diff --git a/opsm_ex/native/opsm_pq_nif/.tool-versions b/opsm_ex/native/opsm_pq_nif/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/opsm_ex/native/opsm_pq_nif/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/opsm_ex/native/pq_crypto/.tool-versions b/opsm_ex/native/pq_crypto/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/opsm_ex/native/pq_crypto/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/opsm_ex/native/quic_transport/.tool-versions b/opsm_ex/native/quic_transport/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/opsm_ex/native/quic_transport/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/opsm_mobile/src-tauri/.tool-versions b/opsm_mobile/src-tauri/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/opsm_mobile/src-tauri/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/cerro-torre/.tool-versions b/services/cerro-torre/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/cerro-torre/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/checky-monkey/.tool-versions b/services/checky-monkey/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/checky-monkey/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/cicd-hyper-a/.tool-versions b/services/cicd-hyper-a/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/cicd-hyper-a/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/claim-forge/.tool-versions b/services/claim-forge/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/claim-forge/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/oikos/.tool-versions b/services/oikos/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/oikos/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/palimpsest-license/.tool-versions b/services/palimpsest-license/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/palimpsest-license/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/selur/.tool-versions b/services/selur/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/selur/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/svalinn/.tool-versions b/services/svalinn/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/svalinn/.tool-versions
@@ -0,0 +1 @@
+rust stable
diff --git a/services/vordr/.tool-versions b/services/vordr/.tool-versions
new file mode 100644
index 00000000..3cd07d4b
--- /dev/null
+++ b/services/vordr/.tool-versions
@@ -0,0 +1 @@
+rust stable