diff --git a/Makefile b/Makefile
index 99d9f2fe..1040c1b1 100644
--- a/Makefile
+++ b/Makefile
@@ -290,12 +290,76 @@ prefab-windows-release-build: prereqs \
 build/prefab/windows/release/BallisticaCore.exe: .efrocachemap
 	@tools/snippets efrocache_get $@
 
+prefab-windows-server-debug: prefab-windows-server-debug-build
+	build/prefab/windows-server/debug/dist/Python.exe \
+ build/prefab/windows-server/debug/ballisticacore_server.py
+
+prefab-windows-server-debug-build: prereqs \
+ assets-windows-${PREFAB_WINDOWS_PLATFORM} \
+ build/prefab/windows-server/debug/dist/ballisticacore_headless.exe \
+ build/prefab/windows-server/debug/launch_ballisticacore_server.bat \
+ build/prefab/windows-server/debug/ballisticacore_server.py \
+ build/prefab/windows-server/debug/config_template.yaml
+	@${STAGE_ASSETS} -win-$(PREFAB_WINDOWS_PLATFORM) \
+ build/prefab/windows-server/debug/dist
+
+build/prefab/windows-server/debug/dist/ballisticacore_headless.exe: .efrocachemap
+	@tools/snippets efrocache_get $@
+
+build/prefab/windows-server/debug/ballisticacore_server.py: \
+ assets/src/server/server.py
+	cp $< $@
+
+build/prefab/windows-server/debug/launch_ballisticacore_server.bat: \
+ assets/src/server/server.bat
+	cp $< $@
+
+build/prefab/windows-server/debug/config_template.yaml: \
+ assets/src/server/config.yaml
+	cp $< $@
+
+prefab-windows-server-release: prefab-windows-server-release-build
+	build/prefab/windows-server/release/dist/Python.exe \
+ build/prefab/windows-server/release/ballisticacore_server.py
+
+prefab-windows-server-release-build: prereqs \
+ assets-windows-${PREFAB_WINDOWS_PLATFORM} \
+ build/prefab/windows-server/release/dist/ballisticacore_headless.exe \
+ build/prefab/windows-server/release/launch_ballisticacore_server.bat \
+ build/prefab/windows-server/release/ballisticacore_server.py \
+ build/prefab/windows-server/release/config_template.yaml
+	@${STAGE_ASSETS} -win-$(PREFAB_WINDOWS_PLATFORM) \
+ build/prefab/windows-server/release/dist
+
+build/prefab/windows-server/release/dist/ballisticacore_headless.exe: .efrocachemap
+	@tools/snippets efrocache_get $@
+
+build/prefab/windows-server/release/ballisticacore_server.py: \
+ assets/src/server/server.py
+	cp $< $@
+
+build/prefab/windows-server/release/launch_ballisticacore_server.bat: \
+ assets/src/server/server.bat
+	cp $< $@
+
+build/prefab/windows-server/release/config_template.yaml: \
+ assets/src/server/config.yaml
+	cp $< $@
+
 # Tell make which of these targets don't represent files.
 .PHONY: prefab-debug prefab-debug-build prefab-release prefab-release-build \
- prefab-mac-debug prefab-mac-debug-build prefab-mac-release \
- prefab-mac-release-build prefab-linux-debug prefab-linux-debug-build \
- prefab-linux-release prefab-linux-release-build prefab-windows-debug \
- prefab-windows-debug-build prefab-windows-release prefab-windows-release-build
+ prefab-server-debug prefab-server-debug-build prefab-server-release \
+ prefab-server-release-build prefab-mac-debug prefab-mac-debug-build \
+ prefab-mac-release prefab-mac-release-build prefab-mac-server-debug \
+ prefab-mac-server-debug-build prefab-mac-server-release \
+ prefab-mac-server-release-build prefab-linux-debug prefab-linux-debug-build \
+ prefab-linux-release prefab-linux-release-build prefab-linux-server-debug \
+ prefab-linux-server-debug-build prefab-linux-server-release \
+ prefab-linux-server-release-build prefab-windows-debug \
+ prefab-windows-debug-build prefab-windows-release \
+ prefab-windows-release-build prefab-windows-server-debug \
+ prefab-windows-server-debug-build prefab-windows-server-release \
+ prefab-windows-server-release-build
 
 
 ################################################################################
diff --git a/assets/src/ba_data/python/_ba.py b/assets/src/ba_data/python/_ba.py
index 1a5a84bc..e6a69c3c 100644
--- a/assets/src/ba_data/python/_ba.py
+++ b/assets/src/ba_data/python/_ba.py
@@ -34,7 +34,7 @@ NOTE: This file was autogenerated by gendummymodule; do not edit by hand.
 """
 
 # (hash we can use to see if this file is out of date)
-# SOURCES_HASH=244170618255470168722716236009566191217
+# SOURCES_HASH=163268159341929947935319762789060730391
 
 # I'm sorry Pylint. I know this file saddens you. Be strong.
 # pylint: disable=useless-suppression
diff --git a/assets/src/ba_data/python/ba/_app.py b/assets/src/ba_data/python/ba/_app.py
index 0a2898ce..6fedc456 100644
--- a/assets/src/ba_data/python/ba/_app.py
+++ b/assets/src/ba_data/python/ba/_app.py
@@ -313,6 +313,8 @@ class App:
         assert isinstance(self.toolbar_test, bool)
         self.kiosk_mode: bool = env['kiosk_mode']
         assert isinstance(self.kiosk_mode, bool)
+        self.headless_build: bool = env['headless_build']
+        assert isinstance(self.headless_build, bool)
 
         # Misc.
         self.default_language = self._get_default_language()
@@ -350,6 +352,7 @@ class App:
         self.server_config_dirty = False
         self.run_server_wait_timer: Optional[ba.Timer] = None
         self.server_playlist_fetch: Optional[Dict[str, Any]] = None
+        self.next_server_account_warn_time: Optional[float] = None
         self.launched_server = False
         self.run_server_first_run = True
 
@@ -606,7 +609,7 @@ class App:
                 self.special_offer = config['pendingSpecialOffer']['o']
                 specialoffer.show_offer()
 
-        if self.subplatform != 'headless':
+        if not self.headless_build:
             _ba.timer(3.0, check_special_offer, timetype=TimeType.REAL)
 
         # Start scanning for things exposed via ba_meta.
@@ -614,7 +617,7 @@ class App:
 
         # Auto-sign-in to a local account in a moment if we're set to.
         def do_auto_sign_in() -> None:
-            if self.subplatform == 'headless':
+            if self.headless_build:
                 _ba.sign_in('Local')
             elif cfg.get('Auto Account State') == 'Local':
                 _ba.sign_in('Local')
diff --git a/assets/src/ba_data/python/ba/_map.py b/assets/src/ba_data/python/ba/_map.py
index 2bfdf8cb..61f1e32d 100644
--- a/assets/src/ba_data/python/ba/_map.py
+++ b/assets/src/ba_data/python/ba/_map.py
@@ -126,7 +126,7 @@ def get_unowned_maps() -> List[str]:
     """
     from ba import _store
     unowned_maps: Set[str] = set()
-    if _ba.app.subplatform != 'headless':
+    if not _ba.app.headless_build:
         for map_section in _store.get_store_layout()['maps']:
             for mapitem in map_section['items']:
                 if not _ba.get_purchased(mapitem):
diff --git a/assets/src/ba_data/python/ba/_meta.py b/assets/src/ba_data/python/ba/_meta.py
index 618e131e..e4f281fe 100644
--- a/assets/src/ba_data/python/ba/_meta.py
+++ b/assets/src/ba_data/python/ba/_meta.py
@@ -351,7 +351,7 @@ def get_unowned_game_types() -> Set[Type[ba.GameActivity]]:
     try:
         from ba import _store
         unowned_games: Set[Type[ba.GameActivity]] = set()
-        if _ba.app.subplatform != 'headless':
+        if not _ba.app.headless_build:
             for section in _store.get_store_layout()['minigames']:
                 for mname in section['items']:
                     if not _ba.get_purchased(mname):
diff --git a/assets/src/ba_data/python/ba/_server.py b/assets/src/ba_data/python/ba/_server.py
index 0a72caa9..886cdc01 100644
--- a/assets/src/ba_data/python/ba/_server.py
+++ b/assets/src/ba_data/python/ba/_server.py
@@ -67,12 +67,22 @@ def config_server(config_file: str = None) -> None:
     # Launch the server only the first time through;
     # after that it will be self-sustaining.
     if not app.launched_server:
+        app.next_server_account_warn_time = time.time() + 10.0
 
         # Now sit around until we're signed in and then kick off the server.
         with _ba.Context('ui'):
 
             def do_it() -> None:
-                if _ba.get_account_state() == 'signed_in':
+
+                signed_in = _ba.get_account_state() == 'signed_in'
+
+                if not signed_in:
+                    curtime = time.time()
+                    assert app.next_server_account_warn_time is not None
+                    if curtime > app.next_server_account_warn_time:
+                        print('Still waiting for account sign-in...')
+                        app.next_server_account_warn_time = curtime + 10.0
+                else:
                     can_launch = False
 
                     # If we're trying to fetch a playlist, we do that first.
@@ -165,7 +175,7 @@ def launch_server_session() -> None:
 
     if app.run_server_first_run:
         print((('BallisticaCore headless '
-                if app.subplatform == 'headless' else 'BallisticaCore ') +
+                if app.headless_build else 'BallisticaCore ') +
                str(app.version) + ' (' + str(app.build_number) +
                ') entering server-mode ' + time.strftime('%c')))
 
diff --git a/assets/src/server/server.bat b/assets/src/server/server.bat
index 845b0f97..134ebd52 100644
--- a/assets/src/server/server.bat
+++ b/assets/src/server/server.bat
@@ -1,2 +1,2 @@
 :: All this does is run the ballisticacore_server script with the included python interpreter
-python.exe ballisticacore_server.py
+dist\\python.exe ballisticacore_server.py
diff --git a/assets/src/server/server.py b/assets/src/server/server.py
index 1c98af84..925bb42e 100755
--- a/assets/src/server/server.py
+++ b/assets/src/server/server.py
@@ -193,23 +193,23 @@ def _run_server_cycle(binary_path: str, config: Dict[str, Any],
     # Most of our config values we can feed to ballisticacore as it is running
     # (see below). However certain things such as network-port need to be
     # present in the config file at launch, so let's write that out first.
-    if not os.path.exists('bacfg'):
-        os.mkdir('bacfg')
-    if os.path.exists('bacfg/config.json'):
-        with open('bacfg/config.json') as infile:
-            bacfg = json.loads(infile.read())
+    if not os.path.exists('ba_root'):
+        os.mkdir('ba_root')
+    if os.path.exists('ba_root/config.json'):
+        with open('ba_root/config.json') as infile:
+            ba_root = json.loads(infile.read())
     else:
-        bacfg = {}
-    bacfg['Port'] = config['port']
-    bacfg['Enable Telnet'] = config['enable_telnet']
-    bacfg['Telnet Port'] = config['telnet_port']
-    bacfg['Telnet Password'] = config['telnet_password']
-    with open('bacfg/config.json', 'w') as outfile:
-        outfile.write(json.dumps(bacfg))
+        ba_root = {}
+    ba_root['Port'] = config['port']
+    ba_root['Enable Telnet'] = config['enable_telnet']
+    ba_root['Telnet Port'] = config['telnet_port']
+    ba_root['Telnet Password'] = config['telnet_password']
+    with open('ba_root/config.json', 'w') as outfile:
+        outfile.write(json.dumps(ba_root))
 
     # Launch our binary and grab its stdin; we'll use this to feed
     # it commands.
-    process = subprocess.Popen([binary_path, '-cfgdir', 'bacfg'],
+    process = subprocess.Popen([binary_path, '-cfgdir', 'ba_root'],
                                stdin=subprocess.PIPE)
 
     # Set quit to True any time after launching the server to gracefully
diff --git a/docs/ba_module.md b/docs/ba_module.md
index d16085b0..70913ba2 100644
--- a/docs/ba_module.md
+++ b/docs/ba_module.md
@@ -1,5 +1,5 @@
 <!-- THIS FILE IS AUTO GENERATED; DO NOT EDIT BY HAND -->
-<h4><em>last updated on 2020-04-20 for Ballistica version 1.5.0 build 20001</em></h4>
+<h4><em>last updated on 2020-04-21 for Ballistica version 1.5.0 build 20001</em></h4>
 <p>This page documents the Python classes and functions in the 'ba' module,
  which are the ones most relevant to modding in Ballistica. If you come across something you feel should be included here or could be better explained, please <a href="mailto:support@froemling.net">let me know</a>. Happy modding!</p>
 <hr>