diff --git a/cboard.c b/cboard.c
index adba999..2cea9cc 100644
--- a/cboard.c
+++ b/cboard.c
@@ -1,7 +1,8 @@
 #include "cboard.h"
 #include "gbuffer.h"
-#include <stdio.h>
+#include <ctype.h>
 
+ORCA_FORCE_NO_INLINE
 Cboard_error cboard_copy(Glyph const* gbuffer, Usz field_height,
                          Usz field_width, Usz rect_y, Usz rect_x, Usz rect_h,
                          Usz rect_w) {
@@ -19,6 +20,7 @@ Cboard_error cboard_copy(Glyph const* gbuffer, Usz field_height,
   return status ? Cboard_error_process_exit_error : Cboard_error_none;
 }
 
+ORCA_FORCE_NO_INLINE
 Cboard_error cboard_paste(Glyph* gbuffer, Usz height, Usz width, Usz y, Usz x,
                           Usz* out_h, Usz* out_w) {
   FILE* fp = popen("xclip -o -selection clipboard 2>/dev/null", "r");
@@ -53,3 +55,113 @@ Cboard_error cboard_paste(Glyph* gbuffer, Usz height, Usz width, Usz y, Usz x,
   *out_w = max_x - start_x + 1;
   return status ? Cboard_error_process_exit_error : Cboard_error_none;
 }
+
+ORCA_FORCE_NO_INLINE
+Conf_read_result conf_read_line(FILE* file, char* buf, Usz bufsize,
+                                char** out_left, Usz* out_leftsize,
+                                char** out_right, Usz* out_rightsize) {
+  Usz len, a0, a1, b0, b1;
+  char* s;
+  if (bufsize < 2)
+    goto insufficient_buffer;
+#if SIZE_MAX > INT_MAX
+  if (bufsize > (Usz)INT_MAX)
+    exit(1); // he boot too big
+#endif
+  s = fgets(buf, (int)bufsize, file);
+  if (!s) {
+    if (feof(file))
+      goto eof;
+    goto ioerror;
+  }
+  len = strlen(buf);
+  if (len == bufsize - 1 && buf[len - 1] != '\n' && !feof(file))
+    goto insufficient_buffer;
+  a0 = 0; // start of left
+  for (;;) {
+    if (a0 == len)
+      goto ignore;
+    char c = s[a0];
+    if (c == ';' || c == '#') // comment line, ignore
+      goto ignore;
+    if (c == '=') // '=' before any other char, bad
+      goto ignore;
+    if (!isspace(c))
+      break;
+    a0++;
+  }
+  a1 = a0; // end of left
+  for (;;) {
+    a1++;
+    if (a1 == len)
+      goto ignore;
+    char c = s[a1];
+    Usz x = a1;
+    while (isspace(c)) {
+      x++;
+      if (x == len)
+        goto ignore;
+      c = s[x];
+    }
+    if (c == '=') {
+      b0 = x;
+      break;
+    }
+    a1 = x;
+  }
+  for (;;) {
+    b0++;
+    if (b0 == len)
+      goto ignore;
+    char c = s[b0];
+    if (!isspace(c))
+      break;
+  }
+  b1 = b0; // end of right
+  for (;;) {
+    b1++;
+    if (b1 == len)
+      goto ok;
+    char c = s[b1];
+    Usz x = b1;
+    while (isspace(c)) {
+      x++;
+      if (x == len)
+        goto ok;
+      c = s[x];
+    }
+    b1 = x;
+  }
+  Conf_read_result err;
+insufficient_buffer:
+  err = Conf_read_buffer_too_small;
+  goto fail;
+eof:
+  err = Conf_read_eof;
+  goto fail;
+ioerror:
+  err = Conf_read_io_error;
+  goto fail;
+fail:
+  *out_left = NULL;
+  *out_leftsize = 0;
+  goto no_right;
+ignore:
+  s[len - 1] = '\0';
+  *out_left = s;
+  *out_leftsize = len;
+  err = Conf_read_irrelevant;
+  goto no_right;
+no_right:
+  *out_right = NULL;
+  *out_rightsize = 0;
+  return err;
+ok:
+  s[a1] = '\0';
+  s[b1] = '\0';
+  *out_left = s + a0;
+  *out_leftsize = a1 - a0;
+  *out_right = s + b0;
+  *out_rightsize = b1 - b0;
+  return Conf_read_left_and_right;
+}
diff --git a/cboard.h b/cboard.h
index 757ef12..5a4e72d 100644
--- a/cboard.h
+++ b/cboard.h
@@ -1,5 +1,6 @@
 #pragma once
 #include "base.h"
+#include <stdio.h> // FILE cannot be forward declared
 
 typedef enum {
   Cboard_error_none = 0,
@@ -14,3 +15,15 @@ Cboard_error cboard_copy(Glyph const* gbuffer, Usz field_height,
 
 Cboard_error cboard_paste(Glyph* gbuffer, Usz height, Usz width, Usz y, Usz x,
                           Usz* out_h, Usz* out_w);
+
+typedef enum {
+  Conf_read_left_and_right = 0, // left and right will be set
+  Conf_read_irrelevant,         // only left will be set
+  Conf_read_buffer_too_small,   // neither will be set
+  Conf_read_eof,                // "
+  Conf_read_io_error,           // "
+} Conf_read_result;
+
+Conf_read_result conf_read_line(FILE* file, char* buf, Usz bufsize,
+                                char** out_left, Usz* out_leftlen,
+                                char** out_right, Usz* out_rightlen);
diff --git a/prefs.c b/prefs.c
deleted file mode 100644
index e97df3d..0000000
--- a/prefs.c
+++ /dev/null
@@ -1,112 +0,0 @@
-#include "prefs.h"
-#include <ctype.h>
-
-ORCA_FORCE_NO_INLINE
-Conf_read_result conf_read_line(FILE* file, char* buf, Usz bufsize,
-                                char** out_left, Usz* out_leftsize,
-                                char** out_right, Usz* out_rightsize) {
-  Usz len, a0, a1, b0, b1;
-  char* s;
-  if (bufsize < 2)
-    goto insufficient_buffer;
-#if SIZE_MAX > INT_MAX
-  if (bufsize > (Usz)INT_MAX)
-    exit(1); // he boot too big
-#endif
-  s = fgets(buf, (int)bufsize, file);
-  if (!s) {
-    if (feof(file))
-      goto eof;
-    goto ioerror;
-  }
-  len = strlen(buf);
-  if (len == bufsize - 1 && buf[len - 1] != '\n' && !feof(file))
-    goto insufficient_buffer;
-  a0 = 0; // start of left
-  for (;;) {
-    if (a0 == len)
-      goto ignore;
-    char c = s[a0];
-    if (c == ';' || c == '#') // comment line, ignore
-      goto ignore;
-    if (c == '=') // '=' before any other char, bad
-      goto ignore;
-    if (!isspace(c))
-      break;
-    a0++;
-  }
-  a1 = a0; // end of left
-  for (;;) {
-    a1++;
-    if (a1 == len)
-      goto ignore;
-    char c = s[a1];
-    Usz x = a1;
-    while (isspace(c)) {
-      x++;
-      if (x == len)
-        goto ignore;
-      c = s[x];
-    }
-    if (c == '=') {
-      b0 = x;
-      break;
-    }
-    a1 = x;
-  }
-  for (;;) {
-    b0++;
-    if (b0 == len)
-      goto ignore;
-    char c = s[b0];
-    if (!isspace(c))
-      break;
-  }
-  b1 = b0; // end of right
-  for (;;) {
-    b1++;
-    if (b1 == len)
-      goto ok;
-    char c = s[b1];
-    Usz x = b1;
-    while (isspace(c)) {
-      x++;
-      if (x == len)
-        goto ok;
-      c = s[x];
-    }
-    b1 = x;
-  }
-  Conf_read_result err;
-insufficient_buffer:
-  err = Conf_read_buffer_too_small;
-  goto fail;
-eof:
-  err = Conf_read_eof;
-  goto fail;
-ioerror:
-  err = Conf_read_io_error;
-  goto fail;
-fail:
-  *out_left = NULL;
-  *out_leftsize = 0;
-  goto no_right;
-ignore:
-  s[len - 1] = '\0';
-  *out_left = s;
-  *out_leftsize = len;
-  err = Conf_read_irrelevant;
-  goto no_right;
-no_right:
-  *out_right = NULL;
-  *out_rightsize = 0;
-  return err;
-ok:
-  s[a1] = '\0';
-  s[b1] = '\0';
-  *out_left = s + a0;
-  *out_leftsize = a1 - a0;
-  *out_right = s + b0;
-  *out_rightsize = b1 - b0;
-  return Conf_read_left_and_right;
-}
diff --git a/prefs.h b/prefs.h
deleted file mode 100644
index 049e6f7..0000000
--- a/prefs.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#pragma once
-#include "base.h"
-#include <stdio.h> // FILE cannot be forward declared
-
-typedef enum {
-  Conf_read_left_and_right = 0, // left and right will be set
-  Conf_read_irrelevant,         // only left will be set
-  Conf_read_buffer_too_small,   // neither will be set
-  Conf_read_eof,                // "
-  Conf_read_io_error,           // "
-} Conf_read_result;
-
-Conf_read_result conf_read_line(FILE* file, char* buf, Usz bufsize,
-                                char** out_left, Usz* out_leftlen,
-                                char** out_right, Usz* out_rightlen);
diff --git a/tool b/tool
index 69b6016..8d0e7ec 100755
--- a/tool
+++ b/tool
@@ -308,7 +308,7 @@ build_target() {
       out_exe=cli
       ;;
     orca|tui)
-      add source_files osc_out.c term_util.c cboard.c prefs.c tui_main.c
+      add source_files osc_out.c term_util.c cboard.c tui_main.c
       add cc_flags -D_XOPEN_SOURCE_EXTENDED=1
       # thirdparty headers (like sokol_time.h) should get -isystem for their
       # include dir so that any warnings they generate with our warning flags