diff --git a/flake.nix b/flake.nix
index fa3d8d9..8d11c1d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -34,15 +34,15 @@
         devenv.shells.default = {
           languages.erlang.enable = true;
 
-          packages = [ kamid ];
-
-          env.ERL_FLAGS = ''
-          -kernel logger_level debug
-          -kernel logger '[
-            {filters, log, [{no_progress, {fun logger_filters:progress/2, stop}}]}
-          ]'
-          -kernel shell_history enabled
-          '';
+          packages = [ kamid pkgs._9pfs ];
+
+          # env.ERL_FLAGS = ''
+          # -kernel logger_level debug
+          # -kernel logger '[
+          #   {filters, log, [{no_progress, {fun logger_filters:progress/2, stop}}]}
+          # ]'
+          # -kernel shell_history enabled
+          # '';
         };
       };
     };
diff --git a/rebar.config b/rebar.config
index 1c06c6e..77bf8d3 100644
--- a/rebar.config
+++ b/rebar.config
@@ -9,10 +9,13 @@
 
 {project_plugins, [
                    rebar3_ex_doc,
-                   rebar3_proper
+                   rebar3_proper,
+                   covertool
                   ]}.
 
 {profiles, [{test, [
                    {deps, [proper]},
                    {erl_opts, [nowarn_export_all]}
                   ]}]}.
+
+{ct_opts, [{create_priv_dir, auto_per_run}]}.
diff --git a/src/e9p_server.erl b/src/e9p_server.erl
index 311fa41..7df0aff 100644
--- a/src/e9p_server.erl
+++ b/src/e9p_server.erl
@@ -8,8 +8,10 @@
 
 -include_lib("kernel/include/logger.hrl").
 
--export([start_link/2,
-         setup_acceptor/3,
+-export([start/2,
+         start_link/2]).
+
+-export([setup_acceptor/3,
          accept_loop/2,
          loop/1
         ]).
@@ -22,6 +24,9 @@
           handler
          }).
 
+start(Port, Handler) ->
+    proc_lib:start(?MODULE, setup_acceptor, [self(), Port, Handler]).
+
 start_link(Port, Handler) ->
     proc_lib:start_link(?MODULE, setup_acceptor, [self(), Port, Handler]).
 
diff --git a/test/e9p_sysfs_SUITE.erl b/test/e9p_sysfs_SUITE.erl
new file mode 100644
index 0000000..9272c76
--- /dev/null
+++ b/test/e9p_sysfs_SUITE.erl
@@ -0,0 +1,146 @@
+% SPDX-FileCopyrightText: 2026 Łukasz Niemier <~@hauleth.dev>
+%
+% SPDX-License-Identifier: Apache-2.0
+
+-module(e9p_sysfs_SUITE).
+
+-compile(export_all).
+
+-include_lib("stdlib/include/assert.hrl").
+-include_lib("common_test/include/ct.hrl").
+
+all() -> [
+          can_list_mount_content,
+          current_process_is_listed,
+          current_process_current_function,
+          system_info_atom_count,
+          applications_list,
+          application_info,
+          application_env
+         ].
+
+init_per_suite(Config) ->
+    PrivDir = ?config(priv_dir, Config),
+    Path = filename:join(PrivDir, "sysfs"),
+    Port = 19999,
+    ok = file:make_dir(Path),
+    {ok, PID} = e9p_server:start(Port, {e9p_sysfs, []}),
+    ct:pal(Path),
+    ct:sleep(1000),
+    Cmd = io_lib:format("9pfs -p ~B localhost ~s",
+                        [Port, Path]),
+    ct:pal(Cmd),
+    _Out = os:cmd(Cmd, #{ exception_on_failure => true }),
+    [{sysfs, PID}, {mount, Path} | Config].
+
+end_per_suite(Config) ->
+    PID = ?config(sysfs, Config),
+    Mount = ?config(mount, Config),
+    os:cmd(["umount ", Mount], #{exception_on_failure => true}),
+    erlang:exit(PID, normal),
+    Config.
+
+can_list_mount_content(Config) ->
+    Mount = ?config(mount, Config),
+    ct:pal(Mount),
+    ?assertEqual([
+                  "applications",
+                  "processes",
+                  "system_info"
+                 ], ls(Mount)).
+
+current_process_is_listed(Config) ->
+    Mount = ?config(mount, Config),
+    Path = filename:join([Mount, "processes", pid_to_list(self())]),
+    ?assertEqual([
+                  "current_function",
+                  "dictionary",
+                  "error_handler",
+                  "garbage_collection",
+                  "group_leader",
+                  "heap_size",
+                  "initial_call",
+                  "links",
+                  "message_queue_len",
+                  "priority",
+                  "reductions",
+                  "stack_size",
+                  "status",
+                  "total_heap_size",
+                  "trap_exit"
+                 ], ls(Path)).
+
+current_process_current_function(Config) ->
+    Mount = ?config(mount, Config),
+    Path = filename:join([
+                          Mount,
+                          "processes",
+                          pid_to_list(self()),
+                          "current_function"
+                         ]),
+    {ok, Bin} = file:read_file(Path),
+    ?assertEqual(~"{gen,do_call,4}", Bin).
+
+system_info_atom_count(Config) ->
+    Mount = ?config(mount, Config),
+    Path = filename:join([
+                          Mount,
+                          "system_info",
+                          "atom_count"
+                         ]),
+    {ok, Bin} = file:read_file(Path),
+    ?assertEqual(erlang:system_info(atom_count), binary_to_integer(Bin)).
+
+applications_list(Config) ->
+    Mount = ?config(mount, Config),
+    Path = filename:join([
+                          Mount,
+                          "applications"
+                         ]),
+    List = ls(Path),
+    Apps = lists:sort(lists:map(fun({AppName, _, _}) -> atom_to_list(AppName) end,
+                                application:loaded_applications())),
+    ?assertEqual(Apps, List).
+
+application_info(Config) ->
+    Mount = ?config(mount, Config),
+    Path = filename:join([
+                          Mount,
+                          "applications",
+                          "kernel"
+                         ]),
+    List = ls(Path),
+    ?assertEqual([
+                  "applications",
+                  "description",
+                  "env",
+                  "id",
+                  "included_applications",
+                  "maxP",
+                  "maxT",
+                  "mod",
+                  "modules",
+                  "optional_applications",
+                  "registered",
+                  "start_phases",
+                  "vsn"
+                 ], List).
+
+application_env(Config) ->
+    Mount = ?config(mount, Config),
+    Path = filename:join([
+                          Mount,
+                          "applications",
+                          "kernel",
+                          "env"
+                         ]),
+    {ok, [Read]} = file:consult(Path),
+    Env = application:get_all_env(kernel),
+    ?assertEqual(Read, Env).
+
+%% Helpers
+
+ls(Path) ->
+    {ok, Files} = file:list_dir(Path),
+    % Remove `.fscache` added on macOS
+    lists:sort(Files) -- [".fscache"].