diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8454dc7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/nim.cfg
diff --git a/Tupfile b/Tupfile
new file mode 100644
index 0000000..eaaeaaf
--- /dev/null
+++ b/Tupfile
@@ -0,0 +1,3 @@
+include_rules
+: |> !nim_lk |> {lockfile}
+: {lockfile} |> !nim_cfg |> | ./<lock>
diff --git a/Tuprules.tup b/Tuprules.tup
index f902ead..704673f 100644
--- a/Tuprules.tup
+++ b/Tuprules.tup
@@ -1,2 +1,4 @@
 include ../syndicate-nim/depends.tup
+NIM = $(DIRENV) $(NIM)
 NIM_FLAGS += --path:$(TUP_CWD)/../syndicate-nim/src
+NIM_GROUPS += $(TUP_CWD)/<lock>
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..3238e8d
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,7 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+pkgs.buildNimPackage {
+  name = "syndicate_utils_linux";
+  lockFile = ./lock.json;
+  src = pkgs.lib.sources.cleanSource ./.;
+}
diff --git a/lock.json b/lock.json
new file mode 100644
index 0000000..4fe326a
--- /dev/null
+++ b/lock.json
@@ -0,0 +1,103 @@
+{
+  "depends": [
+    {
+      "method": "fetchzip",
+      "packages": [
+        "bigints"
+      ],
+      "path": "/nix/store/jvrm392g8adfsgf36prgwkbyd7vh5jsw-source",
+      "rev": "86ea14d31eea9275e1408ca34e6bfe9c99989a96",
+      "sha256": "15pcpmnk1bnw3k8769rjzcpg00nahyrypwbxs88jnwr4aczp99j4",
+      "srcDir": "src",
+      "url": "https://github.com/ehmry/nim-bigints/archive/86ea14d31eea9275e1408ca34e6bfe9c99989a96.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "cps"
+      ],
+      "path": "/nix/store/452hfhasrn3gl6vijfmzs69djl099j0j-source",
+      "rev": "b7c179f172e3a256a482a9daee3c0815ea423206",
+      "sha256": "1sn9s7iv83sw1jl5jgi2h7b0xpgsn13f9icp5124jvbp0qkxskx2",
+      "srcDir": "",
+      "url": "https://github.com/nim-works/cps/archive/b7c179f172e3a256a482a9daee3c0815ea423206.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "hashlib"
+      ],
+      "path": "/nix/store/fav82xdbicvlk34nmcbl89zx99lr3mbs-source",
+      "rev": "f9455d4be988e14e3dc7933eb7cc7d7c4820b7ac",
+      "sha256": "1sx6j952lj98629qfgr7ds5aipyw9d6lldcnnqs205wpj4pkcjb3",
+      "srcDir": "",
+      "url": "https://github.com/khchen/hashlib/archive/f9455d4be988e14e3dc7933eb7cc7d7c4820b7ac.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "nimcrypto"
+      ],
+      "path": "/nix/store/jwz8pqbv6rsm8w4fjzdb37r0wzjn5hv0-source",
+      "rev": "d58da671799c69c0b3208b96c154e13c8b1a9e90",
+      "sha256": "12dm0gsy10ppga7zf7hpf4adaqjrd9b740n2w926xyazq1njf6k9",
+      "srcDir": "",
+      "url": "https://github.com/cheatfate/nimcrypto/archive/d58da671799c69c0b3208b96c154e13c8b1a9e90.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "npeg"
+      ],
+      "path": "/nix/store/ffkxmjmigfs7zhhiiqm0iw2c34smyciy-source",
+      "rev": "26d62fdc40feb84c6533956dc11d5ee9ea9b6c09",
+      "sha256": "0xpzifjkfp49w76qmaylan8q181bs45anmp46l4bwr3lkrr7bpwh",
+      "srcDir": "src",
+      "url": "https://github.com/zevv/npeg/archive/26d62fdc40feb84c6533956dc11d5ee9ea9b6c09.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "preserves"
+      ],
+      "path": "/nix/store/2hy124xgabz134dxj3wji7mp47fdwy3w-source",
+      "rev": "9ae435a83c6d5028405538af5d24a023af625b6e",
+      "sha256": "1k7ywcp1a53x2fpc6wc2b0qzb264dkifash0s1wcp66rw3lx15k2",
+      "srcDir": "src",
+      "url": "https://git.syndicate-lang.org/ehmry/preserves-nim/archive/9ae435a83c6d5028405538af5d24a023af625b6e.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "stew"
+      ],
+      "path": "/nix/store/mqg8qzsbcc8xqabq2yzvlhvcyqypk72c-source",
+      "rev": "3c91b8694e15137a81ec7db37c6c58194ec94a6a",
+      "sha256": "17lfhfxp5nxvld78xa83p258y80ks5jb4n53152cdr57xk86y07w",
+      "srcDir": "",
+      "url": "https://github.com/status-im/nim-stew/archive/3c91b8694e15137a81ec7db37c6c58194ec94a6a.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "syndicate"
+      ],
+      "path": "/nix/store/y9f3j4m7vmhf8gbpkvqa77jvzrc5ynlm-source",
+      "rev": "50a77995bcfe15e6062f54c6af0f55fba850c329",
+      "sha256": "1avrk86c34qg39w8vlixsksli2gwgbsf29jhlap27ffzdbj2zbal",
+      "srcDir": "src",
+      "url": "https://git.syndicate-lang.org/ehmry/syndicate-nim/archive/50a77995bcfe15e6062f54c6af0f55fba850c329.tar.gz"
+    },
+    {
+      "method": "fetchzip",
+      "packages": [
+        "sys"
+      ],
+      "path": "/nix/store/anfijq8zsfvhcy86dx21n8ikh3z8927s-source",
+      "rev": "b974e1a4ca6ae7d89fc9e7b3714b1e7daf6f33e5",
+      "sha256": "13js2plyf34bdv9rwhbjkgygmyb89h43cf3z126yjsm2fvh2sl10",
+      "srcDir": "src",
+      "url": "https://github.com/ehmry/nim-sys/archive/b974e1a4ca6ae7d89fc9e7b3714b1e7daf6f33e5.tar.gz"
+    }
+  ]
+}
diff --git a/shell.nix b/shell.nix
deleted file mode 100644
index 8ff96e3..0000000
--- a/shell.nix
+++ /dev/null
@@ -1,5 +0,0 @@
-let
-  syndicate = builtins.getFlake "syndicate";
-  pkgs =
-    import <nixpkgs> { overlays = builtins.attrValues syndicate.overlays; };
-in pkgs.acpi_actor