diff --git a/.github/actions/run-interop-hole-punch-test/action.yml b/.github/actions/run-interop-hole-punch-test/action.yml
index f736474..5ef607b 100644
--- a/.github/actions/run-interop-hole-punch-test/action.yml
+++ b/.github/actions/run-interop-hole-punch-test/action.yml
@@ -86,6 +86,11 @@ runs:
 
     - name: Load cache and build
       working-directory: ${{ steps.find-workdir.outputs.WORK_DIR }}
+      env:
+        AWS_BUCKET: ${{ inputs.s3-cache-bucket }}
+        AWS_REGION: ${{ inputs.aws-region }}
+        AWS_ACCESS_KEY_ID: ${{ inputs.s3-access-key-id }}
+        AWS_SECRET_ACCESS_KEY: ${{ inputs.s3-secret-access-key }}
       run: npm run cache -- load
       shell: bash
 
diff --git a/.github/actions/run-interop-ping-test/action.yml b/.github/actions/run-interop-ping-test/action.yml
index b351f1d..434ed19 100644
--- a/.github/actions/run-interop-ping-test/action.yml
+++ b/.github/actions/run-interop-ping-test/action.yml
@@ -78,6 +78,11 @@ runs:
 
     - name: Load cache and build
       working-directory: ${{ steps.find-workdir.outputs.WORK_DIR }}
+      env:
+        AWS_BUCKET: ${{ inputs.s3-cache-bucket }}
+        AWS_REGION: ${{ inputs.aws-region }}
+        AWS_ACCESS_KEY_ID: ${{ inputs.s3-access-key-id }}
+        AWS_SECRET_ACCESS_KEY: ${{ inputs.s3-secret-access-key }}
       run: npm run cache -- load
       shell: bash
 
diff --git a/.github/actions/run-transport-interop-test/action.yml b/.github/actions/run-transport-interop-test/action.yml
index 09eaaf3..8122f4d 100644
--- a/.github/actions/run-transport-interop-test/action.yml
+++ b/.github/actions/run-transport-interop-test/action.yml
@@ -78,6 +78,11 @@ runs:
 
     - name: Load cache and build
       working-directory: ${{ steps.find-workdir.outputs.WORK_DIR }}
+      env:
+        AWS_BUCKET: ${{ inputs.s3-cache-bucket }}
+        AWS_REGION: ${{ inputs.aws-region }}
+        AWS_ACCESS_KEY_ID: ${{ inputs.s3-access-key-id }}
+        AWS_SECRET_ACCESS_KEY: ${{ inputs.s3-secret-access-key }}
       run: npm run cache -- load
       shell: bash
 
diff --git a/.github/workflows/hole-punch-interop.yml b/.github/workflows/hole-punch-interop.yml
index 723cc23..d306da2 100644
--- a/.github/workflows/hole-punch-interop.yml
+++ b/.github/workflows/hole-punch-interop.yml
@@ -28,7 +28,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/run-interop-hole-punch-test
         with:
-          s3-cache-bucket: libp2p-by-tf-aws-bootstrap
-          s3-access-key-id: ${{ vars.S3_AWS_ACCESS_KEY_ID }}
-          s3-secret-access-key: ${{ secrets.S3_AWS_SECRET_ACCESS_KEY }}
+          s3-cache-bucket: ${{ vars.S3_LIBP2P_BUILD_CACHE_BUCKET_NAME }}
+          s3-access-key-id: ${{ vars.S3_LIBP2P_BUILD_CACHE_AWS_ACCESS_KEY_ID }}
+          s3-secret-access-key: ${{ secrets.S3_LIBP2P_BUILD_CACHE_AWS_SECRET_ACCESS_KEY }}
           worker-count: 16
diff --git a/.github/workflows/transport-interop.yml b/.github/workflows/transport-interop.yml
index 275ebb1..e5fcc6d 100644
--- a/.github/workflows/transport-interop.yml
+++ b/.github/workflows/transport-interop.yml
@@ -18,12 +18,12 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/run-transport-interop-test
         with:
-          s3-cache-bucket: libp2p-by-tf-aws-bootstrap
-          s3-access-key-id: ${{ vars.S3_AWS_ACCESS_KEY_ID }}
-          s3-secret-access-key: ${{ secrets.S3_AWS_SECRET_ACCESS_KEY }}
+          s3-cache-bucket: ${{ vars.S3_LIBP2P_BUILD_CACHE_BUCKET_NAME }}
+          s3-access-key-id: ${{ vars.S3_LIBP2P_BUILD_CACHE_AWS_ACCESS_KEY_ID }}
+          s3-secret-access-key: ${{ secrets.S3_LIBP2P_BUILD_CACHE_AWS_SECRET_ACCESS_KEY }}
           worker-count: 16
   build-without-secrets:
-    runs-on: ubuntu-latest
+    runs-on: ['self-hosted', 'linux', 'x64', '4xlarge'] # https://github.com/pl-strflt/tf-aws-gh-runner/blob/main/runners.tf
     steps:
       - uses: actions/checkout@v3
       # Purposely not using secrets to replicate how forks will behave.
diff --git a/funding.json b/funding.json
new file mode 100644
index 0000000..bcf7fc2
--- /dev/null
+++ b/funding.json
@@ -0,0 +1,5 @@
+{
+  "opRetro": {
+    "projectId": "0x966804cb492e1a4bde5d781a676a44a23d69aa5dd2562fa7a4f95bb606021c8b"
+  }
+}
diff --git a/hole-punch-interop/helpers/cache.ts b/hole-punch-interop/helpers/cache.ts
index a5d07fd..cb54ad4 100755
--- a/hole-punch-interop/helpers/cache.ts
+++ b/hole-punch-interop/helpers/cache.ts
@@ -1,8 +1,9 @@
-const AWS_BUCKET = process.env.AWS_BUCKET || 'libp2p-by-tf-aws-bootstrap';
+const AWS_BUCKET = process.env.AWS_BUCKET;
 const scriptDir = __dirname;
 
 import * as crypto from 'crypto';
 import * as fs from 'fs';
+import * as os from 'os';
 import * as path from 'path';
 import * as child_process from 'child_process';
 import ignore, { Ignore } from 'ignore'
@@ -76,10 +77,14 @@ async function loadCacheOrBuild(dir: string, ig: Ignore) {
     if (mode == Mode.PushCache) {
         console.log("Pushing cache")
         try {
-            const res = await fetch(`https://s3.amazonaws.com/${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz`, {method: "HEAD"})
-            if (res.ok) {
+            if (!AWS_BUCKET) {
+                throw new Error("AWS_BUCKET not set")
+            }
+            try {
+                child_process.execSync(`aws s3 ls s3://${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz`)
                 console.log("Cache already exists")
-            } else {
+            } catch (e) {
+                console.log("Cache doesn't exist", e)
                 // Read image id from image.json
                 const imageID = JSON.parse(fs.readFileSync(path.join(dir, 'image.json')).toString()).imageID;
                 console.log(`Pushing cache for ${dir}: ${imageID}`)
@@ -96,18 +101,17 @@ async function loadCacheOrBuild(dir: string, ig: Ignore) {
         console.log("Loading cache")
         let cacheHit = false
         try {
-            // Check if the cache exists
-            const res = await fetch(`https://s3.amazonaws.com/${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz`, {method: "HEAD"})
-            if (res.ok) {
-                const dockerLoadedMsg = child_process.execSync(`curl https://s3.amazonaws.com/${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz  | docker image load`).toString();
-                const loadedImageId = dockerLoadedMsg.match(/Loaded image( ID)?: (.*)/)[2];
-                if (loadedImageId) {
-                    console.log(`Cache hit for ${loadedImageId}`);
-                    fs.writeFileSync(path.join(dir, 'image.json'), JSON.stringify({imageID: loadedImageId}) + "\n");
-                    cacheHit = true
-                }
-            } else {
-                console.log("Cache not found")
+            if (!AWS_BUCKET) {
+                throw new Error("AWS_BUCKET not set")
+            }
+            const cachePath = fs.mkdtempSync(path.join(os.tmpdir(), 'cache'))
+            const archivePath = path.join(cachePath, 'archive.tar.gz')
+            const dockerLoadedMsg = child_process.execSync(`aws s3 cp s3://${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz ${archivePath} && docker image load -i ${archivePath}`).toString();
+            const loadedImageId = dockerLoadedMsg.match(/Loaded image( ID)?: (.*)/)[2];
+            if (loadedImageId) {
+                console.log(`Cache hit for ${loadedImageId}`);
+                fs.writeFileSync(path.join(dir, 'image.json'), JSON.stringify({imageID: loadedImageId}) + "\n");
+                cacheHit = true
             }
         } catch (e) {
             console.log("Cache not found:", e)
diff --git a/transport-interop/helpers/cache.ts b/transport-interop/helpers/cache.ts
index 697e452..5504a0c 100755
--- a/transport-interop/helpers/cache.ts
+++ b/transport-interop/helpers/cache.ts
@@ -1,8 +1,9 @@
-const AWS_BUCKET = process.env.AWS_BUCKET || 'libp2p-by-tf-aws-bootstrap';
+const AWS_BUCKET = process.env.AWS_BUCKET;
 const scriptDir = __dirname;
 
 import * as crypto from 'crypto';
 import * as fs from 'fs';
+import * as os from 'os';
 import * as path from 'path';
 import * as child_process from 'child_process';
 import ignore, { Ignore } from 'ignore'
@@ -65,10 +66,14 @@ switch (modeStr) {
             if (mode == Mode.PushCache) {
                 console.log("Pushing cache")
                 try {
-                    const res = await fetch(`https://s3.amazonaws.com/${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz`, { method: "HEAD" })
-                    if (res.ok) {
+                    if (!AWS_BUCKET) {
+                        throw new Error("AWS_BUCKET not set")
+                    }
+                    try {
+                        child_process.execSync(`aws s3 ls s3://${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz`)
                         console.log("Cache already exists")
-                    } else {
+                    } catch (e) {
+                        console.log("Cache doesn't exist", e)
                         // Read image id from image.json
                         const imageID = JSON.parse(fs.readFileSync(path.join(implFolder, 'image.json')).toString()).imageID;
                         console.log(`Pushing cache for ${impl}: ${imageID}`)
@@ -85,18 +90,17 @@ switch (modeStr) {
                 console.log("Loading cache")
                 let cacheHit = false
                 try {
-                    // Check if the cache exists
-                    const res = await fetch(`https://s3.amazonaws.com/${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz`, { method: "HEAD" })
-                    if (res.ok) {
-                        const dockerLoadedMsg = child_process.execSync(`curl https://s3.amazonaws.com/${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz  | docker image load`).toString();
-                        const loadedImageId = dockerLoadedMsg.match(/Loaded image( ID)?: (.*)/)[2];
-                        if (loadedImageId) {
-                            console.log(`Cache hit for ${loadedImageId}`);
-                            fs.writeFileSync(path.join(implFolder, 'image.json'), JSON.stringify({ imageID: loadedImageId }) + "\n");
-                            cacheHit = true
-                        }
-                    } else {
-                        console.log("Cache not found")
+                    if (!AWS_BUCKET) {
+                        throw new Error("AWS_BUCKET not set")
+                    }
+                    const cachePath = fs.mkdtempSync(path.join(os.tmpdir(), 'cache'))
+                    const archivePath = path.join(cachePath, 'archive.tar.gz')
+                    const dockerLoadedMsg = child_process.execSync(`aws s3 cp s3://${AWS_BUCKET}/imageCache/${cacheKey}-${arch}.tar.gz ${archivePath} && docker image load -i ${archivePath}`).toString();
+                            const loadedImageId = dockerLoadedMsg.match(/Loaded image( ID)?: (.*)/)[2];
+                    if (loadedImageId) {
+                        console.log(`Cache hit for ${loadedImageId}`);
+                        fs.writeFileSync(path.join(implFolder, 'image.json'), JSON.stringify({ imageID: loadedImageId }) + "\n");
+                        cacheHit = true
                     }
                 } catch (e) {
                     console.log("Cache not found:", e)