows/reassurePerformanceTests.yml
@@ -4,6 +4,7 @@ on:
   pull_request:
     types: [opened, synchronize]
     branches-ignore: [staging, production]
+    paths-ignore: [docs/**, .github/**, contributingGuides/**, tests/**, workflow_tests/**, '**.md', '**.sh']
 
 jobs:
   perf-tests:
diff --git a/.github/workflows/shellCheck.yml b/.github/workflows/shellCheck.yml
new file mode 100644
index 000000000000..609541e9a660
--- /dev/null
+++ b/.github/workflows/shellCheck.yml
@@ -0,0 +1,19 @@
+name: Lint shell code
+
+on:
+  workflow_call:
+  pull_request:
+    types: [opened, synchronize]
+    branches-ignore: [staging, production]
+    paths: ['**.sh']
+
+jobs:
+  lint:
+    if: ${{ github.actor != 'OSBotify' || github.event_name == 'workflow_call' }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Lint shell scripts with ShellCheck
+        run: npm run shellcheck
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c37f3a766f7c..fa47a2f61d4a 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -5,6 +5,7 @@ on:
   pull_request:
     types: [opened, synchronize]
     branches-ignore: [staging, production]
+    paths: ['**.js', '**.ts', '**.tsx', '**.sh', 'package.json', 'package-lock.json']
 
 jobs:
   jest:
diff --git a/.github/workflows/typecheck.yml b/.github/workflows/typecheck.yml
index de433b2ae88a..776169fc6058 100644
--- a/.github/workflows/typecheck.yml
+++ b/.github/workflows/typecheck.yml
@@ -5,6 +5,7 @@ on:
   pull_request:
     types: [opened, synchronize]
     branches-ignore: [staging, production]
+    paths: ['**.ts', '**.tsx', 'package.json', 'package-lock.json']
 
 jobs:
   typecheck:
diff --git a/.github/workflows/welcome.yml b/.github/workflows/welcome.yml
new file mode 100644
index 000000000000..43e0e1650381
--- /dev/null
+++ b/.github/workflows/welcome.yml
@@ -0,0 +1,55 @@
+name: Post new contributor welcome message
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  newContributorWelcomeMessage:
+    runs-on: ubuntu-latest
+    if: ${{ github.actor != 'OSBotify' && github.actor != 'imgbot[bot]' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Get merged pull request
+        id: getMergedPullRequest
+        run: |
+          read -r number author < <(gh pr list --search ${{ github.sha }} --state merged --json 'number,author' | jq -r '.[0] | [.number, .author.login] | join(" ")')
+          echo "number=$number" >> "$GITHUB_OUTPUT"
+          echo "author=$author" >> "$GITHUB_OUTPUT"
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+
+      - name: Check whether the PR author is member of Expensify/expensify team
+        id: isExpensifyEmployee
+        run: |
+          if gh api /orgs/Expensify/teams/expensify-expensify/memberships/${{ steps.getMergedPullRequest.outputs.author }} --silent; then
+            echo "IS_EXPENSIFY_EMPLOYEE=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "IS_EXPENSIFY_EMPLOYEE=false" >> "$GITHUB_OUTPUT"
+          fi
+        env:
+          GITHUB_TOKEN: ${{ secrets.OS_BOTIFY_TOKEN }}
+
+      - name: Get PR count for ${{ steps.getMergedPullRequest.outputs.author }}
+        id: getPRCount
+        run: echo "PR_COUNT=$(gh pr list --author ${{ steps.getMergedPullRequest.outputs.author }} --state any | grep -c '')" >> "$GITHUB_OUTPUT"
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+
+      - name: Comment on ${{ steps.getMergedPullRequest.outputs.author }}\'s first pull request!
+        if: ${{ fromJSON(steps.getPRCount.outputs.PR_COUNT) == 1 }}
+        run: |
+          gh pr comment ${{ steps.getMergedPullRequest.outputs.number }} --body \
+          "@${{ steps.getMergedPullRequest.outputs.author }}, Great job getting your first Expensify/App pull request over the finish line! :tada:
+
+          I know there's a lot of information in our [contributing guidelines](https://github.com/Expensify/App/blob/main/contributingGuides/CONTRIBUTING.md), so here are some points to take note of :memo::
+
+          1. Now that your first PR has been merged, you can be hired for another issue. Once you've completed a few issues, you may be eligible to work on more than one job at a time.
+          2. Once your PR is deployed to our staging servers, it will undergo quality assurance (QA) testing. If we find that it doesn't work as expected or causes a regression, you'll be responsible for fixing it. Typically, we would revert this PR and give you another chance to create a similar PR without causing a regression.
+          3. Once your PR is deployed to _production_, we start a 7-day timer :alarm_clock:. After it has been on production for 7 days without causing any regressions, then we pay out the Upwork job. :moneybag:
+
+          So it might take a while before you're paid for your work, but we typically post multiple new jobs every day, so there's plenty of opportunity. I hope you've had a positive experience contributing to this repo! :blush:"
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
diff --git a/scripts/shellCheck.sh b/scripts/shellCheck.sh
index 14424b4d9b30..d148958900d4 100755
--- a/scripts/shellCheck.sh
+++ b/scripts/shellCheck.sh
@@ -22,7 +22,13 @@ info
 
 ASYNC_PROCESSES=()
 for SHELL_SCRIPT in $SHELL_SCRIPTS; do
-  npx shellcheck -e SC1091 "$SHELL_SCRIPT" &
+  if [[ "$CI" == 'true' ]]; then
+    # ShellCheck is installed by default on GitHub Actions ubuntu runners
+    shellcheck -e SC1091 "$SHELL_SCRIPT" &
+  else
+    # Otherwise shellcheck is used via npx
+    npx shellcheck -e SC1091 "$SHELL_SCRIPT" &
+  fi
   ASYNC_PROCESSES+=($!)
 done
 
