From 07e260db586a5c3497c47b6b8c5b4ac2c832df6f Mon Sep 17 00:00:00 2001
From: Michal Atlas <michal_atlas+git@posteo.net>
Date: Thu, 26 Oct 2023 13:19:15 +0200
Subject: [PATCH] Truth: Base

---
 index.html           |  3 +++
 the-truth/.envrc     |  1 +
 the-truth/flake.lock | 26 +++++++++++++++++++++++++
 the-truth/flake.nix  | 46 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 76 insertions(+)
 create mode 100644 the-truth/.envrc
 create mode 100644 the-truth/flake.lock
 create mode 100644 the-truth/flake.nix

diff --git a/index.html b/index.html
index de8729c..2b663fa 100644
--- a/index.html
+++ b/index.html
@@ -799,6 +799,9 @@ <h4>Lock file</h4>
 				    </code>
 				  </pre>
                                 </section>
+                                <section data-background-iframe="https://nixos.org/manual/nix/unstable/language/derivations.html"
+					 data-background-interactive>
+				</section>
                                 <section>
                                   Where do I output the build?
                                   <br></br>                                  <br></br>
diff --git a/the-truth/.envrc b/the-truth/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/the-truth/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/the-truth/flake.lock b/the-truth/flake.lock
new file mode 100644
index 0000000..5bad0f2
--- /dev/null
+++ b/the-truth/flake.lock
@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1698318101,
+        "narHash": "sha256-gUihHt3yPD7bVqg+k/UVHgngyaJ3DMEBchbymBMvK1E=",
+        "owner": "NixOs",
+        "repo": "nixpkgs",
+        "rev": "63678e9f3d3afecfeafa0acead6239cdb447574c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOs",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/the-truth/flake.nix b/the-truth/flake.nix
new file mode 100644
index 0000000..7239139
--- /dev/null
+++ b/the-truth/flake.nix
@@ -0,0 +1,46 @@
+{
+  inputs.nixpkgs.url = "github:NixOs/nixpkgs";
+
+  outputs = { nixpkgs, ... }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs { inherit system; };
+    in {
+      packages.${system} = {
+        isolation = builtins.derivation {
+          name = "isolation";
+          builder = "${pkgs.bash}/bin/bash";
+          args = [
+            (builtins.toFile "builder.sh" ''
+              set -euox pipefail;
+              mkdir "$out";
+              env > "$out/env";
+              ls /nix/store > "$out/visible-store";
+            '')
+          ];
+          PATH = "${pkgs.coreutils}/bin";
+          inherit system;
+        };
+        unworth = builtins.derivation {
+          name = "unworth";
+          builder = "${pkgs.bash}/bin/bash";
+          args = [
+            (builtins.toFile "builder.sh" ''
+              exit 1
+            '')
+          ];
+          inherit system;
+        };
+        sloth = builtins.derivation {
+          name = "sloth";
+          builder = "${pkgs.bash}/bin/bash";
+          args = [
+            (builtins.toFile "builder.sh" ''
+              exit 0
+            '')
+          ];
+          inherit system;
+        };
+      };
+    };
+}