feat: POC: brrr lib & demo

Functional POC.

Co-authored-by: Jesse Zwaan <[email protected]>

.editorconfig

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+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+charset = utf-8
+
+[*.py]
+indent_style = space
+indent_size = 4

.github/workflows/ci.yaml

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+on:
+  pull_request:
+  push:
+
+name: Syntax
+jobs:
+  nocommit:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: "nocommit checker"
+        uses: nobssoftware/nocommit@v2

.gitignore

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-.venv
+.venv
+.envrc
+.terraform*
+data
+__pycache__
+result
+.direnv

README.md

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+# Brrr: high performance workflow scheduling
+
+Brrr is a POC for ultra high performance workflow scheduling.
+
+## Copyright & License
+
+Brrr was written by Hraban Luyat and Jesse Zwaan.  It is available under the AGPLv3 license (not later).
+
+See the [LICENSE](LICENSE) file.

brrr-demo.nix

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+# Copyright © 2024  Brrr Authors
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, version 3 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# Brrr-demo module for process-compose-flake
+
+{ config, pkgs, name, lib, ... }: {
+  options = with lib.types; {
+    # You’ll want to override this unless you use an overlay
+    package = lib.mkPackageOption pkgs "brrr-demo" { };
+    args = lib.mkOption {
+      default = [];
+      type = listOf str;
+    };
+    environment = lib.mkOption {
+      type = types.attrsOf types.str;
+      default = { };
+      example = {
+        AWS_ENDPOINT_URL = "http://localhost:12345";
+      };
+      description = ''
+        Extra environment variables passed to the `brrr-demo` process.
+      '';
+    };
+  };
+  config = {
+    outputs.settings.processes.${name} = {
+      environment = config.environment;
+      command = "${lib.getExe config.package} ${lib.escapeShellArgs config.args}";
+    };
+  };
+}