commit ca266531a98df80c64782c99b88431c4c5542ac2
Author: Stefan Junker <mail@stefanjunker.de>
Date:   Mon Dec 23 11:55:36 2024 +0100

    feat: init with rust lib and bin crate

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..77d248c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,4 @@
+# blueprint-universe
+
+This repository contains an opinionated [blueprint](https://github.com/numtide/blueprint) template.
+
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..b2c8dd8
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,5 @@
+{
+  outputs = _: {
+    templates.default.path = ./templates/default;
+  };
+}
diff --git a/templates/default/.envrc b/templates/default/.envrc
new file mode 100644
index 0000000..9706a5e
--- /dev/null
+++ b/templates/default/.envrc
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+# Used by https://direnv.net
+
+# Automatically reload when this file changes
+watch_file ./nix/devshells/default.nix
+watch_file ./nix/*.nix
+
+# Load `nix develop`
+use flake .#rust
+
+# Extend the environment with per-user overrides
+source_env_if_exists .envrc.local
diff --git a/templates/default/.gitignore b/templates/default/.gitignore
new file mode 100644
index 0000000..ae0badb
--- /dev/null
+++ b/templates/default/.gitignore
@@ -0,0 +1,24 @@
+# direnv
+.direnv/
+.env
+.envrc.local
+
+# nix
+result
+result-*
+
+# rust
+target/
+
+# nixago: ignore-linked-files
+/treefmt.toml
+
+# nats
+rust/*/tmp
+rust/*/jwt
+rust/*/*/test_leaf_server.conf
+rust/*/*/leaf_server.conf
+rust/*/*/resolver.conf
+leaf_server.conf
+.local
+
diff --git a/templates/default/.vscode/settings.json b/templates/default/.vscode/settings.json
new file mode 100644
index 0000000..f78dcd9
--- /dev/null
+++ b/templates/default/.vscode/settings.json
@@ -0,0 +1,18 @@
+{
+  "editor.defaultFormatter": "ibecker.treefmt-vscode",
+  "direnv.restart.automatic": true,
+  "[nix]": {
+    "editor.defaultFormatter": "jnoortheen.nix-ide",
+    "editor.formatOnSave": true
+  },
+  "nix.enableLanguageServer": true,
+  "nix.serverPath": "nil",
+  "nix.serverSettings": {
+    // settings for 'nil' LSP
+    "nil": {
+      "formatting": {
+        "command": ["treefmt-nix", "--stdin", "neverexists.nix"]
+      }
+    }
+  }
+}
diff --git a/templates/default/Cargo.lock b/templates/default/Cargo.lock
new file mode 100644
index 0000000..1822a9b
--- /dev/null
+++ b/templates/default/Cargo.lock
@@ -0,0 +1,246 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "aho-corasick"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "anstream"
+version = "0.6.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b"
+dependencies = [
+ "anstyle",
+ "anstyle-parse",
+ "anstyle-query",
+ "anstyle-wincon",
+ "colorchoice",
+ "is_terminal_polyfill",
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
+
+[[package]]
+name = "anstyle-parse"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
+dependencies = [
+ "utf8parse",
+]
+
+[[package]]
+name = "anstyle-query"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "anstyle-wincon"
+version = "3.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2109dbce0e72be3ec00bed26e6a7479ca384ad226efdd66db8fa2e3a38c83125"
+dependencies = [
+ "anstyle",
+ "windows-sys",
+]
+
+[[package]]
+name = "anyhow"
+version = "1.0.94"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1fd03a028ef38ba2276dce7e33fcd6369c158a1bca17946c4b1b701891c1ff7"
+
+[[package]]
+name = "app"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "env_logger",
+ "lib",
+ "log",
+]
+
+[[package]]
+name = "colorchoice"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
+
+[[package]]
+name = "env_filter"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f2c92ceda6ceec50f43169f9ee8424fe2db276791afde7b2cd8bc084cb376ab"
+dependencies = [
+ "log",
+ "regex",
+]
+
+[[package]]
+name = "env_logger"
+version = "0.11.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e13fa619b91fb2381732789fc5de83b45675e882f66623b7d8cb4f643017018d"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "env_filter",
+ "humantime",
+ "log",
+]
+
+[[package]]
+name = "humantime"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
+
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+
+[[package]]
+name = "lib"
+version = "0.1.0"
+dependencies = [
+ "anyhow",
+ "log",
+]
+
+[[package]]
+name = "log"
+version = "0.4.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
+
+[[package]]
+name = "memchr"
+version = "2.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+
+[[package]]
+name = "regex"
+version = "1.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b544ef1b4eac5dc2db33ea63606ae9ffcfac26c1416a2806ae0bf5f56b201191"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "809e8dc61f6de73b46c85f4c96486310fe304c434cfa43669d7b40f711150908"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
+
+[[package]]
+name = "utf8parse"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
+
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
+
+[[package]]
+name = "windows_i686_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
diff --git a/templates/default/Cargo.toml b/templates/default/Cargo.toml
new file mode 100644
index 0000000..8a28e34
--- /dev/null
+++ b/templates/default/Cargo.toml
@@ -0,0 +1,19 @@
+[workspace]
+resolver = "2"
+package.version = "0.1.0"
+metadata.crane.name = "blueprint-universe"
+
+members = [
+    "rust/*",
+]
+
+[workspace.dependencies]
+anyhow = "1.0"
+env_logger = "0.11.5"
+log = "0.4.17"
+
+[profile.dev]
+opt-level = "z"
+
+[profile.release]
+opt-level = "z"
diff --git a/templates/default/README.md b/templates/default/README.md
new file mode 100644
index 0000000..74ed709
--- /dev/null
+++ b/templates/default/README.md
@@ -0,0 +1,25 @@
+# rust workspace template
+
+This is an experiment to contain the code for all components in a single repository, also known as a monorepository.
+
+## Repository Layout
+
+The code is grouped by language or framework name.
+
+### Nix
+
+```
+/flake.nix
+/flake.lock
+/nix/ /* [blueprint](https://github.com/numtide/blueprint)  set up underneath here. */
+```
+
+### Rust
+
+```
+/Cargo.toml
+/Cargo.lock
+/rust/ # all rust code lives here
+/rust/common/Cargo.toml
+/rust/common/src/lib.rs
+```
diff --git a/templates/default/flake.lock b/templates/default/flake.lock
new file mode 100644
index 0000000..3450f98
--- /dev/null
+++ b/templates/default/flake.lock
@@ -0,0 +1,335 @@
+{
+  "nodes": {
+    "blueprint": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1733562445,
+        "narHash": "sha256-gLmqbX40Qos+EeBvmlzvntWB3NrdiDaFxhr3VAmhrf4=",
+        "owner": "numtide",
+        "repo": "blueprint",
+        "rev": "97ef7fba3a6eec13e12a108ce4b3473602eb424f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "blueprint",
+        "type": "github"
+      }
+    },
+    "crane": {
+      "locked": {
+        "lastModified": 1734808813,
+        "narHash": "sha256-3aH/0Y6ajIlfy7j52FGZ+s4icVX0oHhqBzRdlOeztqg=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "72e2d02dbac80c8c86bf6bf3e785536acf8ee926",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1653893745,
+        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1653893745,
+        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_3": {
+      "locked": {
+        "lastModified": 1653893745,
+        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_4": {
+      "locked": {
+        "lastModified": 1653893745,
+        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_5": {
+      "locked": {
+        "lastModified": 1653893745,
+        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixago": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixago-exts": "nixago-exts",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1714086354,
+        "narHash": "sha256-yKVQMxL9p7zCWUhnGhDzRVT8sDgHoI3V595lBK0C2YA=",
+        "owner": "jmgilman",
+        "repo": "nixago",
+        "rev": "5133633e9fe6b144c8e00e3b212cdbd5a173b63d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "jmgilman",
+        "repo": "nixago",
+        "type": "github"
+      }
+    },
+    "nixago-exts": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixago": "nixago_2",
+        "nixpkgs": [
+          "nixago",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1676070308,
+        "narHash": "sha256-QaJ65oc2l8iwQIGWUJ0EKjCeSuuCM/LqR8RauxZUUkc=",
+        "owner": "nix-community",
+        "repo": "nixago-extensions",
+        "rev": "e5380cb0456f4ea3c86cf94e3039eb856bf07d0b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixago-extensions",
+        "type": "github"
+      }
+    },
+    "nixago-exts_2": {
+      "inputs": {
+        "flake-utils": "flake-utils_4",
+        "nixago": "nixago_3",
+        "nixpkgs": [
+          "nixago",
+          "nixago-exts",
+          "nixago",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1655508669,
+        "narHash": "sha256-BDDdo5dZQMmwNH/GNacy33nPBnCpSIydWFPZs0kkj/g=",
+        "owner": "nix-community",
+        "repo": "nixago-extensions",
+        "rev": "3022a932ce109258482ecc6568c163e8d0b426aa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixago-extensions",
+        "type": "github"
+      }
+    },
+    "nixago_2": {
+      "inputs": {
+        "flake-utils": "flake-utils_3",
+        "nixago-exts": "nixago-exts_2",
+        "nixpkgs": [
+          "nixago",
+          "nixago-exts",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1676070010,
+        "narHash": "sha256-iYzJIWptE1EUD8VINAg66AAMUajizg8JUYN3oBmb8no=",
+        "owner": "nix-community",
+        "repo": "nixago",
+        "rev": "d480ba6c0c16e2c5c0bd2122852d6a0c9ad1ed0e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "rename-config-data",
+        "repo": "nixago",
+        "type": "github"
+      }
+    },
+    "nixago_3": {
+      "inputs": {
+        "flake-utils": "flake-utils_5",
+        "nixpkgs": [
+          "nixago",
+          "nixago-exts",
+          "nixago",
+          "nixago-exts",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1655405483,
+        "narHash": "sha256-Crd49aZWNrpczlRTOwWGfwBMsTUoG9vlHDKQC7cx264=",
+        "owner": "nix-community",
+        "repo": "nixago",
+        "rev": "e6a9566c18063db5b120e69e048d3627414e327d",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixago",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1734875076,
+        "narHash": "sha256-Pzyb+YNG5u3zP79zoi8HXYMs15Q5dfjDgwCdUI5B0nY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "1807c2b91223227ad5599d7067a61665c52d1295",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-24.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1734649271,
+        "narHash": "sha256-4EVBRhOjMDuGtMaofAIqzJbg4Ql7Ai0PSeuVZTHjyKQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "d70bd19e0a38ad4790d3913bf08fcbfc9eeca507",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "blueprint": "blueprint",
+        "crane": "crane",
+        "nixago": "nixago",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-unstable": "nixpkgs-unstable",
+        "rust-overlay": "rust-overlay",
+        "treefmt-nix": "treefmt-nix"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1734834660,
+        "narHash": "sha256-bm8V+Cu8rWJA+vKQnc94mXTpSDgvedyoDKxTVi/uJfw=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "b070e6030118680977bc2388868c4b3963872134",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1734704479,
+        "narHash": "sha256-MMi74+WckoyEWBRcg/oaGRvXC9BVVxDZNRMpL+72wBI=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "65712f5af67234dad91a5a4baee986a8b62dbf8f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/templates/default/flake.nix b/templates/default/flake.nix
new file mode 100644
index 0000000..6d2cfa1
--- /dev/null
+++ b/templates/default/flake.nix
@@ -0,0 +1,30 @@
+{
+  description = "blueprint-universe";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs?ref=nixos-24.11";
+    nixpkgs-unstable.url = "github:NixOS/nixpkgs?ref=nixos-unstable";
+    blueprint.url = "github:numtide/blueprint";
+    blueprint.inputs.nixpkgs.follows = "nixpkgs";
+    treefmt-nix.url = "github:numtide/treefmt-nix";
+    treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
+    nixago.url = "github:jmgilman/nixago";
+    nixago.inputs.nixpkgs.follows = "nixpkgs";
+
+    crane.url = "github:ipetkov/crane";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs =
+    inputs:
+    inputs.blueprint {
+      inherit inputs;
+      prefix = "nix/";
+
+      # change this if unfree software is required.
+      nixpkgs.config.allowUnfree = false;
+    };
+}
diff --git a/templates/default/nix/devshells/default.nix b/templates/default/nix/devshells/default.nix
new file mode 100644
index 0000000..c2cd433
--- /dev/null
+++ b/templates/default/nix/devshells/default.nix
@@ -0,0 +1,27 @@
+{
+  pkgs,
+  flake,
+  system,
+}:
+pkgs.mkShell {
+  # Add build dependencies
+  packages = [
+    flake.formatter.${system}
+    pkgs.jq
+  ];
+
+  # Add environment variables
+  env = { };
+
+  # Load custom bash code
+  shellHook =
+    # TODO(blocked/upstream): remove this once https://github.com/isbecker/treefmt-vscode/issues/3 is resolved
+    (flake.inputs.nixago.lib.${system}.make {
+      data = flake.formatter.${system}.settings;
+      output = "treefmt.toml";
+      format = "toml";
+    }).shellHook
+    + ''
+      echo $(git rev-parse --show-toplevel)
+    '';
+}
diff --git a/templates/default/nix/devshells/rust.nix b/templates/default/nix/devshells/rust.nix
new file mode 100644
index 0000000..c796b48
--- /dev/null
+++ b/templates/default/nix/devshells/rust.nix
@@ -0,0 +1,34 @@
+{
+  flake,
+  system,
+  pkgs,
+  ...
+}:
+let
+  craneLib = flake.lib.mkCraneLib { inherit pkgs system; };
+in
+craneLib.devShell {
+  inputsFrom =
+    [
+      flake.devShells.${system}.default
+    ]
+    # Inherit inputs from rust-workspace on the platforms it's available.
+    ++ (pkgs.lib.lists.optionals
+      (pkgs.lib.meta.availableOn pkgs.stdenv.hostPlatform flake.packages.${system}.rust-workspace)
+      (
+        [
+          flake.packages.${system}.rust-workspace
+
+        ]
+        ++ (builtins.attrValues flake.packages.${system}.rust-workspace.passthru.tests)
+      )
+    );
+
+  # Additional dev-shell environment variables can be set directly
+  # MY_CUSTOM_DEVELOPMENT_VAR = "something else";
+
+  # Extra inputs can be added here; cargo and rustc are provided by default.
+  packages = [
+    pkgs.natscli
+  ];
+}
diff --git a/templates/default/nix/formatter.nix b/templates/default/nix/formatter.nix
new file mode 100644
index 0000000..e29bc08
--- /dev/null
+++ b/templates/default/nix/formatter.nix
@@ -0,0 +1,70 @@
+{
+  pkgs,
+  inputs,
+  perSystem,
+  ...
+}:
+let
+  settingsNix = {
+    package = perSystem.nixpkgs.treefmt2;
+
+    projectRootFile = ".git/config";
+
+    programs = {
+      nixfmt.enable = true;
+      deadnix = {
+        enable = true;
+        no-underscore = true;
+      };
+      statix.enable = true;
+
+      rustfmt.enable = true;
+
+      gofmt.enable = true;
+
+      shfmt.enable = true;
+
+      prettier.enable = true;
+    } // pkgs.lib.optionalAttrs (pkgs.system != "riscv64-linux") { shellcheck.enable = true; };
+
+    settings = {
+      global.excludes = [
+        "LICENSE"
+        # unsupported extensions
+        "*.{gif,png,svg,tape,mts,lock,mod,sum,toml,env,envrc,gitignore}"
+      ];
+
+      formatter = {
+        deadnix = {
+          priority = 1;
+        };
+
+        nixfmt = {
+          priority = 2;
+        };
+
+        statix = {
+          priority = 3;
+        };
+
+        prettier = {
+          options = [
+            "--tab-width"
+            "2"
+          ];
+          includes = [ "*.{css,html,js,json,jsx,md,mdx,scss,ts,yaml}" ];
+        };
+      };
+    };
+  };
+
+  treefmtEval = inputs.treefmt-nix.lib.evalModule pkgs settingsNix;
+
+in
+treefmtEval.config.build.wrapper.overrideAttrs (_: {
+  passthru = {
+    inherit (treefmtEval.config) package settings;
+    inherit (treefmtEval) config;
+    inherit settingsNix;
+  };
+})
diff --git a/templates/default/nix/lib/default.nix b/templates/default/nix/lib/default.nix
new file mode 100644
index 0000000..3c1aa40
--- /dev/null
+++ b/templates/default/nix/lib/default.nix
@@ -0,0 +1,13 @@
+{ inputs, flake, ... }:
+
+{
+  mkCraneLib =
+    { pkgs, system }:
+    let
+      craneLib = inputs.crane.mkLib pkgs;
+      toolchain = (inputs.rust-overlay.lib.mkRustBin { } pkgs).fromRustupToolchainFile (
+        flake + "/rust-toolchain.toml"
+      );
+    in
+    craneLib.overrideToolchain toolchain;
+}
diff --git a/templates/default/nix/packages/rust-workspace.nix b/templates/default/nix/packages/rust-workspace.nix
new file mode 100644
index 0000000..b0d5227
--- /dev/null
+++ b/templates/default/nix/packages/rust-workspace.nix
@@ -0,0 +1,83 @@
+/*
+  This exposes all crates in the workspace as a single package attribute.
+  It also enforces various tests.
+
+  Losely following the tutorial at https://crane.dev/examples/quick-start-workspace.html
+*/
+
+{
+  flake,
+  pkgs,
+  system,
+  ...
+}:
+let
+  craneLib = flake.lib.mkCraneLib { inherit pkgs system; };
+  src = craneLib.cleanCargoSource flake;
+  commonArgs = {
+    inherit src;
+    strictDeps = true;
+
+    buildInputs = pkgs.lib.optionals pkgs.stdenv.isDarwin [
+      # Additional darwin specific inputs can be set here
+      pkgs.libiconv
+    ];
+
+    # Additional environment variables can be set directly
+    # MY_CUSTOM_VAR = "some value";
+
+    meta.platforms = pkgs.lib.platforms.linux;
+  };
+
+  # Build *just* the cargo dependencies (of the entire workspace),
+  # so we can reuse all of that work (e.g. via cachix) when running in CI
+  # It is *highly* recommended to use something like cargo-hakari to avoid
+  # cache misses when building individual top-level-crates
+  cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+in
+craneLib.cargoBuild (
+  commonArgs
+  // {
+    inherit cargoArtifacts;
+
+    # NB: we disable tests since we'll run them all via cargo-nextest
+    doCheck = false;
+
+    passthru.tests = {
+      clippy = craneLib.cargoClippy (
+        commonArgs
+        // {
+          inherit cargoArtifacts;
+          cargoClippyExtraArgs = "--all-targets -- --deny warnings";
+        }
+      );
+
+      doc = craneLib.cargoDoc (
+        commonArgs
+        // {
+          inherit cargoArtifacts;
+        }
+      );
+
+      # Audit licenses
+      deny = craneLib.cargoDeny {
+        inherit src;
+      };
+
+      nextest = craneLib.cargoNextest (
+        commonArgs
+        // {
+          inherit cargoArtifacts;
+
+          nativeBuildInputs = [
+            # native test binaries go here
+          ];
+          partitions = 1;
+          partitionType = "count";
+        }
+      );
+
+    };
+
+  }
+)
diff --git a/templates/default/rust-toolchain.toml b/templates/default/rust-toolchain.toml
new file mode 100644
index 0000000..7dde9f8
--- /dev/null
+++ b/templates/default/rust-toolchain.toml
@@ -0,0 +1,5 @@
+[toolchain]
+channel = "1.83.0"
+components = [ "cargo","llvm-tools", "rustc", "clippy", "rust-src" ]
+targets = [  ]
+profile = "minimal"
diff --git a/templates/default/rust/app/Cargo.toml b/templates/default/rust/app/Cargo.toml
new file mode 100644
index 0000000..52af8e5
--- /dev/null
+++ b/templates/default/rust/app/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "app"
+edition = "2021"
+version.workspace = true
+
+[dependencies]
+lib = { path = "../lib" }
+
+anyhow = { workspace = true }
+log = { workspace = true }
+env_logger = { workspace = true }
diff --git a/templates/default/rust/app/src/main.rs b/templates/default/rust/app/src/main.rs
new file mode 100644
index 0000000..debf21b
--- /dev/null
+++ b/templates/default/rust/app/src/main.rs
@@ -0,0 +1,6 @@
+fn main() {
+    let (a, b) = (1, 1);
+    let r = lib::add(a, b);
+
+    println!("{a} + {b} = {r}");
+}
diff --git a/templates/default/rust/lib/Cargo.toml b/templates/default/rust/lib/Cargo.toml
new file mode 100644
index 0000000..ded6285
--- /dev/null
+++ b/templates/default/rust/lib/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "lib"
+edition = "2021"
+version.workspace = true
+
+[dependencies]
+anyhow = { workspace = true }
+log = { workspace = true }
diff --git a/templates/default/rust/lib/src/lib.rs b/templates/default/rust/lib/src/lib.rs
new file mode 100644
index 0000000..b93cf3f
--- /dev/null
+++ b/templates/default/rust/lib/src/lib.rs
@@ -0,0 +1,14 @@
+pub fn add(left: u64, right: u64) -> u64 {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}
diff --git a/templates/default/treefmt.toml b/templates/default/treefmt.toml
new file mode 120000
index 0000000..e440515
--- /dev/null
+++ b/templates/default/treefmt.toml
@@ -0,0 +1 @@
+/nix/store/2q0p32grc9y40gilz6z9ck5nmq5ypx4n-treefmt.toml
\ No newline at end of file