To enhance my education during the Marlowe Pioneers program (with simultaneous Emurgo Haskell Dev Pro course), I've been running NixOS as my daily driver for full immersion over the past two weeks or so (and loving it).

My google-foo is failing me regarding a declarative installation of the provided daedalus-4.10.0-marlowe_pioneers-21765.bin. While I'd prefer somehow declaring it globally in /etc/nixos/configuration.nix for now, alternative solutions are more than welcome.

1 Answer 1


the download is an installer. Running the installer will put an executable in ~/.local/bin/.

When I ran this executable I got an error. It's expecting a file /etc/localtime which I don't have and seems that it isnt standard on nixos.

You can edit this script (~/.local/bin/daedalus-marlowe_pioneers) to work around this. On line 9 perform the following diff.

- cat /etc/localtime > etc/localtime
+ echo "TZif2UTCTZif2UTC\rUTC0" > etc/localtime

This sets it to utc. I got this off another linux machine

I haven't done any more than launch the app. It does however now launch

  • Thanks. I was looking for a way to install it declaritively. NixOS generations are a (re)configuration feature I'm loving. May 31, 2022 at 19:51
  • By the way, I think you can set your timezone in /etc/nixos/configuration.nix and it will place that localtime link for you. I put time.timeZone = "America/Phoenix"; into the config of a fresh NixOS install, and a link localtime -> /etc/zoneinfo/America/Phoenix is now found in /etc. May 31, 2022 at 19:59
  • Given that the binary is not available from a standard repo, you cannot do this with ease afaik. (Like you can with, say, firefox or a project on github setup for nixos). Cheers for the headsup on timezone
    – waalge
    Jun 1, 2022 at 8:58

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