diff --git a/conveyorlc/README.md b/conveyorlc/README.md
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+++ b/conveyorlc/README.md
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+# conveyorlc
+
+This is an attempt to create a base environment and we need.
+Nix just has one version, so we have to use that.
+
+- openmpi
+- boost@1.72 (with mpi bindings)
+- conduit@0.8.4 +hdf5
+- openbabel@3.0.0 ~python ~gui
+
+Note that we are just missing conduit (@vsoch is going to make a nix package).
diff --git a/conveyorlc/devbox.json b/conveyorlc/devbox.json
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+++ b/conveyorlc/devbox.json
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+{
+  "packages": [
+    "boost172", 
+    "openbabel", 
+    "python3",
+    "openmpi",
+    "hdf5",
+    "hdf5-mpi"
+  ],
+  "shell": {
+    "init_hook": null
+  }
+}
diff --git a/conveyorlc/devenv.nix b/conveyorlc/devenv.nix
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+++ b/conveyorlc/devenv.nix
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+{ pkgs, ... }:
+
+{
+  # https://devenv.sh/basics/
+  env.GREET = "devenv";
+
+  # https://devenv.sh/packages/
+  packages = [ pkgs.openmpi pkgs.boost172 pkgs.openbabel pkgs.python3, pkgs.hdf5, pkgs.hdf5-mpi ];
+
+  enterShell = ''
+    hello
+    git --version
+  '';
+
+  # https://devenv.sh/languages/
+  languages.nix.enable = true;
+
+  # https://devenv.sh/scripts/
+  scripts.hello.exec = "echo hello from $GREET";
+
+  # https://devenv.sh/pre-commit-hooks/
+  # pre-commit.hooks.shellcheck.enable = true;
+
+  # https://devenv.sh/processes/
+  # processes.ping.exec = "ping example.com";
+}
diff --git a/conveyorlc/devenv.yaml b/conveyorlc/devenv.yaml
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+++ b/conveyorlc/devenv.yaml
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+inputs:
+  nixpkgs:
+    url: github:NixOS/nixpkgs/master
diff --git a/conveyorlc/shell.nix b/conveyorlc/shell.nix
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+++ b/conveyorlc/shell.nix
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+{ pkgs ? import <nixpkgs> {} }:
+pkgs.mkShell {
+  buildInputs = [
+    pkgs.openmpi
+    pkgs.boost172
+    pkgs.openbabel
+    pkgs.python3
+    pkgs.hdf5
+    pkgs.hdf5-mpi
+  ];
+}
diff --git a/conveyorlc/uptodate.yaml b/conveyorlc/uptodate.yaml
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+++ b/conveyorlc/uptodate.yaml
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+dockerbuild:
+
+  build_args:
+    boost_version:
+      key: boost
+      versions:
+        - "172"