diff --git a/src/backup/todo.txt b/src/backup/todo.txt
index 115dac2..200f520 100644
--- a/src/backup/todo.txt
+++ b/src/backup/todo.txt
@@ -1,9 +1,7 @@
 - What precise workflow do I need for me to be viable to use this?
 - From a user (novice) point of view, how does it look like?
 
-- Close all (ask to save)
-    - Close buffer instead of window (ask to save)
-- Open all in the folder and ctrl + p like in VSCode (without special buffers)
+- ctrl + p like in VSCode (without special buffers)
 - Guide on the first page for new users with links to configs, tutorials
 
 - Window, View, Buffer + flags design (or is completely new kind based approach needed for Windows/Views?)
diff --git a/src/basic/basic_os.cpp b/src/basic/basic_os.cpp
index 472b523..2b2d56e 100644
--- a/src/basic/basic_os.cpp
+++ b/src/basic/basic_os.cpp
@@ -1147,4 +1147,4 @@ API void CloseStdin(Process *process) {
 
 API double GetTimeSeconds() {
     return GetTimeMicros() / 1000000.0;
-}
\ No newline at end of file
+}
diff --git a/src/text_editor/buffer.cpp b/src/text_editor/buffer.cpp
index 5752cc2..28a12ea 100644
--- a/src/text_editor/buffer.cpp
+++ b/src/text_editor/buffer.cpp
@@ -1436,6 +1436,18 @@ bool IsNull(Buffer *buffer) {
     return buffer->id.id == 0;
 }
 
+void Close(BufferID id) {
+    Buffer *buffer = GetBuffer(id, NULL);
+    if (buffer) {
+        if (buffer->id.id == 0) {
+            return;
+        }
+
+        buffer->close = true;
+        RunGCThisFrame = true;
+    }
+}
+
 Buffer *CreateBuffer(Allocator allocator, String name, Int size) {
     Buffer *result = AllocBuffer(allocator, name, size);
     Add(&Buffers, result);
@@ -1467,15 +1479,13 @@ void InitBuffers() {
     Assert(null_buffer->id == NullBufferID && null_view->id == NullViewID);
     TraceBuffer = CreateBuffer(sys_allocator, GetUniqueBufferName(WorkDir, "trace"));
     TraceBuffer->special = true;
-    TraceView = CreateView(TraceBuffer->id);
+    TraceBuffer->no_history = true;
     GCInfoBuffer = CreateBuffer(sys_allocator, GetUniqueBufferName(WorkDir, "gc"));
     GCInfoBuffer->special = true;
     GCInfoBuffer->no_history = true;
     EventBuffer = CreateBuffer(sys_allocator, GetUniqueBufferName(WorkDir, "events"));
     EventBuffer->no_history = true;
     EventBuffer->special = true;
-    ScratchBuffer = BufferOpenFile(GetUniqueBufferName(WorkDir, "scratch"));
-    ScratchBuffer->special = true;
 }
 
 Int ConvertUTF8ToUTF16UnixLine(String string, char16_t *buffer, Int buffer_cap) {
@@ -1558,7 +1568,7 @@ bool BufferIsReferenced(BufferID buffer_id) {
         return true;
     }
 
-    if (FindView(buffer_id)) {
+    if (FindView(buffer_id, NULL)) {
         return true;
     }
 
diff --git a/src/text_editor/buffer.h b/src/text_editor/buffer.h
index b62de58..4736a26 100644
--- a/src/text_editor/buffer.h
+++ b/src/text_editor/buffer.h
@@ -40,7 +40,7 @@ struct Buffer {
         unsigned changed_on_disk : 1;
         unsigned garbage : 1;
         unsigned dont_try_to_save_in_bulk_ops : 1;
-        unsigned kill : 1;
+        unsigned close : 1;
         unsigned special : 1;
     };
 };
diff --git a/src/text_editor/commands.cpp b/src/text_editor/commands.cpp
index 0cb5d65..83ce1ce 100644
--- a/src/text_editor/commands.cpp
+++ b/src/text_editor/commands.cpp
@@ -248,7 +248,7 @@ void ReportWarningf(const char *fmt, ...) {
 void ReportDebugf(const char *fmt, ...) {
     Scratch scratch;
     STRING_FORMAT(scratch, fmt, string);
-    Appendf(TraceView, "%S\n", string);
+    RawAppendf(TraceBuffer, "%S\n", string);
 }
 
 void MoveCursorByPageSize(Window *window, int direction, bool shift = false) {
@@ -427,29 +427,6 @@ void NewDir(Window *window, String name = "") {
     Open(name);
 }
 
-String CodeEndings[] = { ".c", ".cpp", ".h", ".hpp", ".py", ".lua", ".cxx", ".hxx", };
-
-void ListFilesRecursive(Buffer *buffer, String dir) {
-    Scratch scratch(buffer->line_starts.allocator);
-    for (FileIter it = IterateFiles(scratch, dir); IsValid(it); Advance(&it)) {
-        if (it.filename == ".git") {
-            continue;
-        }
-        if (it.is_directory) {
-            ListFilesRecursive(buffer, it.absolute_path);
-        } else {
-            bool match = false;
-            ForItem (ending, CodeEndings) {
-                if (EndsWith(it.absolute_path, ending)) {
-                    match = true;
-                    break;
-                }
-            }
-            if (match) RawAppendf(buffer, "%-80S || %S\n", it.filename, it.absolute_path);
-        }
-    }
-}
-
 View *ExecHidden(String buffer_name, String cmd, String working_dir) {
     View *view = OpenBufferView(buffer_name);
     Buffer *buffer = GetBuffer(view->active_buffer);
@@ -668,14 +645,66 @@ void Command_SetWorkDir() {
     WorkDir = ChopLastSlash(main.buffer->name);
 } RegisterCommand(Command_SetWorkDir, "");
 
+String CodeEndings[] = { ".c", ".cpp", ".h", ".hpp", ".py", ".lua", ".cxx", ".hxx", };
+
+void ListFilesRecursive(Buffer *buffer, String dir) {
+    Scratch scratch(buffer->line_starts.allocator);
+    for (FileIter it = IterateFiles(scratch, dir); IsValid(it); Advance(&it)) {
+        if (it.filename == ".git") {
+            continue;
+        }
+        if (it.is_directory) {
+            ListFilesRecursive(buffer, it.absolute_path);
+        } else {
+            bool match = false;
+            ForItem (ending, CodeEndings) {
+                if (EndsWith(it.absolute_path, ending)) {
+                    match = true;
+                    break;
+                }
+            }
+            if (match) RawAppendf(buffer, "%-80S || %S\n", it.filename, it.absolute_path);
+        }
+    }
+}
+
+void OpenCodeRecursive(String dir) {
+    Scratch scratch;
+    for (FileIter it = IterateFiles(scratch, dir); IsValid(it); Advance(&it)) {
+        if (it.filename == ".git") {
+            continue;
+        }
+        if (it.filename == "SDL") {
+            continue;
+        }
+        if (it.is_directory) {
+            OpenCodeRecursive(it.absolute_path);
+        } else {
+            bool match = false;
+            ForItem (ending, CodeEndings) {
+                if (EndsWith(it.absolute_path, ending)) {
+                    match = true;
+                    break;
+                }
+            }
+            if (match) {
+                BufferOpenFile(it.absolute_path);
+            }
+        }
+    }
+}
+
+void Command_OpenCode() {
+    OpenCodeRecursive(WorkDir);
+} RegisterCommand(Command_OpenCode, "");
+
 void Command_KillProcess() {
     BSet main = GetBSet(LastActiveLayoutWindowID);
     KillProcess(main.view);
 } RegisterCommand(Command_KillProcess, "");
 
 void Command_CloseWindow() {
-    BSet main = GetBSet(LastActiveLayoutWindowID);
-    main.window->kill = true;
+    Close(LastActiveLayoutWindowID);
 } RegisterCommand(Command_CloseWindow, "");
 
 SaveResult TrySavingBuffer(Buffer *buffer) {
@@ -717,7 +746,7 @@ void Command_Close() {
     }
 
     main.window->active_view = FindInactiveView();
-    main.view->kill = true;
+    Close(main.view->id);
 
     bool ref = false;
     For (Views) {
@@ -731,7 +760,7 @@ void Command_Close() {
     }
 
     if (!ref) {
-        main.buffer->kill = true;
+        Close(main.buffer->id);
     }
 } RegisterCommand(Command_Close, "ctrl-w");
 
@@ -747,13 +776,13 @@ void Command_CloseAll() {
             if (it->special) {
                 continue;
             }
-            it->kill = true;
+            Close(it->id);
         }
         For (Buffers) {
             if (it->special) {
                 continue;
             }
-            it->kill = true;
+            Close(it->id);
         }
     }
 } RegisterCommand(Command_CloseAll, "");
diff --git a/src/text_editor/coroutines.cpp b/src/text_editor/coroutines.cpp
index f60ea9b..d854551 100644
--- a/src/text_editor/coroutines.cpp
+++ b/src/text_editor/coroutines.cpp
@@ -17,6 +17,7 @@ mco_coro *CoAdd(CoroutineProc *proc) {
 }
 
 void CoUpdate(Event *event) {
+    ProfileFunction();
     IterRemove(ActiveCoroutines) {
         IterRemovePrepare(ActiveCoroutines);
 
@@ -45,4 +46,4 @@ Event *CoYield(mco_coro *co) {
     Assert(ok == MCO_SUCCESS);
 
     return event;
-}
\ No newline at end of file
+}
diff --git a/src/text_editor/draw.cpp b/src/text_editor/draw.cpp
index f7052ce..06d8764 100644
--- a/src/text_editor/draw.cpp
+++ b/src/text_editor/draw.cpp
@@ -100,6 +100,7 @@ void DrawUnderline(Window *window, View *view, Buffer *buffer, Range range, Colo
 }
 
 void DrawWindow(Window *window, Event &event) {
+    ProfileFunction();
     View   *view        = GetView(window->active_view);
     Buffer *buffer      = GetBuffer(view->active_buffer);
     Rect2   screen_rect = Rect0Size(event.xwindow, event.ywindow);
diff --git a/src/text_editor/globals.cpp b/src/text_editor/globals.cpp
index 113e88f..1827dc1 100644
--- a/src/text_editor/globals.cpp
+++ b/src/text_editor/globals.cpp
@@ -5,6 +5,7 @@ int FullScreenPositionX, FullScreenPositionY;
 bool Testing = false;
 bool AppIsRunning  = true;
 bool WaitForEvents = true;
+bool RunGCThisFrame;
 
 WindowID WindowIDs;
 ViewID   ViewIDs;
@@ -40,7 +41,6 @@ Caret    DocumentAnchor;
 
 Buffer *GCInfoBuffer;
 Buffer *EventBuffer;
-Buffer *ScratchBuffer;
 Buffer *TraceBuffer;
 View *TraceView;
 
@@ -50,8 +50,8 @@ Array<Event> EventPlayback;
 BlockArena Perm;
 
 // clipboard
-BlockArena      ClipboardArena;
-String16        SavedClipboardString;
+BlockArena ClipboardArena;
+String16 SavedClipboardString;
 Array<String16> SavedClipboardCarets = {SysAllocator};
 
 struct InternTable {
diff --git a/src/text_editor/process.cpp b/src/text_editor/process.cpp
index eccabe2..39bd12a 100644
--- a/src/text_editor/process.cpp
+++ b/src/text_editor/process.cpp
@@ -5,6 +5,7 @@
 // 'less' program which errors out and doesn't print anything
 // @todo: maybe I should ask someone smarter about this!
 void UpdateProcesses() {
+    ProfileFunction();
     IterRemove(ActiveProcesses) {
         IterRemovePrepare(ActiveProcesses);
         Scratch scratch;
@@ -70,4 +71,4 @@ bool ProcessIsActive(ViewID view) {
         }
     }
     return false;
-}
\ No newline at end of file
+}
diff --git a/src/text_editor/profiler.h b/src/text_editor/profiler.h
index e5eb1ed..beb5304 100644
--- a/src/text_editor/profiler.h
+++ b/src/text_editor/profiler.h
@@ -1,12 +1,373 @@
-#if 0
-    #include "spall.h"
+#if 1
+// SPDX-FileCopyrightText: © 2023 Phillip Trudeau-Tavara <pmttavara@protonmail.com>
+// SPDX-License-Identifier: MIT
+
+/*
+
+TODO: Optional Helper APIs:
+
+  - Compression API: would require a mutexed lockable context (yuck...)
+      - Either using a ZIP library, a name cache + TIDPID cache, or both (but ZIP is likely more than enough!!!)
+      - begin()/end() writes compressed chunks to a caller-determined destination
+          - The destination can be the buffered-writing API or a custom user destination
+      - Ultimately need to take a lock with some granularity... can that be the caller's responsibility?
+
+  - Counter Event: should allow tracking arbitrary named values with a single event, for memory and frame profiling
+
+  - Ring-buffer API
+        spall_ring_init
+        spall_ring_emit_begin
+        spall_ring_emit_end
+        spall_ring_flush
+*/
+
+#ifndef SPALL_H
+#define SPALL_H
+
+#if !defined(_MSC_VER) || defined(__clang__)
+#define SPALL_NOINSTRUMENT __attribute__((no_instrument_function))
+#define SPALL_FORCEINLINE __attribute__((always_inline))
+#else
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+#define SPALL_NOINSTRUMENT // Can't noinstrument on MSVC!
+#define SPALL_FORCEINLINE __forceinline
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+
+#define SPALL_FN static inline SPALL_NOINSTRUMENT
+#define SPALL_MIN(a, b) (((a) < (b)) ? (a) : (b))
+#define SPALL_MAX(a, b) (((a) > (b)) ? (a) : (b))
+
+#pragma pack(push, 1)
+
+typedef struct SpallHeader {
+    uint64_t magic_header; // = 0x0BADF00D
+    uint64_t version; // = 3
+    double   timestamp_unit;
+    uint64_t must_be_0;
+} SpallHeader;
+
+typedef enum {
+    SpallEventType_Invalid             = 0,
+    SpallEventType_Custom_Data         = 1, // Basic readers can skip this.
+    SpallEventType_StreamOver          = 2,
+
+    SpallEventType_Begin               = 3,
+    SpallEventType_End                 = 4,
+    SpallEventType_Instant             = 5,
+
+    SpallEventType_Overwrite_Timestamp = 6, // Retroactively change timestamp units - useful for incrementally improving RDTSC frequency.
+    SpallEventType_Pad_Skip            = 7,
+
+    SpallEventType_NameProcess         = 8,
+    SpallEventType_NameThread          = 9,
+} SpallEventType;
+
+typedef struct SpallBufferHeader {
+    uint32_t size;
+    uint32_t tid;
+    uint32_t pid;
+    uint64_t first_ts;
+} SpallBufferHeader;
+
+typedef struct SpallBeginEvent {
+    uint8_t type; // = SpallEventType_Begin
+    uint64_t when;
+
+    uint8_t name_length;
+    uint8_t args_length;
+} SpallBeginEvent;
+
+typedef struct SpallBeginEventMax {
+    SpallBeginEvent event;
+    char name_bytes[255];
+    char args_bytes[255];
+} SpallBeginEventMax;
+
+typedef struct SpallEndEvent {
+    uint8_t  type; // = SpallEventType_End
+    uint64_t when;
+} SpallEndEvent;
+
+typedef struct SpallPadSkipEvent {
+    uint8_t  type; // = SpallEventType_Pad_Skip
+    uint32_t size;
+} SpallPadSkipEvent;
+
+typedef struct SpallNameContainerEvent {
+    uint8_t type; // = SpallEventType_NameThread/Process
+    uint8_t name_length;
+} SpallNameContainerEvent;
+
+typedef struct SpallNameContainerEventMax {
+    SpallNameContainerEvent event;
+    char name_bytes[255];
+} SpallNameContainerEventMax;
+
+#pragma pack(pop)
+
+typedef struct SpallProfile SpallProfile;
+
+// Important!: If you define your own callbacks, mark them SPALL_NOINSTRUMENT!
+typedef bool (*SpallWriteCallback)(SpallProfile *self, const void *data, size_t length);
+typedef bool (*SpallFlushCallback)(SpallProfile *self);
+typedef void (*SpallCloseCallback)(SpallProfile *self);
+
+struct SpallProfile {
+    double timestamp_unit;
+    SpallWriteCallback write;
+    SpallFlushCallback flush;
+    SpallCloseCallback close;
+    void *data;
+};
+
+// Important!: If you are writing Begin/End events, then do NOT write
+//             events for the same PID + TID pair on different buffers!!!
+typedef struct SpallBuffer {
+    void *data;
+    size_t length;
+    uint32_t tid;
+    uint32_t pid;
+
+    // Internal data - don't assign this
+    size_t head;
+    uint64_t first_ts;
+} SpallBuffer;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+SPALL_FN SPALL_FORCEINLINE bool spall__file_write(SpallProfile *ctx, const void *p, size_t n) {
+    if (fwrite(p, n, 1, (FILE *)ctx->data) != 1) return false;
+    return true;
+}
+SPALL_FN bool spall__file_flush(SpallProfile *ctx) {
+    if (fflush((FILE *)ctx->data)) return false;
+    return true;
+}
+SPALL_FN void spall__file_close(SpallProfile *ctx) {
+    fclose((FILE *)ctx->data);
+    ctx->data = NULL;
+}
+
+SPALL_FN SPALL_FORCEINLINE bool spall__buffer_flush(SpallProfile *ctx, SpallBuffer *wb, uint64_t ts) {
+    wb->first_ts = SPALL_MAX(wb->first_ts, ts);
+
+    SpallBufferHeader hdr;
+    hdr.size = (uint32_t)(wb->head - sizeof(SpallBufferHeader));
+    hdr.pid = wb->pid;
+    hdr.tid = wb->tid;
+    hdr.first_ts = wb->first_ts;
+
+    memcpy(wb->data, &hdr, sizeof(hdr));
+
+    if (!ctx->write(ctx, wb->data, wb->head)) return false;
+    if (!ctx->flush(ctx)) return false;
+    wb->head = sizeof(SpallBufferHeader);
+    return true;
+}
+
+SPALL_FN bool spall_buffer_flush(SpallProfile *ctx, SpallBuffer *wb) {
+    if (!spall__buffer_flush(ctx, wb, 0)) return false;
+    return true;
+}
+
+SPALL_FN bool spall_buffer_quit(SpallProfile *ctx, SpallBuffer *wb) {
+    if (!spall_buffer_flush(ctx, wb)) return false;
+    return true;
+}
+
+SPALL_FN size_t spall_build_header(void *buffer, size_t rem_size, double timestamp_unit) {
+    size_t header_size = sizeof(SpallHeader);
+    if (header_size > rem_size) {
+        return 0;
+    }
+
+    SpallHeader *header = (SpallHeader *)buffer;
+    header->magic_header = 0x0BADF00D;
+    header->version = 3;
+    header->timestamp_unit = timestamp_unit;
+    header->must_be_0 = 0;
+    return header_size;
+}
+SPALL_FN SPALL_FORCEINLINE size_t spall_build_begin(void *buffer, size_t rem_size, const char *name, int32_t name_len, const char *args, int32_t args_len, uint64_t when) {
+    SpallBeginEventMax *ev = (SpallBeginEventMax *)buffer;
+    uint8_t trunc_name_len = (uint8_t)SPALL_MIN(name_len, 255); // will be interpreted as truncated in the app (?)
+    uint8_t trunc_args_len = (uint8_t)SPALL_MIN(args_len, 255); // will be interpreted as truncated in the app (?)
+
+    size_t ev_size = sizeof(SpallBeginEvent) + trunc_name_len + trunc_args_len;
+    if (ev_size > rem_size) {
+        return 0;
+    }
+
+    ev->event.type = SpallEventType_Begin;
+    ev->event.when = when;
+    ev->event.name_length = trunc_name_len;
+    ev->event.args_length = trunc_args_len;
+    memcpy(ev->name_bytes,                  name, trunc_name_len);
+    memcpy(ev->name_bytes + trunc_name_len, args, trunc_args_len);
+
+    return ev_size;
+}
+SPALL_FN SPALL_FORCEINLINE size_t spall_build_end(void *buffer, size_t rem_size, uint64_t when) {
+    size_t ev_size = sizeof(SpallEndEvent);
+    if (ev_size > rem_size) {
+        return 0;
+    }
+
+    SpallEndEvent *ev = (SpallEndEvent *)buffer;
+    ev->type = SpallEventType_End;
+    ev->when = when;
+
+    return ev_size;
+}
+SPALL_FN SPALL_FORCEINLINE size_t spall_build_name(void *buffer, size_t rem_size, const char *name, int32_t name_len, SpallEventType type) {
+    SpallNameContainerEventMax *ev = (SpallNameContainerEventMax *)buffer;
+    uint8_t trunc_name_len = (uint8_t)SPALL_MIN(name_len, 255); // will be interpreted as truncated in the app (?)
+
+    size_t ev_size = sizeof(SpallNameContainerEvent) + trunc_name_len;
+    if (ev_size > rem_size) {
+        return 0;
+    }
+
+    ev->event.type = type;
+    ev->event.name_length = trunc_name_len;
+    memcpy(ev->name_bytes, name, trunc_name_len);
+
+    return ev_size;
+}
+
+SPALL_FN void spall_quit(SpallProfile *ctx) {
+    if (!ctx) return;
+    if (ctx->close) ctx->close(ctx);
+
+    memset(ctx, 0, sizeof(*ctx));
+}
+
+SPALL_FN bool spall_init_callbacks(double timestamp_unit,
+                                   SpallWriteCallback write,
+                                   SpallFlushCallback flush,
+                                   SpallCloseCallback close,
+                                   void *userdata,
+                                   SpallProfile *ctx) {
+
+    if (timestamp_unit < 0) return false;
+
+    memset(ctx, 0, sizeof(*ctx));
+    ctx->timestamp_unit = timestamp_unit;
+    ctx->data = userdata;
+    ctx->write = write;
+    ctx->flush = flush;
+    ctx->close = close;
+
+    SpallHeader header;
+    size_t len = spall_build_header(&header, sizeof(header), timestamp_unit);
+    if (!ctx->write(ctx, &header, len)) {
+        spall_quit(ctx);
+        return false;
+    }
+
+    return true;
+}
+
+SPALL_FN bool spall_init_file(const char* filename, double timestamp_unit, SpallProfile *ctx) {
+    if (!filename) return false;
+
+    FILE *f = fopen(filename, "wb"); // TODO: handle utf8 and long paths on windows
+    if (f) { // basically freopen() but we don't want to force users to lug along another macro define
+        fclose(f);
+        f = fopen(filename, "ab");
+    }
+    if (!f) { return false; }
+
+    return spall_init_callbacks(timestamp_unit, spall__file_write, spall__file_flush, spall__file_close, (void *)f, ctx);
+}
+
+SPALL_FN bool spall_flush(SpallProfile *ctx) {
+    if (!ctx->flush(ctx)) return false;
+    return true;
+}
+
+SPALL_FN bool spall_buffer_init(SpallProfile *ctx, SpallBuffer *wb) {
+    // Fails if buffer is not big enough to contain at least one event!
+    if (wb->length < sizeof(SpallBufferHeader) + sizeof(SpallBeginEventMax)) {
+        return false;
+    }
+
+    wb->head = sizeof(SpallBufferHeader);
+    return true;
+}
+
+
+SPALL_FN SPALL_FORCEINLINE bool spall_buffer_begin_args(SpallProfile *ctx, SpallBuffer *wb, const char *name, int32_t name_len, const char *args, int32_t args_len, uint64_t when) {
+    if ((wb->head + sizeof(SpallBeginEventMax)) > wb->length) {
+        if (!spall__buffer_flush(ctx, wb, when)) {
+            return false;
+        }
+    }
+
+    wb->head += spall_build_begin((char *)wb->data + wb->head, wb->length - wb->head, name, name_len, args, args_len, when);
+
+    return true;
+}
+
+SPALL_FN bool spall_buffer_begin(SpallProfile *ctx, SpallBuffer *wb, const char *name, int32_t name_len, uint64_t when) {
+    return spall_buffer_begin_args(ctx, wb, name, name_len, "", 0, when);
+}
+
+SPALL_FN bool spall_buffer_end(SpallProfile *ctx, SpallBuffer *wb, uint64_t when) {
+    if ((wb->head + sizeof(SpallEndEvent)) > wb->length) {
+        if (!spall__buffer_flush(ctx, wb, when)) {
+            return false;
+        }
+    }
+
+    wb->head += spall_build_end((char *)wb->data + wb->head, wb->length - wb->head, when);
+    return true;
+}
+
+SPALL_FN bool spall_buffer_name_thread(SpallProfile *ctx, SpallBuffer *wb, const char *name, int32_t name_len) {
+    if ((wb->head + sizeof(SpallNameContainerEvent)) > wb->length) {
+        if (!spall__buffer_flush(ctx, wb, 0)) {
+            return false;
+        }
+    }
+
+    wb->head += spall_build_name((char *)wb->data + wb->head, wb->length - wb->head, name, name_len, SpallEventType_NameThread);
+    return true;
+}
+
+SPALL_FN bool spall_buffer_name_process(SpallProfile *ctx, SpallBuffer *wb, const char *name, int32_t name_len) {
+    if ((wb->head + sizeof(SpallNameContainerEvent)) > wb->length) {
+        if (!spall__buffer_flush(ctx, wb, 0)) {
+            return false;
+        }
+    }
+
+    wb->head += spall_build_name((char *)wb->data + wb->head, wb->length - wb->head, name, name_len, SpallEventType_NameProcess);
+    return true;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPALL_H
+
 
 static SpallProfile spall_ctx;
 static SpallBuffer  spall_buffer;
 double              GetTimeMicros(void);
 
 void BeginProfiler() {
-    spall_ctx = spall_init_file("hello_world.spall", 1);
+    spall_init_file("te.spall", 1, &spall_ctx);
 
     int            buffer_size = 1 * 1024 * 1024;
     unsigned char *buffer      = (unsigned char *)malloc(buffer_size);
@@ -25,14 +386,14 @@ void _BeginProfileScope(const char *name, int len) {
     spall_buffer_begin(&spall_ctx, &spall_buffer,
                        name,                // name of your name
                        len,                 // name len minus the null terminator
-                       GetTimeMicros() // timestamp in microseconds -- start of your timing block
+                       (uint64_t)GetTimeMicros() // timestamp in microseconds -- start of your timing block
     );
 }
     #define BeginProfileScope(name) _BeginProfileScope(#name, sizeof(#name) - 1)
 
 void EndProfileScope() {
     spall_buffer_end(&spall_ctx, &spall_buffer,
-                     GetTimeMicros() // timestamp in microseconds -- end of your timing block
+                     (uint64_t)GetTimeMicros() // timestamp in microseconds -- end of your timing block
     );
 }
     #define ProfileScope(name) ProfileScope_ PROFILE_SCOPE_VAR_##name(#name, sizeof(#name) - 1)
@@ -48,4 +409,4 @@ struct ProfileScope_ {
     #define EndProfiler()
     #define BeginProfileScope(name)
     #define EndProfileScope()
-#endif
\ No newline at end of file
+#endif
diff --git a/src/text_editor/text_editor.cpp b/src/text_editor/text_editor.cpp
index a4ebed6..737be9c 100644
--- a/src/text_editor/text_editor.cpp
+++ b/src/text_editor/text_editor.cpp
@@ -412,32 +412,20 @@ void OnCommand(Event event) {
     if (event.kind == EVENT_QUIT) {
         Command_Quit();
     }
+
+    IF_DEBUG(AssertRanges(main.view->carets));
+    IF_DEBUG(AssertRanges(active.view->carets));
 }
 
 void GarbageCollect() {
+    if (RunGCThisFrame == false) {
+        return;
+    }
+    RunGCThisFrame = false;
+
+    ProfileFunction();
     Allocator sys_allocator = GetSystemAllocator();
 
-    For (Views) {
-       IF_DEBUG(AssertRanges(it->carets));
-    }
-
-    For (Windows) {
-        if (it->sync_visibility_with_focus) {
-            if (it->id == ActiveWindowID) {
-                it->visible = true;
-            } else {
-                it->visible = false;
-            }
-        }
-    }
-
-    Window *window = GetWindow(ActiveWindowID);
-    if (ActiveWindowID.id != LastActiveLayoutWindowID.id) {
-        if (window->layout) {
-            LastActiveLayoutWindowID = ActiveWindowID;
-        }
-    }
-
     For(Buffers) {
         if (it->file_mod_time) {
             int64_t new_file_mod_time = GetFileModTime(it->name);
@@ -451,8 +439,12 @@ void GarbageCollect() {
     IterRemove(Views) {
         IterRemovePrepare(Views);
 
+        if (it->close && it->id.id == 0) {
+            InvalidCodepath();
+        }
+
         Buffer *buffer = GetBuffer(it->active_buffer);
-        if (it->kill == 0) {
+        if (!it->close) {
             if (!buffer->garbage) {
                 continue;
             }
@@ -472,13 +464,11 @@ void GarbageCollect() {
     IterRemove(Buffers) {
         IterRemovePrepare(Buffers);
 
-
-        if (it->id.id == 0) {
-            it->kill = 0;
-            continue;
+        if (it->close && it->id.id == 0) {
+            InvalidCodepath();
         }
 
-        if (it->kill == 0) {
+        if (!it->close) {
             if (!it->garbage) {
                 continue;
             }
@@ -496,7 +486,11 @@ void GarbageCollect() {
 
     IterRemove(Windows) {
         IterRemovePrepare(Windows);
-        if (it->kill) {
+        if (it->close && it->id.id == 0) {
+            InvalidCodepath();
+        }
+
+        if (it->close) {
             RawAppendf(GCInfoBuffer, "Wind %d %S\n", (int)it->id.id);
             Dealloc(&it->goto_history);
             Dealloc(&it->goto_redo);
@@ -512,10 +506,12 @@ void Update(Event event) {
     Scratch    scratch;
     Array<Window *> order = GetWindowZOrder(scratch);
     For(order) {
-        if (!it->visible) continue;
-        View *view                      = GetView(it->active_view);
+        if (!it->visible) {
+            continue;
+        }
+        View *view = GetView(it->active_view);
         view->main_caret_on_begin_frame = view->carets[0];
-        view->update_scroll             = true;
+        view->update_scroll = true;
     }
 
     OnCommand(event);
@@ -524,7 +520,27 @@ void Update(Event event) {
     CommandWindowUpdate();
     UpdateProcesses();
     CoUpdate(&event);
-    GarbageCollect();
+
+    {
+        ProfileScope(WindowEndOfFrameVisibilityAndLastActive);
+        For (Windows) {
+            if (it->sync_visibility_with_focus) {
+                if (it->id == ActiveWindowID) {
+                    it->visible = true;
+                } else {
+                    it->visible = false;
+                }
+            }
+        }
+
+        Window *window = GetWindow(ActiveWindowID);
+        if (ActiveWindowID.id != LastActiveLayoutWindowID.id) {
+            if (window->layout) {
+                LastActiveLayoutWindowID = ActiveWindowID;
+            }
+        }
+    }
+
 
     For(IterateInReverse(&order)) {
         if (!it->visible) continue;
@@ -532,6 +548,8 @@ void Update(Event event) {
         View *view = GetView(it->active_view);
         UpdateScroll(it, !AreEqual(view->main_caret_on_begin_frame, view->carets[0]) && view->update_scroll);
     }
+
+    GarbageCollect();
 }
 
 void Windows_SetupVCVarsall(mco_coro *co) {
@@ -564,9 +582,9 @@ void Windows_SetupVCVarsall(mco_coro *co) {
 }
 
 void MainLoop() {
+    ProfileFunction();
+    Scratch scratch;
     FrameID += 1;
-
-    Scratch      scratch;
     Array<Event> frame_events = GetEventsForFrame(scratch);
     Serializer ser = {EventBuffer};
     For(frame_events) {
diff --git a/src/text_editor/view.cpp b/src/text_editor/view.cpp
index 1130e82..a9802ea 100644
--- a/src/text_editor/view.cpp
+++ b/src/text_editor/view.cpp
@@ -80,6 +80,17 @@ API bool ViewIsReferenced(ViewID view) {
     return ViewIsActive(view);
 }
 
+void Close(ViewID id) {
+    View *view = GetView(id);
+    if (view) {
+        if (view->id.id == 0) {
+            return;
+        }
+        view->close = true;
+        RunGCThisFrame = true;
+    }
+}
+
 ViewID FindInactiveView(ViewID default_view = NullViewID) {
     For (Views) {
         if (!ViewIsActive(it->id)) return it->id;
diff --git a/src/text_editor/view.h b/src/text_editor/view.h
index ef3352f..c0a534b 100644
--- a/src/text_editor/view.h
+++ b/src/text_editor/view.h
@@ -13,7 +13,7 @@ struct View {
 
     String16 prev_search_line;
     struct {
-        unsigned kill : 1;
+        unsigned close : 1;
         unsigned special : 1;
     };
 };
diff --git a/src/text_editor/window.cpp b/src/text_editor/window.cpp
index c96166f..c63a1cb 100644
--- a/src/text_editor/window.cpp
+++ b/src/text_editor/window.cpp
@@ -18,13 +18,24 @@ Window *CreateWind() {
     return w;
 }
 
-inline Window *GetWindow(WindowID id, Window *default_window = Windows[0]) {
+Window *GetWindow(WindowID id, Window *default_window = Windows[0]) {
     For(Windows) {
         if (it->id == id) return it;
     }
     return default_window;
 }
 
+void Close(WindowID id) {
+    Window *window = GetWindow(id, NULL);
+    if (window) {
+        if (window->id.id == 0) {
+            return;
+        }
+        window->close = true;
+        RunGCThisFrame = true;
+    }
+}
+
 Window *FindWindow(ViewID view_id, Window *default_window = NULL) {
     For(Windows) {
         if (it->active_view == view_id) {
@@ -36,7 +47,7 @@ Window *FindWindow(ViewID view_id, Window *default_window = NULL) {
 
 Window *FindWindow(String buffer_name, Window *default_window = NULL) {
     For(Windows) {
-        View   *it_view   = GetView(it->active_view);
+        View *it_view = GetView(it->active_view);
         Buffer *it_buffer = GetBuffer(it_view->active_buffer);
         if (it_buffer->name == buffer_name) {
             return it;
@@ -136,6 +147,7 @@ double WindowCalcEvenResizerValue(Int screen_size_x, Int *out_count = NULL) {
 }
 
 void LayoutWindows(int16_t wx, int16_t wy) {
+    ProfileFunction();
     Rect2I screen_rect = RectI0Size(wx, wy);
 
     CommandWindowLayout(&screen_rect, wx, wy);
@@ -237,8 +249,10 @@ void CheckpointBeforeGoto(Window *window) {
 GotoCrumb GetCrumb(Array<GotoCrumb> *cr) {
     for (; cr->len;) {
         GotoCrumb c = Pop(cr);
-        View *view = FindView(c.view_id);
-        if (view) return c;
+        View *view = GetView(c.view_id);
+        if (view) {
+            return c;
+        }
     }
     return {};
 }
diff --git a/src/text_editor/window.h b/src/text_editor/window.h
index b5feba5..613b76c 100644
--- a/src/text_editor/window.h
+++ b/src/text_editor/window.h
@@ -30,7 +30,7 @@ struct Window {
         bool draw_line_highlight : 1;
         bool visible : 1;
         bool layout : 1;
-        bool kill : 1;
+        bool close : 1;
         bool sync_visibility_with_focus : 1;
         bool lose_focus_on_escape : 1;
         bool jump_history : 1;
@@ -60,4 +60,4 @@ void StatusWindowInit();
 void StatusWindowLayout(Rect2I *rect, Int wx, Int wy);
 
 void DebugWindowInit();
-void DebugWindowLayout(Rect2I *rect, Int wx, Int wy);
\ No newline at end of file
+void DebugWindowLayout(Rect2I *rect, Int wx, Int wy);
diff --git a/src/text_editor/window_command.cpp b/src/text_editor/window_command.cpp
index dde4d21..14362fe 100644
--- a/src/text_editor/window_command.cpp
+++ b/src/text_editor/window_command.cpp
@@ -28,6 +28,7 @@ void CommandWindowLayout(Rect2I *rect, Int wx, Int wy) {
 }
 
 void CommandWindowUpdate() {
+    ProfileFunction();
     BSet active = GetBSet(ActiveWindowID);
     if (active.window->id == CommandBarWindowID) {
         if (!ProcessIsActive(active.view->id)) {
diff --git a/src/text_editor/window_debug.cpp b/src/text_editor/window_debug.cpp
index bdb213a..26f6e9d 100644
--- a/src/text_editor/window_debug.cpp
+++ b/src/text_editor/window_debug.cpp
@@ -31,46 +31,51 @@ void DebugWindowLayout(Rect2I *rect, Int wx, Int wy) {
 }
 
 void DebugWindowUpdate() {
-    Buffer *buffer = GetBuffer(DebugBufferID);
+    ProfileFunction();
+    BSet set = GetBSet(DebugWindowID);
+    if (!set.window->visible) {
+        return;
+    }
 
-    Window *window = GetActiveWind();
-    View   *view   = GetView(window->active_view);
-    if (view->active_buffer.id == buffer->id.id) return;
+    BSet active = GetBSet(ActiveWindowID);
+    if (active.buffer->id.id == set.buffer->id.id) {
+        return;
+    }
 
     BSet main = GetBSet(LastActiveLayoutWindowID);
 
     Scratch  scratch;
     String   s      = Format(scratch, "wid: %d\nvid: %d\nbid: %d\nframe: %lld\n", (int)main.window->id.id, (int)main.view->id.id, (int)main.buffer->id.id, (long long)FrameID);
     String16 string = ToString16(scratch, s);
-    RawReplaceText(buffer, GetRange(buffer), string);
+    RawReplaceText(set.buffer, GetRange(set.buffer), string);
 
     float xmouse, ymouse;
     SDL_GetMouseState(&xmouse, &ymouse);
-    RawAppendf(buffer, "mouse: [%f, %f]\n", roundf(DPIScale * xmouse), roundf(DPIScale * ymouse));
+    RawAppendf(set.buffer, "mouse: [%f, %f]\n", roundf(DPIScale * xmouse), roundf(DPIScale * ymouse));
 
-    RawAppendf(buffer, "BufferID id = %d\n", main.buffer->id.id);
-    RawAppendf(buffer, "String name = %S\n", main.buffer->name);
-    RawAppendf(buffer, "Int change_id = %lld\n", (long long)main.buffer->change_id);
-    RawAppendf(buffer, "Int user_change_id = %lld\n", (long long)main.buffer->user_change_id);
-    RawAppendf(buffer, "Int file_mod_time = %lld\n", (long long)main.buffer->file_mod_time);
-    RawAppendf(buffer, "\n");
+    RawAppendf(set.buffer, "BufferID id = %d\n", main.buffer->id.id);
+    RawAppendf(set.buffer, "String name = %S\n", main.buffer->name);
+    RawAppendf(set.buffer, "Int change_id = %lld\n", (long long)main.buffer->change_id);
+    RawAppendf(set.buffer, "Int user_change_id = %lld\n", (long long)main.buffer->user_change_id);
+    RawAppendf(set.buffer, "Int file_mod_time = %lld\n", (long long)main.buffer->file_mod_time);
+    RawAppendf(set.buffer, "\n");
 
-    RawAppendf(buffer, "U16 *data = %zu\n", main.buffer->data);
-    RawAppendf(buffer, "Int len = %lld\n", (long long)main.buffer->len);
-    RawAppendf(buffer, "Int cap = %lld\n", (long long)main.buffer->cap);
-    RawAppendf(buffer, "Array<Int> line_starts = {len = %lld, cap = %lld, data = %zu}\n", (long long)main.buffer->line_starts.len, (long long)main.buffer->line_starts.cap, main.buffer->line_starts.data);
-    RawAppendf(buffer, "\n");
+    RawAppendf(set.buffer, "U16 *data = %zu\n", main.buffer->data);
+    RawAppendf(set.buffer, "Int len = %lld\n", (long long)main.buffer->len);
+    RawAppendf(set.buffer, "Int cap = %lld\n", (long long)main.buffer->cap);
+    RawAppendf(set.buffer, "Array<Int> line_starts = {len = %lld, cap = %lld, data = %zu}\n", (long long)main.buffer->line_starts.len, (long long)main.buffer->line_starts.cap, main.buffer->line_starts.data);
+    RawAppendf(set.buffer, "\n");
 
-    RawAppendf(buffer, "Array<HistoryEntry> undo_stack = {len = %lld, cap = %lld, data = %zu}\n", (long long)main.buffer->undo_stack.len, (long long)main.buffer->undo_stack.cap, main.buffer->undo_stack.data);
-    RawAppendf(buffer, "Array<HistoryEntry> redo_stack = {len = %lld, cap = %lld, data = %zu}\n", (long long)main.buffer->redo_stack.len, (long long)main.buffer->redo_stack.cap, main.buffer->redo_stack.data);
-    RawAppendf(buffer, "int edit_phase = %d", main.buffer->edit_phase);
-    RawAppendf(buffer, "\n");
+    RawAppendf(set.buffer, "Array<HistoryEntry> undo_stack = {len = %lld, cap = %lld, data = %zu}\n", (long long)main.buffer->undo_stack.len, (long long)main.buffer->undo_stack.cap, main.buffer->undo_stack.data);
+    RawAppendf(set.buffer, "Array<HistoryEntry> redo_stack = {len = %lld, cap = %lld, data = %zu}\n", (long long)main.buffer->redo_stack.len, (long long)main.buffer->redo_stack.cap, main.buffer->redo_stack.data);
+    RawAppendf(set.buffer, "int edit_phase = %d", main.buffer->edit_phase);
+    RawAppendf(set.buffer, "\n");
 
-    RawAppendf(buffer, "int no_history = %d\n", main.buffer->no_history);
-    RawAppendf(buffer, "int no_line_starts = %d\n", main.buffer->no_line_starts);
-    RawAppendf(buffer, "int dirty = %d\n", main.buffer->dirty);
-    RawAppendf(buffer, "int changed_on_disk = %d\n", main.buffer->changed_on_disk);
-    RawAppendf(buffer, "int garbage = %d\n", main.buffer->garbage);
+    RawAppendf(set.buffer, "int no_history = %d\n", main.buffer->no_history);
+    RawAppendf(set.buffer, "int no_line_starts = %d\n", main.buffer->no_line_starts);
+    RawAppendf(set.buffer, "int dirty = %d\n", main.buffer->dirty);
+    RawAppendf(set.buffer, "int changed_on_disk = %d\n", main.buffer->changed_on_disk);
+    RawAppendf(set.buffer, "int garbage = %d\n", main.buffer->garbage);
 }
 
 void Command_ToggleDebug() {
diff --git a/src/text_editor/window_status.cpp b/src/text_editor/window_status.cpp
index a207bed..eeb9c6a 100644
--- a/src/text_editor/window_status.cpp
+++ b/src/text_editor/window_status.cpp
@@ -25,6 +25,7 @@ void StatusWindowLayout(Rect2I *rect, Int wx, Int wy) {
 }
 
 void StatusWindowUpdate() {
+    ProfileFunction();
     Window *status_bar_window = GetWindow(StatusBarWindowID, NULL);
     if (status_bar_window == NULL) {
         return;