perf(server): 1.0.2 ship ALL optimization configs tuned for YOUR VPS only

- Ship all needed configs as Packwiz overrides so they persist on VPS (not overwritten on restart unless data/config wiped)
- Add server_pack/config/lithium.properties (empty = all Lithium 0.15.4 mixins ON, optimal)
- Add ferritecore.mixin.properties (safe memory ON, risky threading detector OFF)
- Add c2me.toml (default auto-tune expression for YOUR cpus/mem, from local)
- Add packetfixer.properties (explicit sane limits, allSizesUnlimited=false, not unlimited)
- Add spark/config.json (backgroundProfiler true)
- Already shipped: chunksmith 45ms, alternate-current, modernfix-mixins, c2me-notes
- MRPACK now 16 overrides/config (was 11), validated 144 mods, AUDIT PASS, drift LOCAL=PACKWIZ in-sync
- Tuned for single-owner VPS only, idc about others per request
- Packwiz is source of truth; configs won't be overwritten on server run (they are read, not regenerated if present)

optimization-manifest.json

@@ -7,13 +7,13 @@
   "fabric_api_version_id": "Nlt8gI9z",
   "pack": {
     "name": "F##KRPG - Server",
-    "version": "1.0.1",
+    "version": "1.0.2",
     "pack_format": "packwiz:1.1.0",
     "packwiz_version": "unknown (binary /usr/bin/packwiz 2026-08-19)",
     "packwiz_revision": "14b5dc3",
-    "index_hash": "adccf3bb09cf02c5da9f414777ae8c3a80125aa863f318ff729b787b5137b4f2",
+    "index_hash": "197e07b81a8da5878770d43e825affe72fd37fa92c642e7d362732cfeeeddfbe",
     "index_hash_format": "sha256",
-    "generated_at": "2026-08-27T04:59:05Z",
+    "generated_at": "2026-08-27T05:10:10Z",
     "git_revision": "14b5dc363c6cfd0967e09c2e60e77a1dcbe81685",
     "git_short": "14b5dc3"
   },
@@ -402,6 +402,6 @@
     "last_benchmark": null,
     "notes": "Run fish tools/benchmark.fish after local test; baseline.json will populate here"
   },
-  "last_audit": "2026-08-27T04:59:05Z",
-  "notes": "Source of truth is Packwiz project (server_pack/). Installed mods on servers are NOT source of truth. Continents version mismatch flagged for fix in 1.0.1."
+  "last_audit": "2026-08-27T05:10:10Z",
+  "notes": "1.0.2: Ship ALL optimization configs as Packwiz overrides (lithium, ferritecore, c2me.toml, packetfixer, spark) tuned for YOUR VPS only; they persist in data/config and are not overwritten on restart unless data/config wiped."
 }

server_pack/config/c2me.toml

@@ -0,0 +1,198 @@
+version = 3
+# (Default: 
+#    max(
+#        1,
+#        min(
+#            if( is_windows,
+#                (cpus / 1.6),
+#                (cpus / 1.3)
+#            )  - if(is_client, 1, 0),
+#            ( ( mem_gb - (if(is_client, 1.0, 0.5)) ) / 0.6 )
+#        )
+#    )
+# )  
+#  The expression for the default value of global executor parallelism. 
+#  This is used when the parallelism isn't overridden.
+#  Available variables: is_windows, is_j9vm, is_client, cpus, mem_gb
+# 
+defaultGlobalExecutorParallelismExpression = "default"
+# (Default: 4) Sets the thread priority for worker threads
+# 
+# References:
+# - https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Thread.html#setPriority(int)
+# 
+threadPoolPriority = "default"
+# (Default: 9) Configures the parallelism of global executor
+globalExecutorParallelism = "default"
+
+[fixes]
+	# (Default: true)  
+	#  Whether to disable the shutdown hook of log4j2 on dedicated servers.
+	#  Enabling this also makes the JVM exit when the dedicated server is considered fully shut down.
+	#  This option have no effect on client-side.
+	#  We has historically been doing this, and this config option allows you to disable this behavior.
+	# 
+	disableLoggingShutdownHook = "default"
+	# (Default: true) Enforces safe world random access.  
+	# This feature detects unsafe off-thread world random access, helping to find the causes  
+	# of mysterious "Accessing LegacyRandomSource from multiple threads" crash.  
+	# The default behavior is to fail hard when such bad things happens.  
+	# Disabling this option will replace this behavior with a warning.  
+	# 
+	# It is generally not recommended to disable this settings unless you know what you are doing  
+	# 
+	# 
+	enforceSafeWorldRandomAccess = "default"
+
+[noTickViewDistance]
+	# (Default: 27) No-tick view distance max concurrent chunk loads 
+	#  Lower this for a better latency and higher this for a faster loading
+	maxConcurrentChunkLoads = "default"
+	# (Default: true) Enable server-side support for extended render distance protocol (c2me:ext_render_distance_v1)
+	# This allows requesting render distances higher than 127 chunks from the server
+	# 
+	# Requires Fabric API (currently available)
+	# 
+	enableExtRenderDistanceProtocol = "default"
+	# (Default: false) Whether to ensure correct chunks within normal render distance 
+	#  This will send chunks twice increasing network load
+	ensureChunkCorrectness = "default"
+	# (Default: 200) Applies a multiplier *in percentage* to the target chunk sending rate from vanilla
+	# Setting this to 0 disables rate limiting
+	# 
+	# Defaults to 200, which is 200%
+	# 
+	chunkSendingSpeedMultiplierPercentage = "default"
+
+[ioSystem]
+	# (Default: 8192) Soft limit for io worker nbt cache
+	chunkDataCacheSoftLimit = "default"
+	# (Default: 32678) Hard limit for io worker nbt cache
+	chunkDataCacheLimit = "default"
+	# (Default: true) Whether to use the optimized implementation of IO system
+	replaceImpl = "default"
+
+[vanillaWorldGenOptimizations]
+	# (Default: true) Whether to use density function compiler to accelerate world generation
+	# 
+	# Density function: https://minecraft.wiki/w/Density_function
+	# 
+	# This functionality compiles density functions from world generation
+	# datapacks (including vanilla generation) to JVM bytecode to increase
+	# performance by allowing JVM JIT to better optimize the code
+	# 
+	# Currently, all functions provided by vanilla are implemented.
+	# Chunk upgrades from pre-1.18 versions are not implemented and will
+	# fall back to the unoptimized version of density functions.
+	# 
+	useDensityFunctionCompiler = "default"
+	# (Default: true) Enables the built-in integrations with other worldgen mods in density function compiler.
+	# 
+	# Depends on vanillaWorldGenOptimizations.useDensityFunctionCompiler
+	# 
+	enableBuiltinDFCIntegrations = "default"
+	# (Default: true) Whether to enable aquifer optimizations to accelerate overworld worldgen
+	# (may cause incompatibility with other mods)
+	optimizeAquifer = "default"
+	# (Default: true) Whether to enable End Biome Cache to accelerate The End worldgen 
+	# This is no longer included in lithium-fabric 
+	# (may cause incompatibility with other mods)
+	# 
+	useEndBiomeCache = "default"
+	# (Default: true) Whether to enable StructureWeightSampler optimizations to accelerate world generation
+	# 
+	optimizeStructureWeightSampler = "default"
+
+[generalOptimizations]
+	# (Default: 100000) The task interval of mid-tick chunk tasks in nanoseconds (-1 to disable)  
+	# Mid-tick chunk tasks is to execute chunk tasks during server tick loop  
+	# to speed up chunk loading and generation  
+	# This helps chunks loading and generating under high MSPT but may raise  
+	# MSPT when chunks are loading or generating  
+	#  
+	# It is generally not recommended to adjust this value unless you know  
+	# what you are doing  
+	#  
+	# Incompatible with Dimensional Threading (dimthread)
+	# 
+	midTickChunkTasksInterval = "default"
+
+	[generalOptimizations.autoSave]
+		# (Default: ENHANCED) Defines how auto save should be handled  
+		# VANILLA: Use vanilla auto-save behavior (auto-save performed every tick during ticking)  
+		# ENHANCED: Use C2ME enhanced auto-save (auto-save performed when the server have spare time after ticking)  
+		# PERIODIC: Use pre-1.18 vanilla auto-save behavior (auto-save performed every 6000 ticks during ticking)  
+		#  
+		# Please preserve quotes so this config don't break
+		# 
+		mode = "default"
+
+[chunkSystem]
+	# (Default: true) Whether to enable async serialization
+	# 
+	asyncSerialization = "default"
+	# (Default: false) Whether to recover from errors when loading chunks 
+	#  This will cause errored chunk to be regenerated entirely, which may cause data loss 
+	#  Only applies when async chunk loading is enabled
+	# 
+	recoverFromErrors = "default"
+	# (Default: true) Whether to allow POIs (Point of Interest) to be unloaded
+	# Unloaded POIs are reloaded on-demand or when the corresponding chunks are loaded again,
+	# which should not cause any behavior change
+	#  
+	# Note:
+	# Vanilla never unloads POIs when chunks unload, causing small memory leaks
+	# These leaks adds up and eventually cause issues after generating millions of chunks
+	# in a single world instance
+	# 
+	allowPOIUnloading = "default"
+	# (Default: true) This option workarounds MC-276863, a bug that makes mushrooms appear in non-postprocessed chunks
+	# This bug is amplified with notickvd as it exposes non-postprocessed chunks to players
+	# 
+	# This should not affect other worldgen behavior and game mechanics in general
+	# 
+	suppressGhostMushrooms = "default"
+	# (Default: true) Whether to synchronize the management of player tickets
+	# 
+	# In vanilla Minecraft, player tickets are not always removed immediately when players leave an area.
+	# The delay in removal increases with the chunk system’s throughput, but due to vanilla’s typically
+	# slow chunk loading, tickets are almost always removed immediately. However, some contraptions rely
+	# on this immediate removal behavior and tend to be broken with the increased chunk throughput.
+	# Enabling this option synchronizes player ticket handling, making it more predictable and
+	# thus improving compatibility with these contraptions.
+	# 
+	syncPlayerTickets = "default"
+	# (Default: true) Whether to turn fluid postprocessing into scheduled tick
+	# 
+	# Fluid post-processing is very expensive when loading in new chunks, and this can affect
+	# MSPT significantly. This option delays fluid post-processing to scheduled tick to hopefully
+	# mitigate this issue.
+	# 
+	fluidPostProcessingToScheduledTick = "default"
+	# (Default: true) Whether to filter fluid post-processing on worldgen threads
+	# 
+	# The worldgen processes creates a lot of unnecessary fluid post-processing tasks,
+	# which can overload the server thread and cause stutters.
+	# This applies a rough filter to filter out fluids that are definitely not going to flow
+	# 
+	filterFluidPostProcessing = "default"
+	# (Default: false) Whether to use legacy scheduling for neighbor chunks
+	# 
+	# Enabling this restores the behavior of always loading in neighbor chunks when a chunk is loaded.
+	# 
+	# This is currently deprecated and will be removed in the future.
+	# 
+	useLegacyScheduling = "default"
+	# (Default: false) Whether to enable low memory mode
+	# 
+	# This option will attempt to aggressively unload unused chunks.
+	# Only applies when useLegacyScheduling is disabled.
+	# 
+	lowMemoryMode = "default"
+	# (Default: false) Whether to delay full chunk events to after full chunk future have been completed
+	# This restores the buggy behavior in NeoForge that the ecosystem have been relying on
+	# 
+	# Enabling this will almost certainly break vanilla behavior, disabled by default on fabric
+	# Do not change this unless you know what you are doing
+	# 
+	delayFullChunkEvents = "default"

server_pack/config/ferritecore.mixin.properties

@@ -0,0 +1,15 @@
+# FerriteCore 7.0.3 — FKRPG server memory (Fabric 1.21.1), tuned for YOUR VPS only
+# Safe memory optimizations ON, risky OFF
+# Keep replaceNeighborLookup true (big RAM save with Tectonic), keep experimental threading detector OFF
+replaceNeighborLookup = true
+replacePropertyMap = true
+cacheMultipartPredicates = true
+modelResourceLocations = true
+multipartDeduplication = true
+blockstateCacheDeduplication = true
+bakedQuadDeduplication = true
+modelSides = true
+dataComponentPatch = true
+useSmallThreadingDetector = false
+compactFastMap = false
+populateNeighborTable = false

server_pack/config/lithium.properties

@@ -0,0 +1,4 @@
+# Lithium 0.15.4 — FKRPG tuned for single-owner VPS (1.21.1 Fabric)
+# https://github.com/CaffeineMC/lithium-fabric/wiki/Configuration-File
+# Keep defaults optimal — all mixins enabled. Only disable if proven incompat with SpellEngine/Origins.
+# Empty file = all optimizations ON (server thread perf, low MSPT). Do not add =false lines unless testing.

server_pack/config/packetfixer.properties

@@ -0,0 +1,15 @@
+# PacketFixer 3.3.1 — FKRPG tuned for YOUR VPS only (explicit sane values, no unlimited)
+# Do NOT use unlimited packet sizes as perf strategy — explicit limits prevent OOM/crash
+# Tuned for 1.21.1 Fabric with Krypton + ModernFix netty
+#Thu Aug 27 01:03:48 EDT 2026 (tuned 2026-08-27)
+allSizesUnlimited=false
+chunkPacketData=2097152
+decoderSize=8388608
+forceUnlimitedNbtEnabled=false
+nbtMaxSize=2097152
+packetSize=1048576
+stringSize=32767
+timeout=120
+varInt=5
+varInt21=3
+varLong=10

server_pack/config/spark/config.json

@@ -0,0 +1,4 @@
+{
+  "_header": "spark configuration file - https://spark.lucko.me/docs/Configuration",
+  "backgroundProfiler": true
+}

server_pack/index.toml

@@ -8,6 +8,10 @@ hash = "02369f087a400c2bddfc6ef941642c2c665196931d276b6d300eab9cd7c24e58"
 file = "config/c2me-notes.txt"
 hash = "c0ea51762b40e71ec2940e48a6b6d48316bd3197f112e9af929ada44bf51245a"
 
+[[files]]
+file = "config/c2me.toml"
+hash = "39c156fb02607f7b57047e4301916f0958a4e4442f62f69088ce5d3b5c26b48f"
+
 [[files]]
 file = "config/chunksmith/config.json"
 hash = "2090bf70f26b035d4485dcf5898a67dded727b0344d6ae881a29816f2dea0395"
@@ -16,6 +20,14 @@ hash = "2090bf70f26b035d4485dcf5898a67dded727b0344d6ae881a29816f2dea0395"
 file = "config/ctov.json"
 hash = "84e97a7cd95a32586f639c799ffd92c845f814717d241868bc46092f163513bc"
 
+[[files]]
+file = "config/ferritecore.mixin.properties"
+hash = "a6b37e9e19b425a20a5c09c34113d955b50f99c28bc3427c9c69fc4c666eafee"
+
+[[files]]
+file = "config/lithium.properties"
+hash = "0d103b7dcaf6f1ffd3459fcdc2208e2d6900f97be42927f9bc046221af7f8ef2"
+
 [[files]]
 file = "config/lithostitched.json"
 hash = "ff8e1f4466df85c1158a8864b26bf465503ccf689c4c5d49eb2d6348eb83576c"
@@ -24,6 +36,10 @@ hash = "ff8e1f4466df85c1158a8864b26bf465503ccf689c4c5d49eb2d6348eb83576c"
 file = "config/modernfix-mixins.properties"
 hash = "a2e16781240c722aa76eec17675b34b174f19c4298f79bb239f49e716d74cbab"
 
+[[files]]
+file = "config/packetfixer.properties"
+hash = "4bedddb3ea1d045fb9f2e833a543645b9b9be8795ccd4ad2834fcdf57550d0da"
+
 [[files]]
 file = "config/sereneseasons/fertility.toml"
 hash = "722f7545a5a592f0aed25ae8dd0a4f53f7abaf0bb53da96417d87e9096e75631"
@@ -32,6 +48,10 @@ hash = "722f7545a5a592f0aed25ae8dd0a4f53f7abaf0bb53da96417d87e9096e75631"
 file = "config/sereneseasons/seasons.toml"
 hash = "6a4eaef1ed68066a6ba9f2512cf87e868ca2d396db94b13bf76d5020bf58e12b"
 
+[[files]]
+file = "config/spark/config.json"
+hash = "992ba9f3a4a7ce3de112eb95575328956fdc3ce6781c455ebce7b23db7e7da42"
+
 [[files]]
 file = "config/tectonic.json"
 hash = "5c15a484ed96479d3b1b78ebad6c3cdf80f0410647dc725e142b70c7a1878e93"

server_pack/pack.toml

@@ -1,12 +1,12 @@
 name = "F##KRPG - Server"
 author = "mithral"
-version = "1.0.1"
+version = "1.0.2"
 pack-format = "packwiz:1.1.0"
 
 [index]
 file = "index.toml"
 hash-format = "sha256"
-hash = "adccf3bb09cf02c5da9f414777ae8c3a80125aa863f318ff729b787b5137b4f2"
+hash = "197e07b81a8da5878770d43e825affe72fd37fa92c642e7d362732cfeeeddfbe"
 
 [versions]
 fabric = "0.19.3"