generated from coulomb/repo-seed
tegwick
1bdbce96e6
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Previous attempt (stubs + direct imports) broke qualified constructor references like Generated.ActualTypes.WidgetVersion in Include files — removing the hub from scope invalidated all qualified names through it. New approach: rewrite Generated.ActualTypes.hs in postUnpack to replace the `module M` export list with explicit T(..) re-exports. Explicit re-exports store only name references in the .hi file (compact), while `module M` embeds the full sub-interface (~287 MB for 61 modules). Hub stays functional — consumers still qualify via Generated.ActualTypes. Also deduplicate with sort -u in case PrimaryKeys and entity files both declare the same ID type. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
224 lines
13 KiB
Nix
224 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.ActualTypes uses `module M` re-export
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# syntax for 61 sub-modules; the resulting ActualTypes.hi exceeds GHC's
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# ~274 MB binary-deserialization limit (crash at position 287686318).
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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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# For inter-hub-models: rewrite ActualTypes.hs export list from (module N)
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# syntax to explicit T(..) re-exports — keeps hub functional for qualified
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# references (Generated.ActualTypes.T) while producing compact .hi.
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# Generated.Types stubbed; inter-hub-lib replaces its import with direct
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# entity imports (sourceRoot is per-package, originals intact there).
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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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# GHC 9.10.3 crash: `module M` re-export syntax in Generated.ActualTypes
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# embeds 61 full sub-interfaces into ActualTypes.hi (~287 MB), exceeding
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# GHC's 274 MB binary read limit.
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#
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# Fix: rewrite the hub's export list from `module M` syntax to explicit
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# T(..) re-exports. Explicit re-exports store only name references in
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# the .hi file (compact); `module M` embeds the full sub-interface.
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# Hub stays functional (consumers still qualify via Generated.ActualTypes),
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# but .hi stays small.
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configureFlags = (old.configureFlags or []) ++ [
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"--ghc-option=-O0"
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"--ghc-option=-fomit-interface-pragmas"
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];
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postUnpack = (old.postUnpack or "") + ''
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_actual="$sourceRoot/build/Generated/ActualTypes.hs"
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# Rewrite hub export list: (module N, ...) → (T(..), ...)
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# Extract all data/newtype names from inner module files.
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_types=$(
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{
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awk '/^data [A-Z]|^newtype [A-Z]/{print $2"(..)"}' \
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"$sourceRoot/build/Generated/Enums.hs"
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find "$sourceRoot/build/Generated/ActualTypes" -name "*.hs" | \
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sort | while IFS= read -r _m; do
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awk '/^data [A-Z]|^newtype [A-Z]/{print $2"(..)"}' "$_m"
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done
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} | sort -u
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)
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_exports=$(echo "$_types" | \
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awk 'NR==1{printf " %s", $0; next} {printf "\n , %s", $0} END{printf "\n"}')
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_imports=$(awk '/^import Generated\./{print}' "$_actual")
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{
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printf 'module Generated.ActualTypes\n ( %s ) where\n' "$_exports"
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printf '%s\n' "$_imports"
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} > "$_actual.new" && mv "$_actual.new" "$_actual"
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# Stub Generated.Types (inter-hub-lib reads original from its sourceRoot)
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printf '%s\n' 'module Generated.Types () where' \
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> "$sourceRoot/build/Generated/Types.hs"
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'';
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})
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else if (args.pname or "") == "inter-hub-lib"
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then drv.overrideAttrs (old: {
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# Generated.Types is an empty stub in models — hub removed to avoid
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# module M re-export crash. Replace every bare `import Generated.Types`
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# with direct imports of the 119 individual entity modules.
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# Generated.ActualTypes hub is still functional (explicit T(..) exports),
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# so no patching needed for ActualTypes imports in this package.
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postUnpack = (old.postUnpack or "") + ''
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_types="$sourceRoot/build/Generated/Types.hs"
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_imp=$(mktemp)
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awk '/^import Generated\./{print "import " $2}' "$_types" > "$_imp"
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find "$sourceRoot" -name "*.hs" | while IFS= read -r _f; do
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if grep -qE "^import Generated\.Types$" "$_f"; then
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awk -v imp="$_imp" '
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/^import Generated\.Types$/{
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while ((getline ln < imp) > 0) print ln
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close(imp)
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next
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}
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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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rm -f "$_imp"
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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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