diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 4b6d6ddfc32..426f431dc18 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -31,14 +31,9 @@ jobs:
         with:
           token: ${{ secrets.PULUMI_BOT_TOKEN }}
 
-      - name: Fetch the latest pulumi/registry
-        run: |
-          hugo mod get github.com/pulumi/registry/themes/default
-          hugo mod tidy
-
       - name: Build assets
         run: |
-          make ensure build-assets
+          make ensure ci-await build-assets
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -48,12 +43,6 @@ jobs:
           file_pattern: theme/default/assets/js/bundle.js theme/default/assets/js/marketing.js theme/default/assets/css/bundle.css theme/default/assets/css/marketing.css
           commit_message: Commit asset bundles
 
-      - name: Commit any changes to go.mod/go.sum
-        uses: stefanzweifel/git-auto-commit-action@v4
-        with:
-          file_pattern: go.*
-          commit_message: Update go.mod
-
   notify:
     if: failure()
     name: Send slack notification
diff --git a/Makefile b/Makefile
index 0a58cb2d8ce..7fb90675556 100644
--- a/Makefile
+++ b/Makefile
@@ -41,6 +41,10 @@ serve-all:
 build-assets:
 	yarn --cwd ./themes/default/theme run build
 
+.PHONY: ci-await
+ci-await:
+	node ./scripts/ci/await-in-progress.js
+
 .PHONY: ci-pull-request
 ci-pull-request: ensure lint
 	./scripts/ci/pull-request.sh
diff --git a/config/_default/config.yml b/config/_default/config.yml
index d8fdf5297c4..bbfee73b271 100644
--- a/config/_default/config.yml
+++ b/config/_default/config.yml
@@ -19,18 +19,6 @@ module:
           target: assets
         - source: archetypes
           target: archetypes
-    - path: github.com/pulumi/registry/themes/default
-      mounts:
-        - source: content
-          target: content
-        - source: static
-          target: static
-        - source: layouts
-          target: layouts
-        - source: data
-          target: data
-        - source: assets
-          target: assets
 
 security:
   funcs:
diff --git a/go.mod b/go.mod
index 1c9bb96f9b6..7e5f926a4e5 100644
--- a/go.mod
+++ b/go.mod
@@ -6,5 +6,4 @@ replace github.com/pulumi/pulumi-hugo/themes/default => ./themes/default
 
 require (
 	github.com/pulumi/pulumi-hugo/themes/default v0.0.0-20220504042409-82f5a4588c0e // indirect
-	github.com/pulumi/registry/themes/default v0.0.0-20231026190107-c5b5b57df03e // indirect
 )
diff --git a/go.sum b/go.sum
index a86020dd785..ca27b801c3d 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1 @@
 github.com/pulumi/pulumi-hugo/themes/default v0.0.0-20220504042409-82f5a4588c0e/go.mod h1:081/gGTOxNFBjrLQ3QvsyP34iiWgmmKDtoi5falfsuo=
-github.com/pulumi/registry/themes/default v0.0.0-20231026190107-c5b5b57df03e h1:FIiBsq7bYbZv/UGHyLNmX0jbUeMrMxPt8QjEnngyCcw=
-github.com/pulumi/registry/themes/default v0.0.0-20231026190107-c5b5b57df03e/go.mod h1:QSvobZqmJMqVmn3BTfSiYkbRKtJHhSA8gotu/pD1a0w=
diff --git a/package.json b/package.json
index c99174f6e00..e31ea2ea353 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,7 @@
     "author": "Christian Nunciato <c@nunciato.org>",
     "license": "MIT",
     "dependencies": {
+        "@octokit/rest": "^20.0.2",
         "concurrently": "^6.0.0",
         "js-yaml": "^3.13.1",
         "markdownlint": "^0.17.2",
diff --git a/scripts/ci/await-in-progress.js b/scripts/ci/await-in-progress.js
new file mode 100644
index 00000000000..bfe788d26e5
--- /dev/null
+++ b/scripts/ci/await-in-progress.js
@@ -0,0 +1,60 @@
+const { Octokit } = require("@octokit/rest");
+
+// Wait for any in-progress runs of the same workflow on this branch to complete before
+// proceeding. In other words, if the current workflow is an instance of the "foo"
+// workflow, and there's another "foo" workflow running for a different commit on the same
+// branch as this one, wait for that workflow to complete before exiting (in order to
+// prevent the current workflow from continuing).
+// Inspired by https://github.com/softprops/turnstyle.
+async function waitForInProgressRuns() {
+    // See https://docs.github.com/en/free-pro-team@latest/actions/reference/environment-variables
+    // for an explanation of each of these variables.
+    const githubToken = process.env.GITHUB_TOKEN;
+    const currentRunID = parseInt(process.env.GITHUB_RUN_ID, 10);
+    const workflowName = process.env.GITHUB_WORKFLOW;
+    const [owner, repo] = process.env.GITHUB_REPOSITORY.split("/");
+    const branch = process.env.GITHUB_HEAD_REF || process.env.GITHUB_REF.replace("refs/heads/", "");
+    const status = "in_progress";
+
+    const octokit = new Octokit({
+        auth: githubToken,
+    });
+
+    // Given the current workflow name, fetch its ID.
+    const workflows = await octokit.rest.actions.listRepoWorkflows({ owner, repo });
+    const workflow_id = workflows.data.workflows.find(workflow => workflow.name === workflowName).id;
+
+    // Fetch a paginated list of in-progress runs of the current workflow.
+    const runs = await octokit.paginate(
+        octokit.rest.actions.listWorkflowRuns.endpoint.merge({
+            owner,
+            repo,
+            branch,
+            workflow_id,
+            status,
+        }),
+    );
+
+    // Sort in-progress runs descendingly, excluding the current one.
+    const recent = runs.sort((a, b) => b.id - a.id).filter(run => run.id < currentRunID);
+
+    console.log(`Found ${recent.length} other ${workflowName} job(s) running on branch ${branch}.`);
+
+    if (recent.length > 0) {
+        const [mostRecent] = recent;
+        console.log(`Waiting for ${mostRecent.html_url} to complete before continuing.`);
+        await Promise.resolve(setTimeout(waitForInProgressRuns, 60000)); // One minute.
+    } else {
+        console.log("Continuing.");
+    }
+}
+
+// Unhandled errors that happen within Promises yield warnings, but do not (yet) cause the
+// process to exit nonzero. Since we want this script to fail loudly when something goes
+// wrong, we listen for unhandledRejection events and rethrow, exiting 1.
+// https://nodejs.org/api/process.html#process_event_unhandledrejection
+process.on("unhandledRejection", error => {
+    throw error;
+});
+
+waitForInProgressRuns();
diff --git a/yarn.lock b/yarn.lock
index 9a5228b1841..ba6fc252858 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -23,6 +23,103 @@
     chalk "^2.0.0"
     js-tokens "^4.0.0"
 
+"@octokit/auth-token@^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@octokit/auth-token/-/auth-token-4.0.0.tgz#40d203ea827b9f17f42a29c6afb93b7745ef80c7"
+  integrity sha512-tY/msAuJo6ARbK6SPIxZrPBms3xPbfwBrulZe0Wtr/DIY9lje2HeV1uoebShn6mx7SjCHif6EjMvoREj+gZ+SA==
+
+"@octokit/core@^5.0.0":
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/@octokit/core/-/core-5.0.1.tgz#865da2b30d54354cccb6e30861ddfa0e24494780"
+  integrity sha512-lyeeeZyESFo+ffI801SaBKmCfsvarO+dgV8/0gD8u1d87clbEdWsP5yC+dSj3zLhb2eIf5SJrn6vDz9AheETHw==
+  dependencies:
+    "@octokit/auth-token" "^4.0.0"
+    "@octokit/graphql" "^7.0.0"
+    "@octokit/request" "^8.0.2"
+    "@octokit/request-error" "^5.0.0"
+    "@octokit/types" "^12.0.0"
+    before-after-hook "^2.2.0"
+    universal-user-agent "^6.0.0"
+
+"@octokit/endpoint@^9.0.0":
+  version "9.0.1"
+  resolved "https://registry.yarnpkg.com/@octokit/endpoint/-/endpoint-9.0.1.tgz#c3f69d27accddcb04a3199fcef541804288149d2"
+  integrity sha512-hRlOKAovtINHQPYHZlfyFwaM8OyetxeoC81lAkBy34uLb8exrZB50SQdeW3EROqiY9G9yxQTpp5OHTV54QD+vA==
+  dependencies:
+    "@octokit/types" "^12.0.0"
+    is-plain-object "^5.0.0"
+    universal-user-agent "^6.0.0"
+
+"@octokit/graphql@^7.0.0":
+  version "7.0.2"
+  resolved "https://registry.yarnpkg.com/@octokit/graphql/-/graphql-7.0.2.tgz#3df14b9968192f9060d94ed9e3aa9780a76e7f99"
+  integrity sha512-OJ2iGMtj5Tg3s6RaXH22cJcxXRi7Y3EBqbHTBRq+PQAqfaS8f/236fUrWhfSn8P4jovyzqucxme7/vWSSZBX2Q==
+  dependencies:
+    "@octokit/request" "^8.0.1"
+    "@octokit/types" "^12.0.0"
+    universal-user-agent "^6.0.0"
+
+"@octokit/openapi-types@^19.0.2":
+  version "19.0.2"
+  resolved "https://registry.yarnpkg.com/@octokit/openapi-types/-/openapi-types-19.0.2.tgz#d72778fe2f6151314b6f0201fbc771bb741276fc"
+  integrity sha512-8li32fUDUeml/ACRp/njCWTsk5t17cfTM1jp9n08pBrqs5cDFJubtjsSnuz56r5Tad6jdEPJld7LxNp9dNcyjQ==
+
+"@octokit/plugin-paginate-rest@^9.0.0":
+  version "9.1.2"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-9.1.2.tgz#3d6196db8463bd0d935f4c9bc78de6325c95cbb8"
+  integrity sha512-euDbNV6fxX6btsCDnZoZM4vw3zO1nj1Z7TskHAulO6mZ9lHoFTpwll6farf+wh31mlBabgU81bBYdflp0GLVAQ==
+  dependencies:
+    "@octokit/types" "^12.1.1"
+
+"@octokit/plugin-request-log@^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-request-log/-/plugin-request-log-4.0.0.tgz#260fa6970aa97bbcbd91f99f3cd812e2b285c9f1"
+  integrity sha512-2uJI1COtYCq8Z4yNSnM231TgH50bRkheQ9+aH8TnZanB6QilOnx8RMD2qsnamSOXtDj0ilxvevf5fGsBhBBzKA==
+
+"@octokit/plugin-rest-endpoint-methods@^10.0.0":
+  version "10.1.2"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-10.1.2.tgz#bf503f47881171bc9380d110793d8d3150158ed3"
+  integrity sha512-JztgZ82CY4JNlPTuF0jh4iWuuGpEi5czFCoXyAbMg4F2XyFBbG5DWAKfa3odRvdZww6Df1tQgBKnqpd9X0WF9g==
+  dependencies:
+    "@octokit/types" "^12.1.1"
+
+"@octokit/request-error@^5.0.0":
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/@octokit/request-error/-/request-error-5.0.1.tgz#277e3ce3b540b41525e07ba24c5ef5e868a72db9"
+  integrity sha512-X7pnyTMV7MgtGmiXBwmO6M5kIPrntOXdyKZLigNfQWSEQzVxR4a4vo49vJjTWX70mPndj8KhfT4Dx+2Ng3vnBQ==
+  dependencies:
+    "@octokit/types" "^12.0.0"
+    deprecation "^2.0.0"
+    once "^1.4.0"
+
+"@octokit/request@^8.0.1", "@octokit/request@^8.0.2":
+  version "8.1.4"
+  resolved "https://registry.yarnpkg.com/@octokit/request/-/request-8.1.4.tgz#12dfaebdb2ea375eaabb41d39d45182531ac2857"
+  integrity sha512-M0aaFfpGPEKrg7XoA/gwgRvc9MSXHRO2Ioki1qrPDbl1e9YhjIwVoHE7HIKmv/m3idzldj//xBujcFNqGX6ENA==
+  dependencies:
+    "@octokit/endpoint" "^9.0.0"
+    "@octokit/request-error" "^5.0.0"
+    "@octokit/types" "^12.0.0"
+    is-plain-object "^5.0.0"
+    universal-user-agent "^6.0.0"
+
+"@octokit/rest@^20.0.2":
+  version "20.0.2"
+  resolved "https://registry.yarnpkg.com/@octokit/rest/-/rest-20.0.2.tgz#5cc8871ba01b14604439049e5f06c74b45c99594"
+  integrity sha512-Ux8NDgEraQ/DMAU1PlAohyfBBXDwhnX2j33Z1nJNziqAfHi70PuxkFYIcIt8aIAxtRE7KVuKp8lSR8pA0J5iOQ==
+  dependencies:
+    "@octokit/core" "^5.0.0"
+    "@octokit/plugin-paginate-rest" "^9.0.0"
+    "@octokit/plugin-request-log" "^4.0.0"
+    "@octokit/plugin-rest-endpoint-methods" "^10.0.0"
+
+"@octokit/types@^12.0.0", "@octokit/types@^12.1.1":
+  version "12.1.1"
+  resolved "https://registry.yarnpkg.com/@octokit/types/-/types-12.1.1.tgz#376726d8435625b3a1b6fcd8cd3e1b03ade939dc"
+  integrity sha512-qnJTldJ1NyGT5MTsCg/Zi+y2IFHZ1Jo5+njNCjJ9FcainV7LjuHgmB697kA0g4MjZeDAJsM3B45iqCVsCLVFZg==
+  dependencies:
+    "@octokit/openapi-types" "^19.0.2"
+
 "@types/normalize-package-data@^2.4.0":
   version "2.4.0"
   resolved "https://registry.npmjs.org/@types/normalize-package-data/-/normalize-package-data-2.4.0.tgz"
@@ -92,6 +189,11 @@ astral-regex@^2.0.0:
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-2.0.0.tgz#483143c567aeed4785759c0865786dc77d7d2e31"
   integrity sha512-Z7tMw1ytTXt5jqMcOP+OQteU1VuNK9Y02uuJtKQ1Sv69jXQKKg5cibLwGJow8yzZP+eAc18EmLGPal0bp36rvQ==
 
+before-after-hook@^2.2.0:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/before-after-hook/-/before-after-hook-2.2.3.tgz#c51e809c81a4e354084422b9b26bad88249c517c"
+  integrity sha512-NzUnlZexiaH/46WDhANlyR2bXRopNg4F/zuSA3OpZnllCUgRaOF2znDioDWrmbNVsuZk6l9pMquQB38cfBZwkQ==
+
 binary-extensions@^2.0.0:
   version "2.2.0"
   resolved "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz"
@@ -243,6 +345,11 @@ debug@^4.3.4:
   dependencies:
     ms "2.1.2"
 
+deprecation@^2.0.0:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/deprecation/-/deprecation-2.3.1.tgz#6368cbdb40abf3373b525ac87e4a260c3a700919"
+  integrity sha512-xmHIy4F3scKVwMsQ4WnVaS8bHOx0DmVwRywosKhaILI0ywMDWPtBSku2HNxRvF7jtwDRsoEwYQSfbxj8b7RlJQ==
+
 eastasianwidth@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/eastasianwidth/-/eastasianwidth-0.2.0.tgz#696ce2ec0aa0e6ea93a397ffcf24aa7840c827cb"
@@ -417,6 +524,11 @@ is-number@^7.0.0:
   resolved "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz"
   integrity sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==
 
+is-plain-object@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-5.0.0.tgz#4427f50ab3429e9025ea7d52e9043a9ef4159344"
+  integrity sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q==
+
 is-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-3.0.0.tgz#e6bfd7aa6bef69f4f472ce9bb681e3e57b4319ac"
@@ -588,6 +700,13 @@ object-inspect@^1.12.2:
   resolved "https://registry.yarnpkg.com/object-inspect/-/object-inspect-1.12.2.tgz#c0641f26394532f28ab8d796ab954e43c009a8ea"
   integrity sha512-z+cPxW0QGUp0mcqcsgQyLVRDoXFQbXOwBaqyF7VIgI4TWNQsDHrBpUQslRmIfAoYWdYzs6UlKJtB2XJpTaNSpQ==
 
+once@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
+  integrity sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==
+  dependencies:
+    wrappy "1"
+
 onetime@^5.1.0:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/onetime/-/onetime-5.1.2.tgz#d0e96ebb56b07476df1dd9c4806e5237985ca45e"
@@ -907,6 +1026,11 @@ uc.micro@^1.0.1, uc.micro@^1.0.5:
   resolved "https://registry.npmjs.org/uc.micro/-/uc.micro-1.0.6.tgz"
   integrity sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA==
 
+universal-user-agent@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/universal-user-agent/-/universal-user-agent-6.0.0.tgz#3381f8503b251c0d9cd21bc1de939ec9df5480ee"
+  integrity sha512-isyNax3wXoKaulPDZWHQqbmIx1k2tb9fb3GGDBRxCscfYV2Ch7WxPArBsFEG8s/safwXTT7H4QGhaIkTp9447w==
+
 validate-npm-package-license@^3.0.1:
   version "3.0.4"
   resolved "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz"
@@ -940,6 +1064,11 @@ wrap-ansi@^7.0.0:
     string-width "^4.1.0"
     strip-ansi "^6.0.0"
 
+wrappy@1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
+  integrity sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==
+
 y18n@^5.0.5:
   version "5.0.5"
   resolved "https://registry.npmjs.org/y18n/-/y18n-5.0.5.tgz"