my config

package component:greeter;

interface greeter {
    hello-user: func(user: string);
}

world example {
    import wasi:cli/environment@0.2.3;
    import wasi:sockets/network@0.2.3;
    import wasi:sockets/instance-network@0.2.3;
    import wasi:sockets/tcp@0.2.3;
    import wasi:sockets/tcp-create-socket@0.2.3;

    export greeter;
}

export const greeter = {
  helloUser(user) {
    console.log("Hello", user);
  }
}

componentize-js --aot --wit wit --world-name example --runtime-args "--enable-script-debugging" -o out.wasm index.js

wasmtime run -S cli,tcp,http --dir /home/tandr/workspace/sm-debug/::/ --invoke 'hello-user("Gordon Shumway")' out.wasm --env STARLINGMONKEY_CONFIG="--verbose -d" --env DEBUGGER_PORT=64373

diff --git a/embedding/embedding.cpp b/embedding/embedding.cpp
index 585f3ed..60ba219 100644
--- a/embedding/embedding.cpp
+++ b/embedding/embedding.cpp
@@ -1,4 +1,5 @@
 #include "embedding.h"
+#include "debugger.h"
 #include "builtins/web/performance.h"

 namespace builtins::web::console {
@@ -147,6 +148,7 @@ cabi_realloc(void *ptr, size_t orig_size, size_t org_align, size_t new_size) {
 __attribute__((export_name("call"))) uint32_t call(uint32_t fn_idx,
                                                    void *argptr) {
   if (Runtime.first_call) {
+    content_debugger::maybe_init_debugger(Runtime.engine, true);
     js::ResetMathRandomSeed(Runtime.cx);
     Runtime.first_call = false;
     if (Runtime.clocks) {

diff --git a/host-apis/wasi-0.2.0/host_api.cpp b/host-apis/wasi-0.2.0/host_api.cpp
index e87bd9e..e33ec36 100644
--- a/host-apis/wasi-0.2.0/host_api.cpp
+++ b/host-apis/wasi-0.2.0/host_api.cpp
@@ -2,8 +2,6 @@
 #include "bindings/bindings.h"
 #include "handles.h"

-#include <wasi/libc-environ.h>
-
 static std::optional<wasi_clocks_monotonic_clock_own_pollable_t> immediately_ready;

 size_t poll_handles(vector<WASIHandle<host_api::Pollable>::Borrowed> handles) {
@@ -1032,9 +1030,6 @@ void exports_wasi_http_incoming_handler(exports_wasi_http_incoming_request reque
   // that it properly initializes the runtime and installs a request handler.
   if (!REQUEST_HANDLER) {
     init_from_environment();
-  } else {
-    // Resuming a wizer snapshot, so we have to ensure that the environment is reset.
-    __wasilibc_initialize_environ();
   }
   MOZ_ASSERT(REQUEST_HANDLER);

diff --git a/runtime/debugger.cpp b/runtime/debugger.cpp
index e81dcaa..dececee 100644
--- a/runtime/debugger.cpp
+++ b/runtime/debugger.cpp
@@ -4,6 +4,8 @@
 #include <encode.h>
 #include <js/CompilationAndEvaluation.h>
 #include <js/SourceText.h>
+#include <wasi/libc-environ.h>
+
 #include <string_view>

 mozilla::Maybe<std::string> main_path;
@@ -278,6 +280,10 @@ void content_debugger::maybe_init_debugger(api::Engine * engine, bool content_al
     return;
   }
   debugger_initialized = true;
+
+  // Resuming a wizer snapshot, so we have to ensure that the environment is reset.
+  __wasilibc_initialize_environ();
+
   auto port_str = std::getenv("DEBUGGER_PORT");
   if (port_str) {
     uint32_t port = std::stoi(port_str);