Initial commit

.envrc

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+use flake

.gitignore

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+*.annot
+*.cmo
+*.cma
+*.cmi
+*.a
+*.o
+*.cmx
+*.cmxs
+*.cmxa
+
+# ocamlbuild working directory
+_build/
+
+# ocamlbuild targets
+*.byte
+*.native
+
+# oasis generated files
+setup.data
+setup.log
+
+# Merlin configuring file for Vim and Emacs
+.merlin
+
+# Dune generated files
+*.install
+
+# Local OPAM switch
+_opam/
+
+.direnv/

bin/dune

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+(executable
+ (public_name helloworld)
+ (name main)
+ (libraries helloworld))

bin/main.ml

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+let () = print_endline "Hello, World!"

dune-project

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+(lang dune 3.18)
+
+(name helloworld)
+
+(generate_opam_files true)
+
+(source
+ (github username/reponame))
+
+(authors "Author Name <author@example.com>")
+
+(maintainers "Maintainer Name <maintainer@example.com>")
+
+(license LICENSE)
+
+(documentation https://url/to/documentation)
+
+(package
+ (name helloworld)
+ (synopsis "A short synopsis")
+ (description "A longer description")
+ (depends ocaml)
+ (tags
+  ("add topics" "to describe" your project)))
+
+; See the complete stanza docs at https://dune.readthedocs.io/en/stable/reference/dune-project/index.html

flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1743964447,
+        "narHash": "sha256-nEo1t3Q0F+0jQ36HJfbJtiRU4OI+/0jX/iITURKe3EE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "063dece00c5a77e4a0ea24e5e5a5bd75232806f8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  };
+
+  outputs = { self, nixpkgs }:
+    let
+      overlays = [];
+      system = "x86_64-linux";
+      pkgs = import nixpkgs {
+        inherit system overlays;
+      };
+      meta = with nixpkgs.lib; {
+        #homepage = "https://example.com";
+        #license = [ licenses.gpl3 ];
+        platforms = [ system ];
+        #maintainers = with maintainers; [ ];
+      };
+    in {
+      devShells.${system}.default = with pkgs; mkShell {
+        #packages = [];
+        inputsFrom = with self.packages.${system}; [ helloworld ];
+      };
+      packages.${system} = {
+        default = self.packages.${system}.helloworld;
+        helloworld = pkgs.ocamlPackages.buildDunePackage rec {
+          pname = "helloworld";
+          version = "0.1.0";
+          src = ./.;
+          inherit meta;
+        };
+      };
+    };
+}

helloworld.opam

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+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+synopsis: "A short synopsis"
+description: "A longer description"
+maintainer: ["Maintainer Name <maintainer@example.com>"]
+authors: ["Author Name <author@example.com>"]
+license: "LICENSE"
+tags: ["add topics" "to describe" "your" "project"]
+homepage: "https://github.com/username/reponame"
+doc: "https://url/to/documentation"
+bug-reports: "https://github.com/username/reponame/issues"
+depends: [
+  "dune" {>= "3.18"}
+  "ocaml"
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/username/reponame.git"
+x-maintenance-intent: ["(latest)"]

lib/dune

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+(library
+ (name helloworld))

test/dune

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+(test
+ (name test_helloworld))