generated from coulomb/repo-seed
tegwick
5b144b6b96
Some checks failed
Build and Deploy / build-push-deploy (push) Has been cancelled
Root cause: any module re-exporting all 119 IHP entities produces a .hi file ≥ 287 MB, crashing GHC 9.10.3 Data.Binary.Get at exactly position 287,686,318 — even after 4-way split (30 entities × 9.6 MB/entity = 287 MB). Fix: - 8-way split of Generated.Types (~15 entities each, ~144 MB .hi — safe) - Generated.Types replaced with empty stub, removed from exposed-modules (any re-export hub for 119 entities → ~1.1 GB .hi → crash downstream) - pname == "inter-hub-lib" postUnpack patches all 148 `import Generated.Types` lines to import Generated.TypesPart1 through TypesPart8 directly Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
226 lines
13 KiB
Nix
226 lines
13 KiB
Nix
{
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inputs = {
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ihp.url = "github:digitallyinduced/ihp/v1.5";
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nixpkgs.follows = "ihp/nixpkgs";
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nixpkgs-nixos.follows = "ihp/nixpkgs-nixos";
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flake-parts.follows = "ihp/flake-parts";
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devenv.follows = "ihp/devenv";
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systems.follows = "ihp/systems";
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devenv-root = {
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url = "file+file:///dev/null";
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flake = false;
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};
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};
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outputs = inputs@{ self, nixpkgs, nixpkgs-nixos, ihp, flake-parts, systems, ... }:
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flake-parts.lib.mkFlake { inherit inputs; } {
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systems = import systems;
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imports = [ ihp.flakeModules.default ];
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perSystem = { pkgs, config, lib, ... }: {
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ihp = {
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appName = "inter-hub";
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enable = true;
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projectPath = ./.;
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packages = with pkgs; [
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tailwindcss
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];
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haskellPackages = p: with p; [
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# Haskell dependencies go here
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p.ihp
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base
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wai
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text
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# ihp-mail # Email support: https://ihp.digitallyinduced.com/Guide/mail.html
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# ihp-datasync # Real-time DataSync
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# ihp-job-dashboard # Job dashboard UI
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# ihp-typed-sql # Type-safe SQL queries
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# ihp-pglistener # PostgreSQL LISTEN/NOTIFY
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# Phase 5: Anthropic API calls
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http-conduit
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aeson
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string-conversions
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# Phase 9: External API, crypto, SDK generation
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cryptohash-sha256
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base16-bytestring
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random-bytestring
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yaml
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network-uri
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];
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devHaskellPackages = p: with p; [
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cabal-install
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hlint
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hspec
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ihp-hspec
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];
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# Hoogle documentation server — disabled to save ~400 MB on constrained host
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withHoogle = false;
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# Disable relation type machinery for faster compilation
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# relationSupport = false;
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# Skip tests/haddock for specific packages to speed up builds
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# dontCheckPackages = [ "my-package" ];
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# doJailbreakPackages = [ "my-package" ];
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# dontHaddockPackages = [ "my-package" ];
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# Production build tuning
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# optimizationLevel = "2"; # Default: "1", use "2" for more optimized production binaries
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# rtsFlags = "-A96m -N"; # GHC runtime flags for compiled binaries
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# Mount additional directories under /static/ in production builds
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# static.extraDirs = {
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# # Frontend = self.packages.${system}.frontend;
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# };
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# static.makeBundling = true; # Set false if not using Makefile for CSS/JS bundling
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};
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# OCI container image for Kubernetes deployment (Railiance01).
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# Build: nix build .#docker
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# Push: skopeo copy docker-archive:result docker://92.205.130.254:32166/coulomb/inter-hub:SHA
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# Uses IHP's built-in unoptimized image; binary is /bin/RunProdServer.
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packages.docker = config.packages.unoptimized-docker-image;
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# Custom configuration that will start with `devenv up`
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devenv.shells.default = {
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# Start Mailhog on local development to catch outgoing emails
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# services.mailhog.enable = true;
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# PostgreSQL extensions
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# services.postgres.extensions = extensions: [ extensions.postgis ];
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# GHC 9.10.3 crash fix: Generated.Types imports 119 modules, exceeding
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# the ~287 MB interface-file binary-deserialization limit.
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#
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# pkgs is built from `import nixpkgs { overlays = devenv.shells.default.overlays; }`.
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# IHP adds ihp.overlays.default to this list, which sets
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# pkgs.ghc = haskellPackages.override { overrides = ihpOverrides }.
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# We extend pkgs.ghc with a mkDerivation override (lib.mkAfter ensures
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# we run after IHP's overlay, so prev.ghc is already IHP's package set).
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# 2-way split (60 entities) still crashes — TypesPart1.hi itself hits 287 MB.
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# 4-way split (~30 entities, ~150 MB .hi each) stays safely under the limit.
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# When pname == "inter-hub-models", postUnpack replaces the monolithic
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# Types.hs → empty stub (not compiled); inter-hub-lib imports TypesPart1-8 directly.
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overlays = lib.mkAfter [
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(final: prev: {
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ghc = prev.ghc.extend (hfinal: hprev: {
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mkDerivation = args:
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let drv = hprev.mkDerivation args;
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in if (args.pname or "") == "inter-hub-models"
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then drv.overrideAttrs (old: {
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# 8-way split: ~15 entities per TypesPart → ~144 MB .hi each.
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# Root cause: any re-export hub for 119 IHP entities produces
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# a .hi file ≥ 287 MB (the GHC 9.10.3 Data.Binary.Get limit).
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# Generated.Types is replaced with an empty stub and removed
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# from exposed-modules; inter-hub-lib imports TypesPart1-8 directly.
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# -O0 strips unfoldings/specialisations for additional size reduction.
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configureFlags = (old.configureFlags or []) ++ [ "--ghc-option=-O0" ];
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postUnpack = (old.postUnpack or "") + ''
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_types="$sourceRoot/build/Generated/Types.hs"
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# Create TypesPart1-8: 8-way split, ~15 entities each, ~144 MB .hi
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for _k in 1 2 3 4 5 6 7 8; do
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awk -v K=$_k 'BEGIN{n=0; N=8}
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/^import Generated\./{n++; mods[n]=$2}
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END{
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q_prev = (K==1) ? 0 : int((K-1)*n/N)+1
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q_curr = (K==N) ? n : int(K*n/N)+1
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s = q_prev+1; e = q_curr
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print "module Generated.TypesPart" K " ("
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for(i=s;i<=e;i++){
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if(i<e) print " module " mods[i] ","
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else print " module " mods[i]
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}
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print " ) where"
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for(i=s;i<=e;i++) print "import " mods[i]
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}' "$_types" > "$sourceRoot/build/Generated/TypesPart${_k}.hs"
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done
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# Empty stub: Generated.Types is NOT a re-export hub.
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# Re-exporting all 119 entities would produce ~1.1 GB .hi,
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# crashing GHC when any downstream module reads it.
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# inter-hub-lib imports TypesPart1-8 directly instead.
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printf '%s\n' 'module Generated.Types () where' > "$_types"
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# Update cabal: add TypesPart1-8, remove bare Generated.Types
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# (empty stub is kept as a file but not exposed/compiled).
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# 8-space indent required — 4-space is a new stanza field.
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_cabal=$(ls "$sourceRoot"/*.cabal | head -1)
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if ! grep -q 'Generated\.TypesPart1' "$_cabal"; then
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awk '/Generated\.Types$/ && !/TypesPart/{next}
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/^ exposed-modules:/{
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print " ghc-options: -O0"
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print; next
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}
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/Generated\.LearningInsightInclude/{
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print
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for(k=1;k<=8;k++) print " Generated.TypesPart" k
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next
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}
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{print}' "$_cabal" > "$_cabal.new"
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mv "$_cabal.new" "$_cabal"
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fi
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'';
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})
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else if (args.pname or "") == "inter-hub-lib"
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then drv.overrideAttrs (old: {
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# Generated.Types is an empty stub in models (no re-export hub).
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# Replace every bare `import Generated.Types` with 8 TypesPart imports
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# so app modules get all entity types without touching a huge .hi file.
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postUnpack = (old.postUnpack or "") + ''
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find "$sourceRoot" -name "*.hs" | while read _f; do
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if grep -qE "^import Generated\.Types$" "$_f"; then
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awk '/^import Generated\.Types$/{
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for(k=1;k<=8;k++) print "import Generated.TypesPart" k
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next
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}{print}' "$_f" > "$_f.new" && mv "$_f.new" "$_f"
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fi
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done
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'';
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})
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else drv;
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});
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})
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];
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# Resource limits for constrained host (2 CPU, ~3.8 GiB RAM).
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# -A32m: smaller minor heap (reduces GC pressure).
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# -M2g: hard heap ceiling (prevents OOM on large compiles).
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# Note: -N1 is intentionally omitted — it requires -threaded and
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# would break build-generated-code and similar tools.
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# GHC parallel module compilation is capped via -j1 in .ghci.
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env.GHCRTS = "-A32m -M2g";
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# Custom processes that don't appear in https://devenv.sh/reference/options/
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processes = {
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tailwind.exec = "tailwindcss -c tailwind/tailwind.config.js -i ./tailwind/app.css -o static/app.css --watch=always";
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};
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};
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};
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# Adding the new NixOS configuration for "production"
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# See https://ihp.digitallyinduced.com/Guide/deployment.html#deploying-with-deploytonixos for more info
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# Used to deploy the IHP application
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flake.nixosConfigurations."production" = import ./Config/nix/hosts/production/host.nix { inherit inputs; };
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};
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# The following configuration speeds up build times by using the devenv, cachix and digitallyinduced binary caches
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# You can add your own cachix cache here to speed up builds. For that uncomment the following lines and replace `CHANGE-ME` with your cachix cache name
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nixConfig = {
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extra-substituters = [
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"https://devenv.cachix.org"
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"https://cachix.cachix.org"
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"https://digitallyinduced.cachix.org"
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# "https://CHANGE-ME.cachix.org"
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];
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extra-trusted-public-keys = [
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"devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw="
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"cachix.cachix.org-1:eWNHQldwUO7G2VkjpnjDbWwy4KQ/HNxht7H4SSoMckM="
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"digitallyinduced.cachix.org-1:y+wQvrnxQ+PdEsCt91rmvv39qRCYzEgGQaldK26hCKE="
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# "CHANGE-ME.cachix.org-1:CHANGE-ME-PUBLIC-KEY"
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];
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};
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}
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