diff --git a/src/application.c b/src/application.c
deleted file mode 100644
index ef934d8..0000000
--- a/src/application.c
+++ /dev/null
@@ -1,95 +0,0 @@
-#include "application.h"
-
-extern struct event_loop g_event_loop;
-
-static OBSERVER_CALLBACK(application_notification_handler)
-{
-    if (CFEqual(notification, kAXFocusedWindowChangedNotification)) {
-        uint32_t window_id = ax_window_id(element);
-        if (!window_id) return;
-
-        struct event *event = event_create(&g_event_loop, WINDOW_FOCUSED, (void *)(intptr_t) window_id);
-        event_loop_post(&g_event_loop, event);
-    } else if (CFEqual(notification, kAXTitleChangedNotification)) {
-        uint32_t window_id = ax_window_id(element);
-        if (!window_id) return;
-
-        struct event *event = event_create(&g_event_loop, WINDOW_TITLE_CHANGED, (void *)(intptr_t) window_id);
-        event_loop_post(&g_event_loop, event);
-    }
-}
-
-static void
-application_observe_notification(struct application *application, int notification)
-{
-    AXError result = AXObserverAddNotification(application->observer_ref, application->ref, ax_application_notification[notification], application);
-    if (result == kAXErrorSuccess || result == kAXErrorNotificationAlreadyRegistered) {
-        application->notification |= 1 << notification;
-    } else if (result != kAXErrorNotImplemented) {
-        application->retry = true;
-    }
-}
-
-static void
-application_unobserve_notification(struct application *application, int notification)
-{
-    AXObserverRemoveNotification(application->observer_ref, application->ref, ax_application_notification[notification]);
-    application->notification &= ~(1 << notification);
-}
-
-bool application_observe(struct application *application)
-{
-    if (AXObserverCreate(application->pid, application_notification_handler, &application->observer_ref) == kAXErrorSuccess) {
-        for (int i = 0; i < array_count(ax_application_notification); ++i) {
-            application_observe_notification(application, i);
-        }
-
-        application->is_observing = true;
-        CFRunLoopAddSource(CFRunLoopGetMain(), AXObserverGetRunLoopSource(application->observer_ref), kCFRunLoopDefaultMode);
-    }
-
-    return (application->notification & AX_APPLICATION_ALL) == AX_APPLICATION_ALL;
-}
-
-void application_unobserve(struct application *application)
-{
-    if (application->is_observing) {
-        for (int i = 0; i < array_count(ax_application_notification); ++i) {
-            if (!(application->notification & (1 << i))) continue;
-            application_unobserve_notification(application, i);
-        }
-
-        application->is_observing = false;
-        CFRunLoopSourceInvalidate(AXObserverGetRunLoopSource(application->observer_ref));
-        CFRelease(application->observer_ref);
-    }
-}
-
-uint32_t application_focused_window(struct application *application)
-{
-    CFTypeRef window_ref = NULL;
-    AXUIElementCopyAttributeValue(application->ref, kAXFocusedWindowAttribute, &window_ref);
-    if (!window_ref) return 0;
-
-    uint32_t window_id = ax_window_id(window_ref);
-    CFRelease(window_ref);
-
-    return window_id;
-}
-
-struct application *application_create(struct process *process)
-{
-    struct application *application = malloc(sizeof(struct application));
-    memset(application, 0, sizeof(struct application));
-    application->ref = AXUIElementCreateApplication(process->pid);
-    application->psn = process->psn;
-    application->pid = process->pid;
-    application->name = process->name;
-    return application;
-}
-
-void application_destroy(struct application *application)
-{
-    CFRelease(application->ref);
-    free(application);
-}
diff --git a/src/application.h b/src/application.h
deleted file mode 100644
index 4d90a3d..0000000
--- a/src/application.h
+++ /dev/null
@@ -1,38 +0,0 @@
-#ifndef APPLICATION_H
-#define APPLICATION_H
-
-#define OBSERVER_CALLBACK(name) void name(AXObserverRef observer, AXUIElementRef element, CFStringRef notification, void *context)
-typedef OBSERVER_CALLBACK(observer_callback);
-
-#define AX_APPLICATION_WINDOW_FOCUSED_INDEX       0
-#define AX_APPLICATION_WINDOW_TITLE_CHANGED_INDEX 1
-
-#define AX_APPLICATION_WINDOW_FOCUSED       (1 << AX_APPLICATION_WINDOW_FOCUSED_INDEX)
-#define AX_APPLICATION_WINDOW_TITLE_CHANGED (1 << AX_APPLICATION_WINDOW_TITLE_CHANGED_INDEX)
-#define AX_APPLICATION_ALL                  (AX_APPLICATION_WINDOW_FOCUSED |\
-                                             AX_APPLICATION_WINDOW_TITLE_CHANGED)
-static CFStringRef ax_application_notification[] =
-{
-    [AX_APPLICATION_WINDOW_FOCUSED_INDEX]       = kAXFocusedWindowChangedNotification,
-    [AX_APPLICATION_WINDOW_TITLE_CHANGED_INDEX] = kAXTitleChangedNotification,
-};
-
-struct application
-{
-    AXUIElementRef ref;
-    ProcessSerialNumber psn;
-    uint32_t pid;
-    char *name;
-    AXObserverRef observer_ref;
-    uint8_t notification;
-    bool is_observing;
-    bool retry;
-};
-
-uint32_t application_focused_window(struct application *application);
-bool application_observe(struct application *application);
-void application_unobserve(struct application *application);
-struct application *application_create(struct process *process);
-void application_destroy(struct application *application);
-
-#endif
diff --git a/src/application_manager.c b/src/application_manager.c
deleted file mode 100644
index 5c2c9bd..0000000
--- a/src/application_manager.c
+++ /dev/null
@@ -1,81 +0,0 @@
-#include "application_manager.h"
-
-extern struct process_manager g_process_manager;
-extern struct mouse_state g_mouse_state;
-extern char g_sa_socket_file[MAXLEN];
-
-static TABLE_HASH_FUNC(hash_application)
-{
-    unsigned long result = *(uint32_t *) key;
-    result = (result + 0x7ed55d16) + (result << 12);
-    result = (result ^ 0xc761c23c) ^ (result >> 19);
-    result = (result + 0x165667b1) + (result << 5);
-    result = (result + 0xd3a2646c) ^ (result << 9);
-    result = (result + 0xfd7046c5) + (result << 3);
-    result = (result ^ 0xb55a4f09) ^ (result >> 16);
-    return result;
-}
-
-static TABLE_COMPARE_FUNC(compare_application)
-{
-    return *(uint32_t *) key_a == *(uint32_t *) key_b;
-}
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
-struct application *application_manager_focused_application(struct application_manager *application_manager)
-{
-    ProcessSerialNumber psn = {};
-    _SLPSGetFrontProcess(&psn);
-
-    pid_t pid;
-    GetProcessPID(&psn, &pid);
-
-    return application_manager_find_application(application_manager, pid);
-}
-#pragma clang diagnostic pop
-
-struct application *application_manager_find_application(struct application_manager *application_manager, pid_t pid)
-{
-    return table_find(&application_manager->application, &pid);
-}
-
-void application_manager_remove_application(struct application_manager *application_manager, pid_t pid)
-{
-    table_remove(&application_manager->application, &pid);
-}
-
-void application_manager_add_application(struct application_manager *application_manager, struct application *application)
-{
-    table_add(&application_manager->application, &application->pid, application);
-}
-
-void application_manager_init(struct application_manager *application_manager)
-{
-    application_manager->system_element = AXUIElementCreateSystemWide();
-    AXUIElementSetMessagingTimeout(application_manager->system_element, 1.0);
-
-    table_init(&application_manager->application, 150, hash_application, compare_application);
-}
-
-void application_manager_begin(struct application_manager *application_manager)
-{
-    for (int process_index = 0; process_index < g_process_manager.process.capacity; ++process_index) {
-        struct bucket *bucket = g_process_manager.process.buckets[process_index];
-        while (bucket) {
-            if (bucket->value) {
-                struct process *process = bucket->value;
-                struct application *application = application_create(process);
-
-                if (application_observe(application)) {
-                    application_manager_add_application(application_manager, application);
-                } else {
-                    application_unobserve(application);
-                    application_destroy(application);
-                }
-            }
-
-            bucket = bucket->next;
-        }
-    }
-}
diff --git a/src/application_manager.h b/src/application_manager.h
deleted file mode 100644
index 5a65fac..0000000
--- a/src/application_manager.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#ifndef APPLICATION_MANAGER_H
-#define APPLICATION_MANAGER_H
-
-extern CFTypeRef SLSWindowQueryWindows(int cid, CFArrayRef windows, int count);
-extern CFTypeRef SLSWindowQueryResultCopyWindows(CFTypeRef window_query);
-extern CGError SLSWindowIteratorAdvance(CFTypeRef iterator);
-extern uint32_t SLSWindowIteratorGetParentID(CFTypeRef iterator);
-extern uint32_t SLSWindowIteratorGetWindowID(CFTypeRef iterator);
-extern OSStatus _SLPSGetFrontProcess(ProcessSerialNumber *psn);
-extern CGError SLSGetWindowOwner(int cid, uint32_t wid, int *wcid);
-extern CGError SLSGetConnectionPSN(int cid, ProcessSerialNumber *psn);
-extern CGError SLSConnectionGetPID(int cid, pid_t *pid);
-extern CGError _SLPSSetFrontProcessWithOptions(ProcessSerialNumber *psn, uint32_t wid, uint32_t mode);
-extern CGError SLPSPostEventRecordTo(ProcessSerialNumber *psn, uint8_t *bytes);
-extern OSStatus SLSFindWindowByGeometry(int cid, int zero, int one, int zero_again, CGPoint *screen_point, CGPoint *window_point, uint32_t *wid, int *wcid);
-extern CGError SLSGetCurrentCursorLocation(int cid, CGPoint *point);
-
-#define kCPSAllWindows    0x100
-#define kCPSUserGenerated 0x200
-#define kCPSNoWindows     0x400
-
-struct application_manager
-{
-    AXUIElementRef system_element;
-    struct table application;
-};
-
-struct application *application_manager_focused_application(struct application_manager *application_manager);
-struct application *application_manager_find_application(struct application_manager *application_manager, pid_t pid);
-void application_manager_remove_application(struct application_manager *application_manager, pid_t pid);
-void application_manager_add_application(struct application_manager *application_manager, struct application *application);
-void application_manager_begin(struct application_manager *application_manager);
-void application_manager_init(struct application_manager *application_manager);
-
-#endif
diff --git a/src/display_manager.h b/src/display_manager.h
index 3fb4819..ea1f20c 100644
--- a/src/display_manager.h
+++ b/src/display_manager.h
@@ -1,6 +1,8 @@
 #ifndef DISPLAY_MANAGER_H
 #define DISPLAY_MANAGER_H
 
+extern CFStringRef SLSCopyBestManagedDisplayForRect(int cid, CGRect rect);
+extern CGError SLSGetCurrentCursorLocation(int cid, CGPoint *point);
 extern CFStringRef SLSCopyActiveMenuBarDisplayIdentifier(int cid);
 extern CFStringRef SLSCopyBestManagedDisplayForPoint(int cid, CGPoint point);
 extern bool SLSManagedDisplayIsAnimating(int cid, CFStringRef uuid);
diff --git a/src/event.c b/src/event.c
index 36ba295..146a68d 100644
--- a/src/event.c
+++ b/src/event.c
@@ -4,7 +4,6 @@ extern struct event_loop g_event_loop;
 extern struct process_manager g_process_manager;
 extern struct display_manager g_display_manager;
 extern struct bar_manager g_bar_manager;
-extern struct application_manager g_application_manager;
 extern struct mouse_state g_mouse_state;
 extern struct window_manager g_window_manager;
 extern int g_connection;
@@ -46,73 +45,6 @@ struct event *event_create_p1(struct event_loop *event_loop, enum event_type typ
     return event;
 }
 
-void event_destroy(struct event_loop *event_loop, struct event *event)
-{
-    switch (event->type) {
-    default: break;
-        case APPLICATION_TERMINATED: {
-            process_destroy(event->context);
-        } break;
-    }
-
-#ifdef DEBUG
-    uint64_t count = __sync_sub_and_fetch(&event_loop->count, 1);
-    assert(count >= 0 && count < EVENT_MAX_COUNT);
-#endif
-}
-
-
-static EVENT_CALLBACK(EVENT_HANDLER_APPLICATION_LAUNCHED)
-{
-    struct process *process = context;
-    debug("%s: %s\n", __FUNCTION__, process->name);
-
-    if ((process->terminated) || (kill(process->pid, 0) == -1)) {
-        debug("%s: %s terminated during launch\n", __FUNCTION__, process->name);
-        return EVENT_FAILURE;
-    }
-
-    struct application *application = application_create(process);
-    if (application_observe(application)) {
-        application_manager_add_application(&g_application_manager, application);
-
-        return EVENT_SUCCESS;
-    } else {
-        bool retry_ax = application->retry;
-        application_unobserve(application);
-        application_destroy(application);
-        debug("%s: could not observe %s (%d)\n", __FUNCTION__, process->name, retry_ax);
-
-        if (retry_ax) {
-            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.01f * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
-                struct event *event = event_create(&g_event_loop, APPLICATION_LAUNCHED, process);
-                event_loop_post(&g_event_loop, event);
-            });
-        }
-
-        return EVENT_FAILURE;
-    }
-}
-
-static EVENT_CALLBACK(EVENT_HANDLER_APPLICATION_TERMINATED)
-{
-    struct process *process = context;
-    struct application *application = application_manager_find_application(&g_application_manager, process->pid);
-
-    if (!application) {
-        debug("%s: %s (not observed)\n", __FUNCTION__, process->name);
-        return EVENT_FAILURE;
-    }
-
-    debug("%s: %s\n", __FUNCTION__, process->name);
-    application_manager_remove_application(&g_application_manager, application->pid);
-
-    application_unobserve(application);
-    application_destroy(application);
-
-    return EVENT_SUCCESS;
-}
-
 static EVENT_CALLBACK(EVENT_HANDLER_APPLICATION_FRONT_SWITCHED)
 {
     debug("%s\n", __FUNCTION__);
diff --git a/src/event.h b/src/event.h
index 50aba3f..bbc4f33 100644
--- a/src/event.h
+++ b/src/event.h
@@ -1,11 +1,11 @@
 #ifndef EVENT_LOOP_EVENT_H
 #define EVENT_LOOP_EVENT_H
 
+extern OSStatus SLSFindWindowByGeometry(int cid, int zero, int one, int zero_again, CGPoint *screen_point, CGPoint *window_point, uint32_t *wid, int *wcid);
+
 #define EVENT_CALLBACK(name) uint32_t name(void *context, int param1)
 typedef EVENT_CALLBACK(event_callback);
 
-static EVENT_CALLBACK(EVENT_HANDLER_APPLICATION_LAUNCHED);
-static EVENT_CALLBACK(EVENT_HANDLER_APPLICATION_TERMINATED);
 static EVENT_CALLBACK(EVENT_HANDLER_APPLICATION_FRONT_SWITCHED);
 static EVENT_CALLBACK(EVENT_HANDLER_WINDOW_FOCUSED);
 static EVENT_CALLBACK(EVENT_HANDLER_WINDOW_TITLE_CHANGED);
@@ -34,8 +34,6 @@ static EVENT_CALLBACK(EVENT_HANDLER_MOUSE_UP);
 enum event_type
 {
     EVENT_TYPE_UNKNOWN,
-    APPLICATION_LAUNCHED,
-    APPLICATION_TERMINATED,
     APPLICATION_FRONT_SWITCHED,
     WINDOW_FOCUSED,
     WINDOW_TITLE_CHANGED,
@@ -58,8 +56,6 @@ static const char *event_type_str[] =
 {
     [EVENT_TYPE_UNKNOWN]             = "event_type_unknown",
 
-    [APPLICATION_LAUNCHED]           = "application_launched",
-    [APPLICATION_TERMINATED]         = "application_terminated",
     [APPLICATION_FRONT_SWITCHED]     = "application_front_switched",
     [WINDOW_FOCUSED]                 = "window_focused",
     [WINDOW_TITLE_CHANGED]           = "window_title_changed",
@@ -80,8 +76,6 @@ static const char *event_type_str[] =
 
 static event_callback *event_handler[] =
 {
-    [APPLICATION_LAUNCHED]           = EVENT_HANDLER_APPLICATION_LAUNCHED,
-    [APPLICATION_TERMINATED]         = EVENT_HANDLER_APPLICATION_TERMINATED,
     [APPLICATION_FRONT_SWITCHED]     = EVENT_HANDLER_APPLICATION_FRONT_SWITCHED,
     [WINDOW_FOCUSED]                 = EVENT_HANDLER_WINDOW_FOCUSED,
     [WINDOW_TITLE_CHANGED]           = EVENT_HANDLER_WINDOW_TITLE_CHANGED,
diff --git a/src/event_loop.c b/src/event_loop.c
index 1c10839..293fdf1 100644
--- a/src/event_loop.c
+++ b/src/event_loop.c
@@ -105,7 +105,6 @@ static void *event_loop_run(void *context)
 #endif
             if (event->info) *event->info = (result << 0x1) | EVENT_PROCESSED;
 
-            event_destroy(event_loop, event);
         } else {
             sem_wait(event_loop->semaphore);
         }
diff --git a/src/manifest.m b/src/manifest.m
index 6ef10d3..22da025 100644
--- a/src/manifest.m
+++ b/src/manifest.m
@@ -40,10 +40,7 @@
 #include "workspace.h"
 #include "message.h"
 #include "display.h"
-#include "process_manager.h"
-#include "application.h"
 #include "display_manager.h"
-#include "application_manager.h"
 #include "bar.h"
 #include "graph_data.h"
 #include "bar_item.h"
@@ -56,13 +53,10 @@
 #include "workspace.m"
 #include "message.c"
 #include "display.c"
-#include "process_manager.c"
-#include "application.c"
 #include "display_manager.c"
 #include "bar.c"
 #include "graph_data.c"
 #include "bar_item.c"
 #include "bar_manager.c"
-#include "application_manager.c"
 
 #include "sketchybar.c"
diff --git a/src/process_manager.c b/src/process_manager.c
deleted file mode 100644
index b8fe11b..0000000
--- a/src/process_manager.c
+++ /dev/null
@@ -1,222 +0,0 @@
-#include "process_manager.h"
-
-extern struct event_loop g_event_loop;
-
-static TABLE_HASH_FUNC(hash_psn)
-{
-    unsigned long result = ((ProcessSerialNumber*) key)->lowLongOfPSN;
-    result = (result + 0x7ed55d16) + (result << 12);
-    result = (result ^ 0xc761c23c) ^ (result >> 19);
-    result = (result + 0x165667b1) + (result << 5);
-    result = (result + 0xd3a2646c) ^ (result << 9);
-    result = (result + 0xfd7046c5) + (result << 3);
-    result = (result ^ 0xb55a4f09) ^ (result >> 16);
-    return result;
-}
-
-static TABLE_COMPARE_FUNC(compare_psn)
-{
-    return psn_equals(key_a, key_b);
-}
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
-struct process *process_create(ProcessSerialNumber psn)
-{
-    struct process *process = malloc(sizeof(struct process));
-    memset(process, 0, sizeof(struct process));
-
-    CFStringRef process_name_ref;
-    if (CopyProcessName(&psn, &process_name_ref) == noErr) {
-        process->name = cfstring_copy(process_name_ref);
-        CFRelease(process_name_ref);
-    } else {
-        process->name = string_copy("<unknown>");
-    }
-
-    ProcessInfoRec process_info = {};
-    process_info.processInfoLength = sizeof(ProcessInfoRec);
-    GetProcessInformation(&psn, &process_info);
-
-    process->psn = psn;
-    GetProcessPID(&process->psn, &process->pid);
-    process->background = (process_info.processMode & modeOnlyBackground) != 0;
-    process->xpc = process_info.processType == 'XPC!';
-
-    CFDictionaryRef process_dict = ProcessInformationCopyDictionary(&psn, kProcessDictionaryIncludeAllInformationMask);
-    if (process_dict) {
-        CFBooleanRef process_lsuielement = CFDictionaryGetValue(process_dict, CFSTR("LSUIElement"));
-        if (process_lsuielement) process->lsuielement = CFBooleanGetValue(process_lsuielement);
-        CFBooleanRef process_lsbackground = CFDictionaryGetValue(process_dict, CFSTR("LSBackgroundOnly"));
-        if (process_lsbackground) process->lsbackground = CFBooleanGetValue(process_lsbackground);
-        CFRelease(process_dict);
-    }
-
-    return process;
-}
-
-void process_destroy(struct process *process)
-{
-    free(process->name);
-    free(process);
-}
-
-static bool process_is_observable(struct process *process)
-{
-    if (process->lsbackground) {
-        debug("%s: %s was marked as background only! ignoring..\n", __FUNCTION__, process->name);
-        return false;
-    }
-
-    if (process->lsuielement) {
-        debug("%s: %s was marked as agent! ignoring..\n", __FUNCTION__, process->name);
-        return false;
-    }
-
-    if (process->background) {
-        debug("%s: %s was marked as daemon! ignoring..\n", __FUNCTION__, process->name);
-        return false;
-    }
-
-    if (process->xpc) {
-        debug("%s: %s was marked as xpc service! ignoring..\n", __FUNCTION__, process->name);
-        return false;
-    }
-
-    return true;
-}
-
-static PROCESS_EVENT_HANDLER(process_handler)
-{
-    struct process_manager *pm = (struct process_manager *) user_data;
-
-    ProcessSerialNumber psn;
-    if (GetEventParameter(event, kEventParamProcessID, typeProcessSerialNumber, NULL, sizeof(psn), NULL, &psn) != noErr) {
-        return -1;
-    }
-
-    switch (GetEventKind(event)) {
-    case kEventAppLaunched: {
-        struct process *process = process_create(psn);
-        if (!process) return noErr;
-
-        if (process_is_observable(process)) {
-            struct event *event = event_create(&g_event_loop, APPLICATION_LAUNCHED, process);
-            event_loop_post(&g_event_loop, event);
-            process_manager_add_process(pm, process);
-        } else {
-            process_destroy(process);
-        }
-    } break;
-    case kEventAppTerminated: {
-        struct process *process = process_manager_find_process(pm, &psn);
-        if (!process) return noErr;
-
-        process->terminated = true;
-        process_manager_remove_process(pm, &psn);
-
-        struct event *event = event_create(&g_event_loop, APPLICATION_TERMINATED, process);
-        event_loop_post(&g_event_loop, event);
-    } break;
-    case kEventAppFrontSwitched: {
-        struct process *process = process_manager_find_process(pm, &psn);
-        if (!process) return noErr;
-
-        struct event *event = event_create(&g_event_loop, APPLICATION_FRONT_SWITCHED, process);
-        event_loop_post(&g_event_loop, event);
-    } break;
-    }
-
-    return noErr;
-}
-
-static void
-process_manager_add_running_processes(struct process_manager *pm)
-{
-    ProcessSerialNumber psn = { kNoProcess, kNoProcess };
-    while (GetNextProcess(&psn) == noErr) {
-        struct process *process = process_create(psn);
-        if (!process) continue;
-
-        if (process_is_observable(process)) {
-            if (string_equals(process->name, "Finder")) {
-                debug("%s: %s was found! caching psn..\n", __FUNCTION__, process->name);
-                pm->finder_psn = psn;
-            }
-
-            process_manager_add_process(pm, process);
-        } else {
-            process_destroy(process);
-        }
-    }
-}
-#pragma clang diagnostic pop
-
-struct process *process_manager_find_process(struct process_manager *pm, ProcessSerialNumber *psn)
-{
-    return table_find(&pm->process, psn);
-}
-
-void process_manager_remove_process(struct process_manager *pm, ProcessSerialNumber *psn)
-{
-    table_remove(&pm->process, psn);
-}
-
-void process_manager_add_process(struct process_manager *pm, struct process *process)
-{
-    table_add(&pm->process, &process->psn, process);
-}
-
-#if 0
-bool process_manager_next_process(ProcessSerialNumber *next_psn)
-{
-    CFArrayRef applications =_LSCopyApplicationArrayInFrontToBackOrder(0xFFFFFFFE, 1);
-    if (!applications) return false;
-
-    bool found_front_psn = false;
-    ProcessSerialNumber front_psn;
-    _SLPSGetFrontProcess(&front_psn);
-
-    for (int i = 0; i < CFArrayGetCount(applications); ++i) {
-        CFTypeRef asn = CFArrayGetValueAtIndex(applications, i);
-        assert(CFGetTypeID(asn) == _LSASNGetTypeID());
-        _LSASNExtractHighAndLowParts(asn, &next_psn->highLongOfPSN, &next_psn->lowLongOfPSN);
-        if (found_front_psn) break;
-        found_front_psn = psn_equals(&front_psn, next_psn);
-    }
-
-    CFRelease(applications);
-    return true;
-}
-#endif
-
-void process_manager_init(struct process_manager *pm)
-{
-    pm->target = GetApplicationEventTarget();
-    pm->handler = NewEventHandlerUPP(process_handler);
-    pm->type[0].eventClass = kEventClassApplication;
-    pm->type[0].eventKind  = kEventAppLaunched;
-    pm->type[1].eventClass = kEventClassApplication;
-    pm->type[1].eventKind  = kEventAppTerminated;
-    pm->type[2].eventClass = kEventClassApplication;
-    pm->type[2].eventKind  = kEventAppFrontSwitched;
-    table_init(&pm->process, 125, hash_psn, compare_psn);
-    process_manager_add_running_processes(pm);
-}
-
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
-bool process_manager_begin(struct process_manager *pm)
-{
-    ProcessSerialNumber front_psn;
-    _SLPSGetFrontProcess(&front_psn);
-    GetProcessPID(&front_psn, &g_process_manager.front_pid);
-    g_process_manager.last_front_pid = g_process_manager.front_pid;
-    return InstallEventHandler(pm->target, pm->handler, 3, pm->type, pm, &pm->ref) == noErr;
-}
-#pragma clang diagnostic pop
-
-bool process_manager_end(struct process_manager *pm)
-{
-    return RemoveEventHandler(pm->ref) == noErr;
-}
diff --git a/src/process_manager.h b/src/process_manager.h
deleted file mode 100644
index 17e3e1b..0000000
--- a/src/process_manager.h
+++ /dev/null
@@ -1,51 +0,0 @@
-#ifndef PROCESS_MANAGER_H
-#define PROCESS_MANAGER_H
-
-extern OSStatus _SLPSGetFrontProcess(ProcessSerialNumber *psn);
-extern CFStringRef SLSCopyBestManagedDisplayForRect(int cid, CGRect rect);
-extern CGError SLSGetCurrentCursorLocation(int cid, CGPoint *point);
-
-#if 0
-extern CFArrayRef _LSCopyApplicationArrayInFrontToBackOrder(int negative_one, int one);
-extern void _LSASNExtractHighAndLowParts(const void *asn, uint32_t *high, uint32_t *low);
-extern CFTypeID _LSASNGetTypeID(void);
-#endif
-
-#define PROCESS_EVENT_HANDLER(name) OSStatus name(EventHandlerCallRef ref, EventRef event, void *user_data)
-typedef PROCESS_EVENT_HANDLER(process_event_handler);
-
-struct process
-{
-    ProcessSerialNumber psn;
-    pid_t pid;
-    char *name;
-    bool background;
-    bool lsuielement;
-    bool lsbackground;
-    bool xpc;
-    bool volatile terminated;
-};
-
-struct process_manager
-{
-    struct table process;
-    EventTargetRef target;
-    EventHandlerUPP handler;
-    EventTypeSpec type[3];
-    EventHandlerRef ref;
-    pid_t front_pid;
-    pid_t last_front_pid;
-    ProcessSerialNumber finder_psn;
-};
-
-void process_destroy(struct process *process);
-struct process *process_create(ProcessSerialNumber psn);
-struct process *process_manager_find_process(struct process_manager *pm, ProcessSerialNumber *psn);
-void process_manager_remove_process(struct process_manager *pm, ProcessSerialNumber *psn);
-void process_manager_add_process(struct process_manager *pm, struct process *process);
-// bool process_manager_next_process(ProcessSerialNumber *next_psn);
-void process_manager_init(struct process_manager *pm);
-bool process_manager_begin(struct process_manager *pm);
-bool process_manager_end(struct process_manager *pm);
-
-#endif
diff --git a/src/sketchybar.c b/src/sketchybar.c
index 0abad8c..377b3d2 100644
--- a/src/sketchybar.c
+++ b/src/sketchybar.c
@@ -23,9 +23,7 @@ extern CGError SLSRegisterConnectionNotifyProc(int cid, connection_callback *han
 
 struct event_loop g_event_loop;
 void *g_workspace_context;
-struct process_manager g_process_manager;
 struct display_manager g_display_manager;
-struct application_manager g_application_manager;
 struct daemon g_daemon;
 struct bar_manager g_bar_manager;
 struct mouse_state g_mouse_state;
@@ -248,16 +246,12 @@ int main(int argc, char **argv)
         error("sketchybar: could not initialize event_loop! abort..\n");
     }
 
-    process_manager_init(&g_process_manager);
     workspace_event_handler_init(&g_workspace_context);
-    application_manager_init(&g_application_manager);
     bar_manager_init(&g_bar_manager);
 
     event_loop_begin(&g_event_loop);
     display_manager_begin(&g_display_manager);
-    process_manager_begin(&g_process_manager);
     workspace_event_handler_begin(&g_workspace_context);
-    application_manager_begin(&g_application_manager);
     bar_manager_begin(&g_bar_manager);
     event_tap_begin(&g_event_tap, EVENT_MASK_MOUSE, mouse_handler);
     SLSRegisterConnectionNotifyProc(g_connection, connection_handler, 1204, NULL);