diff --git a/.github/workflows/test_upload_build_to_test_flight.yml b/.github/workflows/test_upload_build_to_test_flight.yml
index 1606fdab..387c835b 100644
--- a/.github/workflows/test_upload_build_to_test_flight.yml
+++ b/.github/workflows/test_upload_build_to_test_flight.yml
@@ -47,7 +47,7 @@ jobs:
       run: sh make.sh --bundle-id co.nimblehq.ios.templates --bundle-id-staging co.nimblehq.ios.templates.staging --project-name TemplateApp --interface UIKit
 
     - name: Start Setup Script for Template App TestFlight Upload
-      run: sh set_up_test_testflight.sh
+      run: cat Scripts/Swift/SetUpTestTestFlight.swift Scripts/Swift/Extensions/FileManager+Utils.swift | swift -
       env:
         MATCH_REPO: ${{ secrets.MATCH_REPO }}
         API_KEY_ID: ${{ secrets.API_KEY_ID }}
diff --git a/Scripts/Swift/SetUpTestTestFlight.swift b/Scripts/Swift/SetUpTestTestFlight.swift
new file mode 100644
index 00000000..950c4952
--- /dev/null
+++ b/Scripts/Swift/SetUpTestTestFlight.swift
@@ -0,0 +1,16 @@
+let teamIdPlaceholder = "<#teamId#>"
+let apiKeyIdPlaceholder = "<#API_KEY_ID#>"
+let issuerIdPlaceholder = "<#ISSUER_ID#>"
+let matchRepoPlaceholder = "git@github.com:{organization}/{repo}.git"
+
+let envMatchRepo = ProcessInfo.processInfo.environment["MATCH_REPO"] ?? ""
+let envApiKey = ProcessInfo.processInfo.environment["API_KEY_ID"] ?? ""
+let envIssuerId = ProcessInfo.processInfo.environment["ISSUER_ID"] ?? ""
+let envTeamId = ProcessInfo.processInfo.environment["TEAM_ID"] ?? ""
+
+let fileManager = FileManager.default
+
+fileManager.replaceAllOccurrences(of: teamIdPlaceholder, to: envTeamId)
+fileManager.replaceAllOccurrences(of: apiKeyIdPlaceholder, to: envApiKey)
+fileManager.replaceAllOccurrences(of: issuerIdPlaceholder, to: envIssuerId)
+fileManager.replaceAllOccurrences(of: matchRepoPlaceholder, to: envMatchRepo)
diff --git a/set_up_test_testflight.sh b/set_up_test_testflight.sh
deleted file mode 100644
index c1e1290e..00000000
--- a/set_up_test_testflight.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-readonly CONSTANT_TEAM_ID="<#teamId#>"
-readonly CONSTANT_API_KEY_ID="<#API_KEY_ID#>"
-readonly CONSTANT_ISSUER_ID="<#ISSUER_ID#>"
-readonly CONSTANT_MATCH_REPO="git@github.com:{organization}\/{repo}.git"
-
-readonly WORKING_DIR=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
-MATCH_REPO_ESCAPED=$(echo "${MATCH_REPO//\//\\\/}")
-
-LC_ALL=C find $WORKING_DIR -type f -exec sed -i "" "s/$CONSTANT_TEAM_ID/$TEAM_ID/g" {} +
-LC_ALL=C find $WORKING_DIR -type f -exec sed -i "" "s/$CONSTANT_API_KEY_ID/$API_KEY_ID/g" {} +
-LC_ALL=C find $WORKING_DIR -type f -exec sed -i "" "s/$CONSTANT_ISSUER_ID/$ISSUER_ID/g" {} +
-LC_ALL=C find $WORKING_DIR -type f -exec sed -i "" "s/$CONSTANT_MATCH_REPO/$MATCH_REPO_ESCAPED/g" {} +