diff --git a/code/grime/arena_fixed.odin b/code/grime/arena_fixed.odin
new file mode 100644
index 0000000..e69de29
diff --git a/code/grime/arena_vchaining.odin b/code/grime/arena_vchaining.odin
new file mode 100644
index 0000000..e69de29
diff --git a/code/grime/linked_list.odin b/code/grime/linked_list.odin
index fa17d37..f2989f3 100644
--- a/code/grime/linked_list.odin
+++ b/code/grime/linked_list.odin
@@ -47,7 +47,7 @@ DLL_NodePN :: struct ( $ Type : typeid ) {
 	prev, next : ^Type,
 }
 DLL_NodeFL :: struct ( $ Type : typeid ) {
-first, last : ^Type,
+	first, last : ^Type,
 }
 DLL_NodeBT :: struct ($Type: typeid) {
 	bottom, top: ^Type,
diff --git a/code/grime/pool_allocator.odin b/code/grime/pool_backed.odin
similarity index 100%
rename from code/grime/pool_allocator.odin
rename to code/grime/pool_backed.odin
diff --git a/code/grime/pool_virtual.odin b/code/grime/pool_virtual.odin
new file mode 100644
index 0000000..e69de29
diff --git a/code/grime/profiler.odin b/code/grime/profiler.odin
index 2fcc5f7..e576317 100644
--- a/code/grime/profiler.odin
+++ b/code/grime/profiler.odin
@@ -1,5 +1,9 @@
 package grime
 
+/*
+This is just a snippet file, do not use directly.
+*/
+
 import "base:runtime"
 import "core:prof/spall"
 
@@ -8,26 +12,30 @@ SpallProfiler :: struct {
 	buffer  : spall.Buffer,
 }
 
-@(private)
-Module_Context : ^SpallProfiler
+// The rest is a snippet to implement in the target codebase.
+when false 
+{
+	@(private)
+	Module_Context : ^SpallProfiler
 
-set_profiler_module_context :: #force_inline proc "contextless" ( ctx : ^SpallProfiler ) {
-	Module_Context = ctx
-}
+	set_profiler_module_context :: #force_inline proc "contextless" ( ctx : ^SpallProfiler ) {
+		Module_Context = ctx
+	}
 
-DISABLE_PROFILING :: true
+	DISABLE_PROFILING :: true
 
-@(deferred_none = profile_end, disabled = DISABLE_PROFILING)
-profile :: #force_inline proc "contextless" ( name : string, loc := #caller_location ) {
-	spall._buffer_begin( & Module_Context.ctx, & Module_Context.buffer, name, "", loc )
-}
+	@(deferred_none = profile_end, disabled = DISABLE_PROFILING)
+	profile :: #force_inline proc "contextless" ( name : string, loc := #caller_location ) {
+		spall._buffer_begin( & Module_Context.ctx, & Module_Context.buffer, name, "", loc )
+	}
 
-@(disabled = DISABLE_PROFILING)
-profile_begin :: #force_inline proc "contextless" ( name : string, loc := #caller_location ) {
-	spall._buffer_begin( & Module_Context.ctx, & Module_Context.buffer, name, "", loc )
-}
+	@(disabled = DISABLE_PROFILING)
+	profile_begin :: #force_inline proc "contextless" ( name : string, loc := #caller_location ) {
+		spall._buffer_begin( & Module_Context.ctx, & Module_Context.buffer, name, "", loc )
+	}
 
-@(disabled = DISABLE_PROFILING)
-profile_end :: #force_inline proc "contextless" () {
-	spall._buffer_end( & Module_Context.ctx, & Module_Context.buffer)
-}
+	@(disabled = DISABLE_PROFILING)
+	profile_end :: #force_inline proc "contextless" () {
+		spall._buffer_end( & Module_Context.ctx, & Module_Context.buffer)
+	}
+}
\ No newline at end of file
diff --git a/code/grime/ptr.odin b/code/grime/unused/.ptr.odin
similarity index 100%
rename from code/grime/ptr.odin
rename to code/grime/unused/.ptr.odin
diff --git a/code/grime/.ring_buffer.odin b/code/grime/unused/.ring_buffer.odin
similarity index 100%
rename from code/grime/.ring_buffer.odin
rename to code/grime/unused/.ring_buffer.odin
diff --git a/code/host/host.odin b/code/host/host.odin
index 4af76c8..db3dff7 100644
--- a/code/host/host.odin
+++ b/code/host/host.odin
@@ -10,7 +10,7 @@ Currently the prototype has hot-reload always enabled, eventually there will be
 */
 package sectr_host
 
-//region Grime & Dependencies
+//region pkg_mappings
 import "base:runtime"
 	Byte     :: runtime.Byte
 	Kilobyte :: runtime.Kilobyte
@@ -88,7 +88,7 @@ file_status :: proc {
 to_str :: proc {
 	builder_to_string,
 }
-//endregion Grime & Dependencies
+//endregion pkg_mappings
 
 Path_Snapshot :: "VMemChunk_1.snapshot"
 Path_Logs     :: "../logs"
@@ -111,6 +111,9 @@ RuntimeState :: struct {
 	job_system: JobSystemContext,
 }
 
+@thread_local 
+worker_thread: sectr.ThreadWorkerContext
+
 ClientMemory :: struct {
 	persistent        : VArena,
 	frame             : VArena,
diff --git a/code/host/readme.md b/code/host/readme.md
new file mode 100644
index 0000000..1d14f01
--- /dev/null
+++ b/code/host/readme.md
@@ -0,0 +1,5 @@
+# Host: OS Sandbox Manager
+
+The host is the final downstream module and is responsible for handling the launch of application, its persistent memory tracking, and the multi-threaded job system including its worker threads.  
+For debug builds the host supports hot-reloading the client module (Sectr).  
+Maxmimum orchestration is designated to the client module, which only defers launch and the initial job setup to the Host.
diff --git a/code/sectr/app/app.odin b/code/sectr/app/app.odin
new file mode 100644
index 0000000..98633f0
--- /dev/null
+++ b/code/sectr/app/app.odin
@@ -0,0 +1,2 @@
+package sectr
+
diff --git a/code/sectr/app/readme.md b/code/sectr/app/readme.md
new file mode 100644
index 0000000..4fb861b
--- /dev/null
+++ b/code/sectr/app/readme.md
@@ -0,0 +1,4 @@
+# App: Application Orchestration
+
+The user-level features are managed here down-stream of engine orchestration.  
+For this prototype these involve mainly the screen UI, the project workspace UIs, and the codebase backend.
diff --git a/code/sectr/engine/engine.odin b/code/sectr/engine/engine.odin
new file mode 100644
index 0000000..e69de29
diff --git a/code/sectr/engine/job_system.odin b/code/sectr/engine/job_system.odin
index 3cc73ce..bb7f94e 100644
--- a/code/sectr/engine/job_system.odin
+++ b/code/sectr/engine/job_system.odin
@@ -23,6 +23,7 @@ Job :: struct {
 	group:   ^JobGroup,
 	ignored: IgnoredThreads,
 	dbg_lbl: string,
+	// scratch: CArena,
 }
 
 JobList :: struct {
@@ -44,6 +45,161 @@ ThreadWorkerContext :: struct {
 	index:      int,
 }
 
+WorkerID :: enum u32 {
+	Master_Prepper = 0,
+	
+	API_Apologist,
+	Artifical_Sweetener,
+	Assertion_Avenger,
+	Async_Antagonist,
+	Atomic_Accountant,
+	Black_Box_Provider,
+	Bit_Rot_Repacker,
+	Big_O_Admirer,
+	Blitting_Bandit,
+	Blockchain_Believer,
+	Blue_Caller,
+	Blue_Screen_Shopper,
+	Branch_Mispredictor,
+	Breakpoint_Bandit,
+	Buffer_Baron,
+	Cache_Concierge,
+	Cafecito_Barista,
+	Callback_Operator,
+	Callstack_Canopy,
+	Carpe_Datum,
+	Chief_Synergy_Officer,
+	Cipher_Clerk,
+	Conscripted_Camper,
+	Dean_Of_Misplaced_Delegation,
+	Dereference_Doctorate,
+	Checkbox_Boi,
+	Credible_Threat,
+	Dead_Drop_Delegate,
+	Deadline_Denialist,
+	Deadlock_Daemon,
+	DMA_Desperado,
+	Dump_Curator,
+	Edge_Case_Evangelist,
+	Enterprise_Entangler,
+	Exception_Excavator,
+	Git_Blame_Archaeologist,
+	Feature_Creeper,
+	Feature_Freeze_Fighter,
+	Fencepost_Fiddler,
+	Fitness_Unpacker,
+	Flop_Flipper,
+	Floating_Point_Propoganda,
+	Forgets_To_Check,
+	Global_Guardian,
+	Goto_Goon,
+	Ghost_Protocols,
+	Halting_Solver,
+	Handshake_Hypeman,
+	Headcount_Hoarder,
+	Heisenbug_Hunter,
+	Heuristic_Hypnotist,
+	Hotfix_Hooligan,
+	Hot_Path_Hitchhiker,
+	Idle_Malware,
+	Implementation_Detailer,
+	Interrupt_Ignorer,
+	Interrupt_Insurgent,
+	Jank_Jockey,
+	Jefe_De_Errores,
+	Kickoff_Holiday,
+	Kilobyte_Kingpin,
+	KPI_Keeper,
+	Latency_Lover,
+	Leeroy_Jenkins,
+	Legacy_Liaison,
+	Loop_Lobbyist,
+	Linter_Lamenter,
+	Lock_Free_Liar,
+	Low_Hanging_Fruit_Picker,
+	Malloc_Maverick,
+	Malpractice_Mitigator,
+	Merge_Conflict_Mediator,
+	Memory_Mangler,
+	Mañana_Manager,
+	Minimum_Wage_Multiplexer,
+	Monad_Masquerader,
+	NaN_Propagator,
+	NDA_Negotiator,
+	Null_Pointer_Enthusiast,
+	Off_By_One_Offender,
+	On_Call_Intern,
+	Onboarding_Overlord,
+	Overflow_Investor,
+	Out_Of_Bounds_Outlaw,
+	Page_Fault_Pioneer,
+	Panic_As_A_Service,
+	Paradigm_Pivoter,
+	Patient_Zero_Pollinator,
+	Payload_Plunderer,
+	Perpetual_Peon,
+	Phishing_Pharmacist,
+	Pipeline_Plumber,
+	Pointer_Pilgrim,
+	Production_Pusher,
+	Quiet_Quitter,
+	Query_Gremlin,
+	Race_Condition_Gambler,
+	Rebase_Renegade,
+	Red_Tape_Renderer,
+	Resting_Receptionist,
+	Quantum_Quibbler,
+	Regex_Rancher,
+	Register_Riveter,
+	Register_Spill_Rancher,
+	Roadmap_Revisionist,
+	Rootkit_Realtor,
+	Runtime_Ruffian,
+	Sabbatical_Scheduler,
+	Shift_Manager,
+	Speculative_Skeptic,
+	Segfault_Stretcher,
+	Siesta_Scheduler,
+	Singleton_Sinner,
+	Sleeper_Cell_Spammer,
+	Spaghetti_Chef,
+	Spinlock_Spelunker,
+	Stack_Smuggler,
+	Stakeholder_Simulator,
+	TCP_Tango,
+	Techdebt_Treasurer,
+	Tenured_Trapper,
+	Thread_Local_Tourist,
+	Triage_Technician,
+	Tunnel_Fisherman,
+	Type_Theorist,
+	UDP_Unicycle,
+	Unattended_Child,
+	Undefined_Behavior_Brokerage,
+	Unreachable_Utopian,
+	Unicode_Usurper,
+	Unsafe_Advocate,
+	Unsigned_Vigilante,
+	Unwind_Understudy,
+	Voltage_Vampire,
+	Vibe_Checker,
+	Virtual_Vagrant,
+	Volatile_Vandal,
+	Void_Voyager,
+	Waiting_Room_Warden,
+	Weltschmerz_Worker,
+	While_True_Wanderer,
+	Write_Barrier_Warden,
+	XORcist,
+	YAGNI_Yeller,
+	Yellowpage_Dialer,	
+	Zeroring_Comissioner,
+	Zero_Cost_Commando,
+	Zero_Day_Dreamer,
+	Zombie_Zookeeper,
+	Zombo_Vistor,
+}
+
 // Hard constraint for Windows
 JOB_SYSTEM_MAX_WORKER_THREADS :: 64
 
diff --git a/code/sectr/engine/profiler.odin b/code/sectr/engine/profiler.odin
new file mode 100644
index 0000000..7ba6dc6
--- /dev/null
+++ b/code/sectr/engine/profiler.odin
@@ -0,0 +1,3 @@
+package sectr
+
+
diff --git a/code/sectr/engine/readme.md b/code/sectr/engine/readme.md
new file mode 100644
index 0000000..7f72bd4
--- /dev/null
+++ b/code/sectr/engine/readme.md
@@ -0,0 +1,3 @@
+# Engine: Technical Orchestration
+
+All aspects of technical operations are handled as conceptually the engine of the application. 
\ No newline at end of file
diff --git a/code/sectr/app/state.odin b/code/sectr/engine/state.odin
similarity index 100%
rename from code/sectr/app/state.odin
rename to code/sectr/engine/state.odin
diff --git a/code/sectr/grime/pkg_mappings.odin b/code/sectr/grime/pkg_mappings.odin
index ef26aac..4520615 100644
--- a/code/sectr/grime/pkg_mappings.odin
+++ b/code/sectr/grime/pkg_mappings.odin
@@ -327,6 +327,7 @@ import "codebase:grime"
 
 	to_str_runes_pair_via_string :: grime.to_str_runes_pair_via_string
 	to_str_runes_pair_via_runes  :: grime.to_str_runes_pair_via_runes
+
 	// profiler
 	SpallProfiler :: grime.SpallProfiler