add flake to provide environnement

added flake.nix to provide a build and dev environnement to bootstrap
	a venv with presenterm and weasyprint easily
added a package output to flake.nix to build all the posts.
	the build process use a python script for easier extensibility

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -0,0 +1 @@
+result/

flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1757347588,
+        "narHash": "sha256-tLdkkC6XnsY9EOZW9TlpesTclELy8W7lL2ClL+nma8o=",
+        "rev": "b599843bad24621dcaa5ab60dac98f9b0eb1cabe",
+        "revCount": 858212,
+        "type": "tarball",
+        "url": "https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.858212%2Brev-b599843bad24621dcaa5ab60dac98f9b0eb1cabe/01992e5d-548e-7231-8669-92a393e208fa/source.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://flakehub.com/f/NixOS/nixpkgs/0.1"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "An empty flake template that you can adapt to your own environment";
+
+  # Flake inputs
+  inputs.nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1";
+
+  # Flake outputs
+  outputs =
+    inputs:
+    let
+      # The systems supported for this flake
+      supportedSystems = [
+        "x86_64-linux" # 64-bit Intel/AMD Linux
+        "aarch64-linux" # 64-bit ARM Linux
+        "x86_64-darwin" # 64-bit Intel macOS
+        "aarch64-darwin" # 64-bit ARM macOS
+      ];
+
+      # Helper to provide system-specific attributes
+      forEachSupportedSystem =
+        f:
+        inputs.nixpkgs.lib.genAttrs supportedSystems (
+          system:
+          f {
+            pkgs = import inputs.nixpkgs { inherit system; };
+          }
+        );
+    in
+    {
+      devShells = forEachSupportedSystem (
+        { pkgs }: {
+          default = pkgs.mkShell {
+            # The Nix packages provided in the environment
+            # Add any you need here
+            packages = with pkgs; [
+              presenterm
+              python313Packages.weasyprint
+            ];
+
+            # Set any environment variables for your dev shell
+            env = { };
+
+            # Add any shell logic you want executed any time the environment is activated
+            shellHook = '''';
+          };
+        }
+      );
+      packages = forEachSupportedSystem (
+        { pkgs }: {
+          default = pkgs.stdenv.mkDerivation {
+            inherit (pkgs) system;
+            name = "linkedin-shoblog-posts";
+            src = ./src;
+            buildInputs = with pkgs; [
+              presenterm
+              python313Packages.weasyprint
+            ];
+            buildPhase = let
+              font_dir = "${pkgs.nerd-fonts.jetbrains-mono}/share/fonts/truetype/NerdFonts/JetBrainsMono/";
+              config = pkgs.writeTextFile {
+                name = "presenterm.conf";
+                text = ''
+                  export:
+                    dimensions:
+                      columns: 108
+                      rows: 85
+                    pdf:
+                      fonts:
+                        normal: ${font_dir}/JetBrainsMonoNerdFont-Regular.ttf 
+                        italic: ${font_dir}/JetBrainsMonoNerdFont-Italic.ttf
+                        bold: ${font_dir}/JetBrainsMonoNerdFont-Bold.ttf
+                        bold_italic: ${font_dir}/JetBrainsMonoNerdFont-BoldItalic.ttf
+                '';
+              };
+            in
+            ''
+              export PRES_CONFIG=${config}
+              python scripts/build.py
+            '';
+          };
+        }
+      );
+    };
+}

src/Makefile

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+install:
+	mkdir -p ${out}
+	cp output/* ${out}/

src/configs/presenterm.yaml

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+export:
+  dimensions:
+    columns: 108
+    rows: 85
+  pdf:
+    fonts:
+      normal: /usr/share/fonts/truetype/tlwg/TlwgMono.ttf
+      italic: /usr/share/fonts/truetype/tlwg/TlwgMono-Oblique.ttf
+      bold: /usr/share/fonts/truetype/tlwg/TlwgMono-Bold.ttf
+      bold_italic: /usr/share/fonts/truetype/tlwg/TlwgMono-BoldOblique.ttf
+

src/scripts/build.py

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+import os
+from pathlib import Path
+from subprocess import run
+
+posts = [post for topic in Path("./posts").iterdir() for post in topic.iterdir()]
+
+config = Path(os.environ.get("PRES_CONFIG", "./configs/presenterm.yaml"))
+
+out_dir = Path('./output')
+out_dir.exists() or out_dir.mkdir()
+
+for post_dir in posts:
+    run_result = run([f"presenterm -e --config-file {config} {post_dir / f'{post_dir.name}.md'}"], shell = True)
+    (post_dir / f'{post_dir.name}.pdf').replace(out_dir / f'{post_dir.name}.pdf')