diff --git a/libmamba/include/mamba/core/channel.hpp b/libmamba/include/mamba/core/channel.hpp
index 3bff04e32d..a39d6559a5 100644
--- a/libmamba/include/mamba/core/channel.hpp
+++ b/libmamba/include/mamba/core/channel.hpp
@@ -18,7 +18,8 @@
 
 namespace mamba
 {
-    std::vector<std::string> get_known_platforms();
+    const std::vector<std::string>& get_known_platforms();
+
     // Note: Channels can only be created using ChannelContext.
     class Channel
     {
diff --git a/libmamba/src/api/configuration.cpp b/libmamba/src/api/configuration.cpp
index a3b34337d1..a4aff994b6 100644
--- a/libmamba/src/api/configuration.cpp
+++ b/libmamba/src/api/configuration.cpp
@@ -1137,6 +1137,14 @@ namespace mamba
                    .set_post_merge_hook(detail::envs_dirs_hook)
                    .description("Possible locations of named environments"));
 
+        insert(Configurable("register_envs", &ctx.register_envs)
+                   .group("Basic")
+                   .set_rc_configurable()
+                   .set_env_var_names({ "CONDA_REGISTER_ENVS" })
+                   .needs({ "root_prefix" })
+                   .description("whether to add the newly created prefix to ~/.conda/environments.txt"
+                   ));
+
         insert(Configurable("pkgs_dirs", &ctx.pkgs_dirs)
                    .group("Basic")
                    .set_rc_configurable()
diff --git a/libmamba/src/core/channel.cpp b/libmamba/src/core/channel.cpp
index 66cef72e3e..7a935facf5 100644
--- a/libmamba/src/core/channel.cpp
+++ b/libmamba/src/core/channel.cpp
@@ -255,7 +255,7 @@ namespace mamba
         }
     }  // namespace
 
-    std::vector<std::string> get_known_platforms()
+    const std::vector<std::string>& get_known_platforms()
     {
         return KNOWN_PLATFORMS;
     }
diff --git a/libmambapy/libmambapy/__init__.pyi b/libmambapy/libmambapy/__init__.pyi
index d232db1631..fea1894210 100644
--- a/libmambapy/libmambapy/__init__.pyi
+++ b/libmambapy/libmambapy/__init__.pyi
@@ -729,6 +729,14 @@ class Context:
     def quiet(self, arg1: bool) -> None:
         pass
     @property
+    def register_envs(self) -> bool:
+        """
+        :type: bool
+        """
+    @register_envs.setter
+    def register_envs(self, arg0: bool) -> None:
+        pass
+    @property
     def remote_fetch_params(self) -> Context.RemoteFetchParams:
         """
         :type: Context.RemoteFetchParams
diff --git a/libmambapy/src/main.cpp b/libmambapy/src/main.cpp
index e563a4dc08..887c56d262 100644
--- a/libmambapy/src/main.cpp
+++ b/libmambapy/src/main.cpp
@@ -534,6 +534,7 @@ PYBIND11_MODULE(bindings, m)
         .def_readwrite("always_yes", &Context::always_yes)
         .def_readwrite("dry_run", &Context::dry_run)
         .def_readwrite("download_only", &Context::download_only)
+        .def_readwrite("register_envs", &Context::register_envs)
         .def_readwrite("add_pip_as_python_dependency", &Context::add_pip_as_python_dependency)
         .def_readwrite("envs_dirs", &Context::envs_dirs)
         .def_readwrite("pkgs_dirs", &Context::pkgs_dirs)
diff --git a/micromamba/src/common_options.cpp b/micromamba/src/common_options.cpp
index eb4c3ca57b..418d284714 100644
--- a/micromamba/src/common_options.cpp
+++ b/micromamba/src/common_options.cpp
@@ -452,3 +452,16 @@ init_install_options(CLI::App* subcom, Configuration& config)
         "Categories of package to install from environment lockfile"
     );
 }
+
+void
+init_create_options(CLI::App* subcom, Configuration& config)
+{
+    init_install_options(subcom, config);
+
+    auto& register_envs = config.at("register_envs");
+    subcom->add_flag(
+        "--register-envs",
+        register_envs.get_cli_config<bool>(),
+        register_envs.description()
+    );
+}
diff --git a/micromamba/src/common_options.hpp b/micromamba/src/common_options.hpp
index 40c4a3f4f2..af65289e82 100644
--- a/micromamba/src/common_options.hpp
+++ b/micromamba/src/common_options.hpp
@@ -25,6 +25,9 @@ init_prefix_options(CLI::App* subcom, mamba::Configuration& config);
 void
 init_install_options(CLI::App* subcom, mamba::Configuration& config);
 
+void
+init_create_options(CLI::App* subcom, mamba::Configuration& config);
+
 void
 init_network_options(CLI::App* subcom, mamba::Configuration& config);
 
diff --git a/micromamba/src/create.cpp b/micromamba/src/create.cpp
index c057e1b7c5..d316dca80a 100644
--- a/micromamba/src/create.cpp
+++ b/micromamba/src/create.cpp
@@ -14,7 +14,7 @@ using namespace mamba;  // NOLINT(build/namespaces)
 void
 set_create_command(CLI::App* subcom, Configuration& config)
 {
-    init_install_options(subcom, config);
+    init_create_options(subcom, config);
 
     subcom->callback([&] { return mamba::create(config); });
 }