diff --git a/code2/host/host.odin b/code2/host/host.odin
index 6b73072..da77958 100644
--- a/code2/host/host.odin
+++ b/code2/host/host.odin
@@ -22,10 +22,11 @@ main :: proc()
 	context.allocator      = arena_allocator(& host_scratch)
 	context.temp_allocator = context.allocator
 
-	thread_memory.index = .Master_Prepper
+	thread_memory.id = .Master_Prepper
 	thread_id := thread_current_id()
 	{
 		using thread_memory
+		system_ctx = & host_memory.threads[WorkerID.Master_Prepper]
 		system_ctx.creation_allocator = {}
 		system_ctx.procedure = master_prepper_proc
 		when ODIN_OS == .Windows {
@@ -50,31 +51,45 @@ main :: proc()
 			panic( "Failed to load the sectr module." )
 		}
 
-		startup    := cast( type_of( host_memory.client_api.startup   )) os_lib_get_proc(lib, "startup")
-		hot_reload := cast( type_of( host_memory.client_api.hot_reload)) os_lib_get_proc(lib, "hot_reload")
-		if startup    == nil do panic("Failed to load sectr.startup symbol" )
-		if hot_reload == nil do panic("Failed to load sectr.reload symbol" )
+		startup           := cast( type_of( host_memory.client_api.startup))           os_lib_get_proc(lib, "startup")
+		hot_reload        := cast( type_of( host_memory.client_api.hot_reload))        os_lib_get_proc(lib, "hot_reload")
+		tick_lane_startup := cast( type_of( host_memory.client_api.tick_lane_startup)) os_lib_get_proc(lib, "tick_lane_startup")
+		if startup           == nil do panic("Failed to load sectr.startup symbol" )
+		if hot_reload        == nil do panic("Failed to load sectr.hot_reload symbol" )
+		if tick_lane_startup == nil do panic("Failed to load sectr.tick_lane_startup symbol" )
 
-		host_memory.client_api.lib        = lib
-		host_memory.client_api.startup    = startup
-		host_memory.client_api.hot_reload = hot_reload
+		host_memory.client_api.lib               = lib
+		host_memory.client_api.startup           = startup
+		host_memory.client_api.hot_reload        = hot_reload
+		host_memory.client_api.tick_lane_startup = tick_lane_startup
 	}
-	host_memory.host_api.sync_client_module = sync_client_api
-	host_memory.host_api.launch_live_thread = launch_live_thread
+	host_memory.host_api.sync_client_module      = sync_client_api
+	host_memory.host_api.launch_tick_lane_thread = launch_tick_lane_thread
 	host_memory.client_api.startup(& host_memory, & thread_memory)
 }
 
 @export
-sync_client_api :: proc()
-{
+sync_client_api :: proc() {
+	assert_contextless(thread_memory.id == .Master_Prepper)
 	// Fill out detection and reloading of client api.
 
 	// Needs to flag and atomic to spin-lock live helepr threads when reloading
 }
 
+import "core:thread"
+
+
 @export
-launch_live_thread :: proc()
-{
-	// TODO(Ed): Prep the thread
-	host_memory.client_api.live_thread_startup(& thread_memory)
+launch_tick_lane_thread :: proc(id : WorkerID) {
+	assert_contextless(thread_memory.id == .Master_Prepper)
+	// TODO(Ed): We need to make our own version of this that doesn't allocate memory.
+	lane_thread := thread.create(host_tick_lane_startup, .High)
+	lane_thread.user_index = int(id)
+	thread.start(lane_thread)
+}
+
+host_tick_lane_startup :: proc(lane_thread: ^SysThread) {
+	thread_memory.system_ctx = lane_thread
+	thread_memory.id = cast(WorkerID) lane_thread.user_index
+	host_memory.client_api.tick_lane_startup(& thread_memory)
 }
diff --git a/code2/host/pkg_mappings.odin b/code2/host/pkg_mappings.odin
index 7e51812..2275d94 100644
--- a/code2/host/pkg_mappings.odin
+++ b/code2/host/pkg_mappings.odin
@@ -45,9 +45,11 @@ import grime "codebase:grime"
 	file_copy_sync :: grime.file_copy_sync
 
 import "codebase:sectr"
+	MAX_THREADS  :: sectr.MAX_THREADS
 	Client_API   :: sectr.ModuleAPI
 	HostMemory   :: sectr.HostMemory
 	ThreadMemory :: sectr.ThreadMemory
+	WorkerID     :: sectr.WorkerID
 
 Kilo :: 1024
 Mega :: Kilo * 1024
diff --git a/code2/sectr/engine/client_api.odin b/code2/sectr/engine/client_api.odin
index c0f5622..88aa3d0 100644
--- a/code2/sectr/engine/client_api.odin
+++ b/code2/sectr/engine/client_api.odin
@@ -28,29 +28,23 @@ startup :: proc(host_mem: ^HostMemory, thread_mem: ^ThreadMemory)
 
 	memory = host_mem
 
-	thread_wide_startup()
+	thread_wide_startup(thread_mem)
 }
 
-thread_wide_startup :: proc()
+thread_wide_startup :: proc(thread_mem: ^ThreadMemory)
 {
-	if thread_memory.id == .Master_Prepper
-	{
-		thread_memory.live_lanes = 
-
-		tick_lane_startup() //
+	if thread_mem.id == .Master_Prepper {
+		sync.barrier_init(& memory.client_api_sync_lock, THREAD_TICK_LANES)
 	}
-
-	// TODO(Ed): Spawn helper thraed, then prepp both live threads
-	memory.state.live_threads += 1; // Atomic_Accountant
-	memory.host_api.launch_live_thread()
+	memory.host_api.launch_tick_lane_thread(.Atomic_Accountant)
+	tick_lane_startup(thread_mem)
 }
 
 @export
 tick_lane_startup :: proc(thread_mem: ^ThreadMemory)
 {
-	memory.state.live_threads += 1
-	
-
+	thread_memory            = thread_mem
+	thread_memory.live_lanes = THREAD_TICK_LANES
 	tick_lane()
 }
 
@@ -60,11 +54,11 @@ tick_lane :: proc()
 	for ;;
 	{
 		dummy += 1
-		if thread_memory.index == .Master_Prepper
+		if thread_memory.id == .Master_Prepper
 		{
-			memory.host_api.sync_client_api()
+			memory.host_api.sync_client_module()
 		}
-		
+		leader := sync.barrier_wait(& memory.client_api_sync_lock)
 	}
 }
 
diff --git a/code2/sectr/engine/host_api.odin b/code2/sectr/engine/host_api.odin
index 5bdb952..8106f3f 100644
--- a/code2/sectr/engine/host_api.odin
+++ b/code2/sectr/engine/host_api.odin
@@ -5,15 +5,17 @@ import "core:sync"
 HostMemory :: struct {
 	host_scratch: [256 * Kilo]byte,
 
-	client_api_sync_lock: sync.Benaphore,
+	threads: [MAX_THREADS](SysThread),
 
-	client_api:     ModuleAPI,
-	client_memory: ^State,
-	host_api:       Host_API,
+	client_api_sync_lock: sync.Barrier,
+
+	client_api:    ModuleAPI,
+	client_memory: State,
+	host_api:      Host_API,
 }
 
 Host_API :: struct {
-	launch_live_thread: #type proc(),
+	launch_tick_lane_thread: #type proc(WorkerID),
 
 	request_virtual_memory: #type proc(),
 	request_virtual_mapped_io: #type proc(),
diff --git a/code2/sectr/engine/job_system.odin b/code2/sectr/engine/job_system.odin
index 4fdc28c..e32b950 100644
--- a/code2/sectr/engine/job_system.odin
+++ b/code2/sectr/engine/job_system.odin
@@ -41,7 +41,7 @@ JobSystemContext :: struct {
 }
 
 ThreadWorkerContext :: struct {
-	system_ctx: Thread,
+	system_ctx: ^SysThread,
 	id:         WorkerID,
 }
 
@@ -189,7 +189,7 @@ WorkerID :: enum int {
 }
 
 // Hard constraint for Windows
-JOB_SYSTEM_MAX_WORKER_THREADS :: 64
+MAX_THREADS :: 64
 
 /*
 Threads are setup upfront during the client API's startup.
diff --git a/code2/sectr/pkg_mappings.odin b/code2/sectr/pkg_mappings.odin
index 4625837..478112c 100644
--- a/code2/sectr/pkg_mappings.odin
+++ b/code2/sectr/pkg_mappings.odin
@@ -4,7 +4,7 @@ import "core:sync"
 	AtomicMutex :: sync.Atomic_Mutex
 
 import "core:thread"
-	Thread :: thread.Thread
+	SysThread :: thread.Thread
 
 Kilo :: 1024
 Mega :: Kilo * 1024
diff --git a/code2/sectr/state.odin b/code2/sectr/state.odin
index e3ab347..3f34d4a 100644
--- a/code2/sectr/state.odin
+++ b/code2/sectr/state.odin
@@ -9,6 +9,5 @@ thread_memory: ^ThreadMemory
 THREAD_TICK_LANES :: 2
 
 State :: struct {
-	live_threads: int,
 	job_system: JobSystemContext,
 }