diff --git a/.envrc b/.envrc
index 384c50d8a..ad5949970 100644
--- a/.envrc
+++ b/.envrc
@@ -9,6 +9,17 @@ export HOSTNAME="${HOSTNAME:-${HOST:-$(hostname)}}"
 # for build and testing purposes.
 export VIRTUAL_ENV="${HOME}/.local/share/virtualenvs/vsa"
 
+# determine which TEST_LIGHTSPEED_URL value to use, as on macos we need a
+# different value than on linux due to how ipv4/ipv6 hostnames are resolved.
+
+if [[ "$OSTYPE" == "darwin"* ]]; then
+    TEST_LIGHTSPEED_URL='http://127.0.0.1:3000'
+else
+    TEST_LIGHTSPEED_URL='http://ip6-localhost:3000'
+fi
+export TEST_LIGHTSPEED_URL
+
+
 # Activate virtualenv (creates it if needed)
 layout python
 source_up 2>/dev/null || true
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index b01b9bc77..4889ba695 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -237,7 +237,7 @@ jobs:
           #
           # Once the axios library starts supporting URLs that contain ipv6 addresses, we will be able to use
           # http://[::1]:3000 both on Linux and MacOS to get rid of the following conditional statement.
-          TEST_LIGHTSPEED_URL: "${{ contains(matrix.name, 'macos') && 'http://127.0.0.1:3000' || 'http://ip6-localhost:3000' }}"
+          # TEST_LIGHTSPEED_URL: "${{ contains(matrix.name, 'macos') && 'http://127.0.0.1:3000' || 'http://ip6-localhost:3000' }}"
 
           # Set environment variables using matrix properties.
           SKIP_PODMAN: "${{ matrix.env.SKIP_PODMAN || '0' }}"
diff --git a/package.json b/package.json
index aee4a9d84..ef431c1d4 100644
--- a/package.json
+++ b/package.json
@@ -839,7 +839,7 @@
     "_test-ui": "extest get-vscode -c ${CODE_VERSION} -s out/test-resources && extest get-chromedriver -c ${CODE_VERSION} -s out/test-resources && extest install-vsix -f ansible-*.vsix -e out/ext -s out/test-resources && extest install-from-marketplace redhat.vscode-yaml ms-python.python -e out/ext -s out/test-resources && extest run-tests -s out/test-resources -e out/ext --code_settings test/testFixtures/settings.json out/client/test/ui-test/allTestsSuite.js",
     "test-ui-current": "CODE_VERSION='max' yarn _test-ui",
     "test-ui-oldest": "CODE_VERSION='min' yarn _test-ui",
-    "test-ui-with-mock-lightspeed-server": "TEST_LIGHTSPEED_URL='http://127.0.0.1:3000' ./tools/run-ui-test-with-mock-lightspeed-server.sh",
+    "test-ui-with-mock-lightspeed-server": "./tools/run-ui-test-with-mock-lightspeed-server.sh",
     "vscode-prepublish": "yarn run webpack",
     "watch": "tsc -b -w",
     "watch-server": "tsc -p ../ansible-language-server --outDir out/server -w",
@@ -853,10 +853,10 @@
     "coverage-e2e": "COVERAGE=1 yarn run test-e2e",
     "test-e2e-withserver": "yarn run test-compile-withserver && node ./out/client/test/testRunner",
     "coverage-e2e-withserver": "COVERAGE=1 yarn run test-e2e-withserver",
-    "mock-lightspeed-server": "DEBUG='express:*' node ./out/client/test/mockLightspeedServer/server.js",
+    "mock-lightspeed-server": "node ./out/client/test/mockLightspeedServer/server.js",
     "kill-mock-lightspeed-server": "pkill -f mockLightspeedServer/server.js",
     "_coverage-all": "./tools/coverage-all.sh",
-    "coverage-all": "TEST_LIGHTSPEED_URL='http://127.0.0.1:3000' yarn _coverage-all",
+    "coverage-all": "yarn _coverage-all",
     "als-compile": "yarn workspace @ansible/ansible-language-server compile"
   },
   "version": "24.4.0",
diff --git a/test/helper.ts b/test/helper.ts
index 43d8881a2..a0b316c8d 100644
--- a/test/helper.ts
+++ b/test/helper.ts
@@ -157,13 +157,6 @@ export async function canRunLightspeedTests(): Promise<boolean> {
     return false;
   }
 
-  if (!process.env.TEST_LIGHTSPEED_URL) {
-    console.warn(
-      "Skipping lightspeed tests because TEST_LIGHTSPEED_URL variable is not set.",
-    );
-    return false;
-  }
-
   // next, check if the access token is valid or not
   const lightspeedBaseURL: string | undefined = vscode.workspace
     .getConfiguration("ansible")
diff --git a/test/mockLightspeedServer/server.ts b/test/mockLightspeedServer/server.ts
index 4a6290206..94869febd 100644
--- a/test/mockLightspeedServer/server.ts
+++ b/test/mockLightspeedServer/server.ts
@@ -12,9 +12,12 @@ import { openUrl } from "./openUrl";
 const API_VERSION = "v0";
 const API_ROOT = `/api/${API_VERSION}`;
 
-let url = new URL("http://127.0.0.1:3000");
-// Do not try to use envvars on macos -- ref: https://github.com/microsoft/vscode/issues/204005
-if (process.platform !== "darwin" && process.env.TEST_LIGHTSPEED_URL) {
+let url = new URL(
+  process.platform === "darwin"
+    ? "http://127.0.0.1:3000"
+    : "http://ip6-localhost:3000",
+);
+if (process.env.TEST_LIGHTSPEED_URL) {
   url = new URL(process.env.TEST_LIGHTSPEED_URL);
 }
 
diff --git a/tools/coverage-all.sh b/tools/coverage-all.sh
index a977c667d..d0a337208 100755
--- a/tools/coverage-all.sh
+++ b/tools/coverage-all.sh
@@ -1,13 +1,7 @@
 #!/bin/bash
 
-# If TEST_LIGHTSPEED_URL is not defined, set a URL with the ipv6 callback hostname,
-# which is available in the GitHub Actions Linux environment.
-if [[ -z "${TEST_LIGHTSPEED_URL}" ]]; then
-  TEST_LIGHTSPEED_URL="http://ip6-localhost:3000"
-fi
-
 # Start the mock Lightspeed server and run e2e tests with code coverage enabled.
 npx start-server-and-test \
-    "TEST_LIGHTSPEED_URL=${TEST_LIGHTSPEED_URL} yarn mock-lightspeed-server" \
+    "yarn mock-lightspeed-server" \
     "${TEST_LIGHTSPEED_URL}" \
-    "TEST_LIGHTSPEED_ACCESS_TOKEN=dummy TEST_LIGHTSPEED_URL=${TEST_LIGHTSPEED_URL} yarn coverage-e2e"
+    "TEST_LIGHTSPEED_ACCESS_TOKEN=dummy yarn coverage-e2e"
diff --git a/tools/run-ui-test-with-mock-lightspeed-server.sh b/tools/run-ui-test-with-mock-lightspeed-server.sh
index d495d5d7d..324e9ce6a 100755
--- a/tools/run-ui-test-with-mock-lightspeed-server.sh
+++ b/tools/run-ui-test-with-mock-lightspeed-server.sh
@@ -1,13 +1,7 @@
 #!/bin/bash
 
-# If TEST_LIGHTSPEED_URL is not defined, set a URL with the ipv6 callback hostname,
-# which is available in the GitHub Actions Linux environment.
-if [[ -z "${TEST_LIGHTSPEED_URL}" ]]; then
-  TEST_LIGHTSPEED_URL="http://ip6-localhost:3000"
-fi
-
 # Start the mock Lightspeed server and run UI tests with the new VS Code
 npx start-server-and-test \
-    "TEST_LIGHTSPEED_URL=${TEST_LIGHTSPEED_URL} yarn mock-lightspeed-server" \
+    "yarn mock-lightspeed-server" \
     "${TEST_LIGHTSPEED_URL}" \
-    "TEST_LIGHTSPEED_ACCESS_TOKEN=dummy TEST_LIGHTSPEED_URL=${TEST_LIGHTSPEED_URL} yarn test-ui-current"
+    "TEST_LIGHTSPEED_ACCESS_TOKEN=dummy yarn test-ui-current"