diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..a6599c7
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,12 @@
+watch_file flake.nix flake.lock
+
+{
+	# create gc root dir -> .direnv
+	mkdir -p "$(direnv_layout_dir)"
+	eval "$(
+		nix print-dev-env \
+			--no-update-lock-file \
+			--no-write-lock-file \
+			--profile $(direnv_layout_dir)/flake-profile
+	)"
+} || use nix
diff --git a/Project.toml b/Project.toml
index bceb4cb..c9f12ee 100644
--- a/Project.toml
+++ b/Project.toml
@@ -3,6 +3,12 @@ uuid = "5edfbbf5-67b9-46d9-8ca5-929143abcc11"
 authors = ["Valentin Boettcher"]
 version = "0.1.0"
 
+[deps]
+DifferentialEquations = "0c46a032-eb83-5123-abaf-570d42b7fbaa"
+LanguageServer = "2b0e0bc5-e4fd-59b4-8912-456d1b03d8d7"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+Revise = "295af30f-e4ad-537b-8983-00126c2a3abe"
+
 [compat]
 julia = "1"
 
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..786b378
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,726 @@
+{
+  "nodes": {
+    "blank": {
+      "locked": {
+        "lastModified": 1625557891,
+        "narHash": "sha256-O8/MWsPBGhhyPoPLHZAuoZiiHo9q6FLlEeIDEXuj6T4=",
+        "owner": "divnix",
+        "repo": "blank",
+        "rev": "5a5d2684073d9f563072ed07c871d577a6c614a8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "divnix",
+        "repo": "blank",
+        "type": "github"
+      }
+    },
+    "cells-lab": {
+      "inputs": {
+        "nixos": "nixos",
+        "nixpkgs": "nixpkgs",
+        "org-roam-book-template": "org-roam-book-template",
+        "std": "std",
+        "std-data-collection": "std-data-collection",
+        "xnlib": "xnlib"
+      },
+      "locked": {
+        "lastModified": 1676268445,
+        "narHash": "sha256-FjVVzu9pGQmpuyZwJlPgEGLePfDL94gR+M1PNM1gNKM=",
+        "owner": "gtrunsec",
+        "repo": "cells-lab",
+        "rev": "ab176d3030d2d742d48b9045f07564f5aeda936f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "gtrunsec",
+        "repo": "cells-lab",
+        "type": "github"
+      }
+    },
+    "cortex": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1643528409,
+        "narHash": "sha256-ldmenmCzCEuuBlMtaQYe79vYbcTORgkCXgYgGkOzkL8=",
+        "owner": "gtrunsec",
+        "repo": "cortex",
+        "rev": "ad9a963534e5be323a33eaf0f9aa3e914cca8093",
+        "type": "github"
+      },
+      "original": {
+        "owner": "gtrunsec",
+        "repo": "cortex",
+        "type": "github"
+      }
+    },
+    "devshell": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1677793770,
+        "narHash": "sha256-sPBZTh6MNV0R5cMe6It+3BP75PhfP4nXP0M9nRtUHVU=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "a027fa50746d95abf0ea35847bed0e0bc2d7a9da",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "devshell_2": {
+      "inputs": {
+        "flake-utils": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1663445644,
+        "narHash": "sha256-+xVlcK60x7VY1vRJbNUEAHi17ZuoQxAIH4S4iUFUGBA=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "e3dc3e21594fe07bdb24bdf1c8657acaa4cb8f66",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "dmerge": {
+      "inputs": {
+        "nixlib": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "nixpkgs"
+        ],
+        "yants": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "yants"
+        ]
+      },
+      "locked": {
+        "lastModified": 1659548052,
+        "narHash": "sha256-fzI2gp1skGA8mQo/FBFrUAtY0GQkAIAaV/V127TJPyY=",
+        "owner": "divnix",
+        "repo": "data-merge",
+        "rev": "d160d18ce7b1a45b88344aa3f13ed1163954b497",
+        "type": "github"
+      },
+      "original": {
+        "owner": "divnix",
+        "repo": "data-merge",
+        "type": "github"
+      }
+    },
+    "emacs-overlay": {
+      "inputs": {
+        "flake-utils": "flake-utils_3",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1676258056,
+        "narHash": "sha256-LhXVnPc+IPHupy7QexUrzYuloSGXvXEgvIkAlhFs+yY=",
+        "owner": "nix-community",
+        "repo": "emacs-overlay",
+        "rev": "09ebba158540ba3171b5f319b71427b51db8794b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "emacs-overlay",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1642700792,
+        "narHash": "sha256-XqHrk7hFb+zBvRg6Ghl+AZDq03ov6OshJLiSWOoX5es=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "846b2ae0fc4cc943637d3d1def4454213e203cba",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "locked": {
+        "lastModified": 1676283394,
+        "narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_3": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_4": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_5": {
+      "locked": {
+        "lastModified": 1659877975,
+        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "incl": {
+      "inputs": {
+        "nixlib": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1669263024,
+        "narHash": "sha256-E/+23NKtxAqYG/0ydYgxlgarKnxmDbg6rCMWnOBqn9Q=",
+        "owner": "divnix",
+        "repo": "incl",
+        "rev": "ce7bebaee048e4cd7ebdb4cee7885e00c4e2abca",
+        "type": "github"
+      },
+      "original": {
+        "owner": "divnix",
+        "repo": "incl",
+        "type": "github"
+      }
+    },
+    "julia2nix": {
+      "inputs": {
+        "cells-lab": "cells-lab",
+        "nix-filter": "nix-filter_2",
+        "nixpkgs": "nixpkgs_3",
+        "std": [
+          "julia2nix",
+          "cells-lab",
+          "std"
+        ],
+        "std-data-collection": [
+          "julia2nix",
+          "cells-lab",
+          "std-data-collection"
+        ]
+      },
+      "locked": {
+        "lastModified": 1677373375,
+        "narHash": "sha256-94y8UyaoSlQjsrSIsHdMrzOT7RBaGQFV2dlFqlK6x8g=",
+        "owner": "JuliaCN",
+        "repo": "Julia2Nix.jl",
+        "rev": "4dd90bedf3a3fbc36273670b3fbcfd1b63484142",
+        "type": "github"
+      },
+      "original": {
+        "owner": "JuliaCN",
+        "repo": "Julia2Nix.jl",
+        "type": "github"
+      }
+    },
+    "n2c": {
+      "inputs": {
+        "flake-utils": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1665039323,
+        "narHash": "sha256-SAh3ZjFGsaCI8FRzXQyp56qcGdAqgKEfJWPCQ0Sr7tQ=",
+        "owner": "nlewo",
+        "repo": "nix2container",
+        "rev": "b008fe329ffb59b67bf9e7b08ede6ee792f2741a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nlewo",
+        "repo": "nix2container",
+        "type": "github"
+      }
+    },
+    "nix-filter": {
+      "locked": {
+        "lastModified": 1666547822,
+        "narHash": "sha256-razwnAybPHyoAyhkKCwXdxihIqJi1G6e1XP4FQOJTEs=",
+        "owner": "numtide",
+        "repo": "nix-filter",
+        "rev": "1a3b735e13e90a8d2fd5629f2f8363bd7ffbbec7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "nix-filter",
+        "type": "github"
+      }
+    },
+    "nix-filter_2": {
+      "locked": {
+        "lastModified": 1666547822,
+        "narHash": "sha256-razwnAybPHyoAyhkKCwXdxihIqJi1G6e1XP4FQOJTEs=",
+        "owner": "numtide",
+        "repo": "nix-filter",
+        "rev": "1a3b735e13e90a8d2fd5629f2f8363bd7ffbbec7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "nix-filter",
+        "type": "github"
+      }
+    },
+    "nix-std": {
+      "locked": {
+        "lastModified": 1671250799,
+        "narHash": "sha256-uPIakP98gOf6504NtrAb2/0O0BgRRXNShM0PTV8z+T0=",
+        "owner": "chessai",
+        "repo": "nix-std",
+        "rev": "b300fd6dfeae8cc331c7d8cde0e81b404d50d40c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "chessai",
+        "repo": "nix-std",
+        "type": "github"
+      }
+    },
+    "nixago": {
+      "inputs": {
+        "flake-utils": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "flake-utils"
+        ],
+        "nixago-exts": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "blank"
+        ],
+        "nixpkgs": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1676075813,
+        "narHash": "sha256-X/aIT8Qc8UCqnxJvaZykx3CJ0ZnDFvO+dqp/7fglZWo=",
+        "owner": "nix-community",
+        "repo": "nixago",
+        "rev": "9cab4dde31ec2f2c05d702ea8648ce580664e906",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixago",
+        "type": "github"
+      }
+    },
+    "nixlib": {
+      "locked": {
+        "lastModified": 1673743903,
+        "narHash": "sha256-sloY6KYyVOozJ1CkbgJPpZ99TKIjIvM+04V48C04sMQ=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "7555e2dfcbac1533f047021f1744ac8871150f9f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "nixos": {
+      "locked": {
+        "lastModified": 1676177817,
+        "narHash": "sha256-OQnBnuKkpwkfNY31xQyfU5hNpLs1ilWt+hVY6ztEEOM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "1b82144edfcd0c86486d2e07c7298f85510e7fb8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1675940568,
+        "narHash": "sha256-epG6pOT9V0kS+FUqd7R6/CWkgnZx2DMT5Veqo+y6G3c=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6ccc4a59c3f1b56d039d93da52696633e641bc71",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1673540789,
+        "narHash": "sha256-xqnxBOK3qctIeUVxecydrEDbEXjsvHCPGPbvsl63M/U=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "0f213d0fee84280d8c3a97f7469b988d6fe5fcdf",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1672428209,
+        "narHash": "sha256-eejhqkDz2cb2vc5VeaWphJz8UXNuoNoM8/Op8eWv2tQ=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "293a28df6d7ff3dec1e61e37cc4ee6e6c0fb0847",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_4": {
+      "locked": {
+        "lastModified": 1677655566,
+        "narHash": "sha256-I8G8Lmpp3YduYl4+pkiIJFGT1WKw+8ZMH2QwANkTu2U=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "ae8bdd2de4c23b239b5a771501641d2ef5e027d0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nosys": {
+      "locked": {
+        "lastModified": 1668010795,
+        "narHash": "sha256-JBDVBnos8g0toU7EhIIqQ1If5m/nyBqtHhL3sicdPwI=",
+        "owner": "divnix",
+        "repo": "nosys",
+        "rev": "feade0141487801c71ff55623b421ed535dbdefa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "divnix",
+        "repo": "nosys",
+        "type": "github"
+      }
+    },
+    "org-roam-book-template": {
+      "inputs": {
+        "cortex": "cortex",
+        "emacs-overlay": "emacs-overlay",
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils_4",
+        "nix-filter": "nix-filter",
+        "nixpkgs": [
+          "julia2nix",
+          "cells-lab",
+          "nixpkgs"
+        ],
+        "ox-hugo": "ox-hugo"
+      },
+      "locked": {
+        "lastModified": 1676267610,
+        "narHash": "sha256-rweyZN0cRYY9Uoeo/94Sa1DHgBI2NRXC+/iNdqypptc=",
+        "owner": "gtrunsec",
+        "repo": "org-roam-book-template",
+        "rev": "fd76272fb78c5fae39e7bd8e8c8165ca85fa2d1a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "gtrunsec",
+        "repo": "org-roam-book-template",
+        "type": "github"
+      }
+    },
+    "ox-hugo": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1669851508,
+        "narHash": "sha256-7m9B647uOBnSWYsxIfavlTCsT8loDm33v/epqYSUhLw=",
+        "owner": "kaushalmodi",
+        "repo": "ox-hugo",
+        "rev": "706b5f622d168bb8e0cf503e0525d2db9177c83e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "kaushalmodi",
+        "repo": "ox-hugo",
+        "type": "github"
+      }
+    },
+    "paisano": {
+      "inputs": {
+        "nixpkgs": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "nixpkgs"
+        ],
+        "nosys": "nosys",
+        "yants": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "yants"
+        ]
+      },
+      "locked": {
+        "lastModified": 1676226775,
+        "narHash": "sha256-MiY0Y9JOo71wu0K9cSxW+N4gOCuS7taI3bSUMFGtbPI=",
+        "owner": "divnix",
+        "repo": "paisano",
+        "rev": "143afa3083274af3be808687ab23fddbbc9d22ed",
+        "type": "github"
+      },
+      "original": {
+        "owner": "divnix",
+        "repo": "paisano",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devshell": "devshell",
+        "flake-utils": "flake-utils_2",
+        "julia2nix": "julia2nix",
+        "nixpkgs": "nixpkgs_4"
+      }
+    },
+    "std": {
+      "inputs": {
+        "arion": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "blank"
+        ],
+        "blank": "blank",
+        "devshell": "devshell_2",
+        "dmerge": "dmerge",
+        "flake-utils": "flake-utils_5",
+        "incl": "incl",
+        "makes": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "blank"
+        ],
+        "microvm": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "blank"
+        ],
+        "n2c": "n2c",
+        "nixago": "nixago",
+        "nixpkgs": [
+          "julia2nix",
+          "cells-lab",
+          "nixpkgs"
+        ],
+        "paisano": "paisano",
+        "yants": "yants"
+      },
+      "locked": {
+        "lastModified": 1676232625,
+        "narHash": "sha256-M9xLaFVhD58UwGKoodAzeZD1iBdrCTtAsqKwWX5mUXA=",
+        "owner": "divnix",
+        "repo": "std",
+        "rev": "b462198baa6b3a3c6f3f46662500f683e105a2fa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "divnix",
+        "repo": "std",
+        "type": "github"
+      }
+    },
+    "std-data-collection": {
+      "inputs": {
+        "nixpkgs": [
+          "julia2nix",
+          "cells-lab",
+          "nixpkgs"
+        ],
+        "std": [
+          "julia2nix",
+          "cells-lab",
+          "std"
+        ]
+      },
+      "locked": {
+        "lastModified": 1676163535,
+        "narHash": "sha256-xofkWLBqU4zj5vzJhWor2Z9CyPGKt7UGkTchsCT48Po=",
+        "owner": "divnix",
+        "repo": "std-data-collection",
+        "rev": "f713d81a6197e1b0854fb201cc7acde5ef9e93d4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "divnix",
+        "repo": "std-data-collection",
+        "type": "github"
+      }
+    },
+    "xnlib": {
+      "inputs": {
+        "nix-std": "nix-std",
+        "nixlib": "nixlib",
+        "std": [
+          "julia2nix",
+          "cells-lab",
+          "std"
+        ]
+      },
+      "locked": {
+        "lastModified": 1674228201,
+        "narHash": "sha256-2ONv2b8TTkCAyOSO9LMp3wTzOS9BW6riEBxq5xwsvvc=",
+        "owner": "gtrunsec",
+        "repo": "xnlib",
+        "rev": "b9625c523d34617dc5aab311abb59590406fa8be",
+        "type": "github"
+      },
+      "original": {
+        "owner": "gtrunsec",
+        "repo": "xnlib",
+        "type": "github"
+      }
+    },
+    "yants": {
+      "inputs": {
+        "nixpkgs": [
+          "julia2nix",
+          "cells-lab",
+          "std",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1667096281,
+        "narHash": "sha256-wRRec6ze0gJHmGn6m57/zhz/Kdvp9HS4Nl5fkQ+uIuA=",
+        "owner": "divnix",
+        "repo": "yants",
+        "rev": "d18f356ec25cb94dc9c275870c3a7927a10f8c3c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "divnix",
+        "repo": "yants",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..bd2630a
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,76 @@
+{
+  description = "Julia2Nix development environment";
+
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+    devshell.url = "github:numtide/devshell";
+    devshell.inputs.nixpkgs.follows = "nixpkgs";
+
+    julia2nix.url = "github:JuliaCN/Julia2Nix.jl";
+  };
+
+  outputs = inputs @ {
+    self,
+    julia2nix,
+    ...
+  }:
+    (
+      inputs.flake-utils.lib.eachDefaultSystem
+      (system: let
+        pkgs = inputs.nixpkgs.legacyPackages.${system}.appendOverlays ([
+          self.overlays.default
+        inputs.devshell.overlays.default
+        ]);
+        julia-wrapped = inputs.julia2nix.lib.${system}.julia-wrapped {
+          # package = pkgs.julia_17-bin;
+          package = julia2nix.packages.${system}.julia_18-bin;
+          enable = {
+            # only x86_64-linux is supported
+            GR = true;
+            python =
+              pkgs.python3.buildEnv.override
+              {
+                extraLibs = with pkgs.python3Packages; [xlrd matplotlib pyqt5];
+                # ignoreCollisions = true;
+              };
+          };
+        };
+
+        # run this command in your project: nix run github:JuliaCN/Julia2Nix.jl#packages.x86_64-linux.julia2nix
+        # we need to generate the julia2nix.toml first
+        project = inputs.julia2nix.lib.${system}.buildProject {
+          src = ./.;
+          name = "Looping";
+          package = julia-wrapped;
+        };
+      in {
+        packages = {
+          # make sure you have generated the julia2nix.toml
+          default = project;
+        };
+        devShells.default = pkgs.devshell.mkShell {
+          imports = [
+            # you can keep either one of them devshellProfiles.packages or julia-wrapped
+            # inputs.julia2nix.${pkgs.system}.julia2nix.devshellProfiles.packages
+
+            # add dev-tools in your devshell
+            inputs.julia2nix.${pkgs.system}.julia2nix.devshellProfiles.dev
+
+            # add nightly julia
+            # inputs.julia2nix.${pkgs.system}.julia2nix.devshellProfiles.nightly
+          ];
+          commands = [
+            {
+              package = julia-wrapped;
+              help = julia2nix.packages.${pkgs.system}.julia_18-bin.meta.description;
+            }
+          ];
+        };
+      })
+    )
+    // {
+      overlays.default = final: prev: {};
+    };
+}
diff --git a/julia2nix.toml b/julia2nix.toml
new file mode 100644
index 0000000..e75458d
--- /dev/null
+++ b/julia2nix.toml
@@ -0,0 +1,6 @@
+
+[depot.x86_64-linux.fetchzip.registry-General]
+name = "registries/General"
+sha256 = "sha256-WfmgU1GuxVGn9yl/EQ7doYdnDUSMDi7SqCyEy8YamXY="
+stripRoot = false
+url = "https://pkg.julialang.org/registry/23338594-aafe-5451-b93e-139f81909106/93737299af624d55235fd13616742788b10c0ed3#registry.tar.gz"