Dapp tools by DappHub
This repository contains the source code of several dapp tools hand-crafted and maintained by DappHub, along with various Nix expressions which are all bundled up into a Nix overlay.
All dependencies and tools can be automaticaly installed by running:
curl https://dapp.tools/install | sh
For a manual install, please follow the instructions below.
Make sure you are using Nix v2
curl https://nixos.org/nix/install | sh # Run this or login again to use Nix . "$HOME/.nix-profile/etc/profile.d/nix.sh"
Setup Cachix (optional)
If you want to cache the binary builds across several computers, Nix provides several ways of doing this, the most convenient being the Cachix service.
We maintain a public cache which you can use by installing Cachix
nix-env -if https://github.com/cachix/cachix/tarball/master --substituters https://cachix.cachix.org --trusted-public-keys cachix.cachix.org-1:eWNHQldwUO7G2VkjpnjDbWwy4KQ/HNxht7H4SSoMckM=
cachix use dapp
followed by restarting your Nix daemon (if on a multi-user Nix installation)
To install tools from this repository, you need to run
git clone --recursive https://github.com/dapphub/dapptools $HOME/.dapp/dapptools nix-env -f $HOME/.dapp/dapptools -iA dapp seth solc hevm ethsign
which will build and install these tools into your Nix profile, optionally fetching the binaries from the cache if you have configured it.
Installing custom solc versions
For a list of the supported
solc versions, check
You can specify a
solc version to run within
dapp --use solc:x.y.z test, but you can also install
solc "standalone" (i.e. add it to
$ nix-env -f $HOME/.dapp/dapptools -iA solc-versions.solc_0_5_0
solc that haven't yet landed in nixpkgs can be found under the
solc-versions.unreleased.solc_x_y_z. Again, refer to
./nix/solc/versions.nix for a list of supported
NOTE: not all versions are supported on macOS platforms.
Instructions for adding new versions of
solc can be found at