diff --git a/examples/fuzz_html.nim b/examples/fuzz_html.nim
index add605c..1139932 100644
--- a/examples/fuzz_html.nim
+++ b/examples/fuzz_html.nim
@@ -35,26 +35,27 @@ proc `$`(n: HtmlNode): string =
   result = newStringOfCap(1000)
   toString n, result
 
-import drchaos
+when isMainModule:
+  import drchaos
 
-proc default(_: typedesc[HtmlNode]): HtmlNode =
-  HtmlNode(tag: text, s: "")
+  proc default(_: typedesc[HtmlNode]): HtmlNode =
+    HtmlNode(tag: text, s: "")
 
-func `==`(a, b: HtmlNode): bool =
-  if a.isNil:
-    if b.isNil: return true
-    return false
-  elif b.isNil or a.tag != b.tag:
-    return false
-  else:
-    case a.tag
-    of text: return a.s == b.s
-    else: return a.kids == b.kids
+  func `==`(a, b: HtmlNode): bool =
+    if a.isNil:
+      if b.isNil: return true
+      return false
+    elif b.isNil or a.tag != b.tag:
+      return false
+    else:
+      case a.tag
+      of text: return a.s == b.s
+      else: return a.kids == b.kids
 
-func fuzzTarget(x: HtmlNode) =
-  let data = HtmlNode(tag: head, kids: @[
-    HtmlNode(tag: text, s: "Hello World!"),
-  ])
-  doAssert $x != $data
+  func fuzzTarget(x: HtmlNode) =
+    let data = HtmlNode(tag: head, kids: @[
+      HtmlNode(tag: text, s: "Hello World!"),
+    ])
+    doAssert $x != $data
 
-defaultMutator(fuzzTarget)
+  defaultMutator(fuzzTarget)
diff --git a/examples/fuzz_matrix.nim b/examples/fuzz_matrix.nim
index 23c38e3..df856bc 100644
--- a/examples/fuzz_matrix.nim
+++ b/examples/fuzz_matrix.nim
@@ -44,12 +44,15 @@ proc eye*(N: static[int], A: typedesc[float32], order: OrderType = colMajor): Ma
   for i in 0 ..< N:
     result.data[i + N * i] = 1'f32
 
-import drchaos
+when isMainModule:
+  import drchaos
 
-proc default[M, N: static[int]](_: typedesc[Matrix32[M, N]]): Matrix32[M, N] =
-  zeros(M, N, float32)
+  {.experimental: "strictFuncs".}
 
-func fuzzTarget(x: Matrix32[2, 2]) =
-  doAssert x != eye(2, float32)
+  proc default[M, N: static[int]](_: typedesc[Matrix32[M, N]]): Matrix32[M, N] =
+    zeros(M, N, float32)
 
-defaultMutator(fuzzTarget)
+  func fuzzTarget(x: Matrix32[2, 2]) =
+    doAssert x != eye(2, float32)
+
+  defaultMutator(fuzzTarget)
diff --git a/examples/nim.cfg b/examples/nim.cfg
index 7c705d5..34b541a 100644
--- a/examples/nim.cfg
+++ b/examples/nim.cfg
@@ -8,6 +8,6 @@
 @end
 --passC: "-fsanitize=address,undefined"
 --passL: "-fsanitize=address,undefined"
-#--define: release
+#--define: danger
 --debugger: native
 --path: "../"