error: Refusing to evaluate package 'electron-42.11.18' in /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/development/tools/electron/binary/generic.nix:50 because it is marked as insecure

Known issues:
 - Electron version 42.11.18 is EOL

You can install it anyway by allowing this package, using the
following methods:

a) To temporarily allow all insecure packages, you can use an environment
   variable for a single invocation of the nix tools:

     $ export NIXPKGS_ALLOW_INSECURE=1
     
   Note: When using `nix shell`, `nix build`, `nix develop`, etc with a flake,
         then pass `--impure` in order to allow use of environment variables.
    
b) for `nixos-rebuild` you can add ‘electron-42.11.18’ to
   `nixpkgs.config.permittedInsecurePackages` in the configuration.nix,
   like so:

     {
       nixpkgs.config.permittedInsecurePackages = [
         "electron-42.11.18"
       ];
     }

c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
   ‘electron-42.11.18’ to `permittedInsecurePackages` in
   ~/.config/nixpkgs/config.nix, like so:

     {
       permittedInsecurePackages = [
         "electron-42.11.18"
       ];
     }


       at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/stdenv/generic/check-meta.nix:645:13
       … while calling the 'throw' builtin at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/stdenv/generic/check-meta.nix:645:13
       … while calling the '__seq' builtin at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/stdenv/generic/check-meta.nix:657:5
       … while calling 'handle' at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/stdenv/generic/check-meta.nix:623:5
       … from call site at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/stdenv/generic/check-meta.nix:686:19
       … while evaluating the attribute 'handled' at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/stdenv/generic/check-meta.nix:686:9
       … while calling anonymous lambda at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/lib/meta.nix:572:8
       … from call site at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/lib/meta.nix:527:5
       … while calling 'getExe' at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/lib/meta.nix:526:5
       … from call site at /nix/store/2ggqaxmakw75rnhr6gkknn3qbc8km39n-source/packages/vessel-browser/package.nix:71:19
       … while evaluating attribute 'installPhase' of derivation 'vessel-browser-0.1.200' at /nix/store/2ggqaxmakw75rnhr6gkknn3qbc8km39n-source/packages/vessel-browser/package.nix:54:3
       … while evaluating derivation 'vessel-browser-0.1.200'
  whose name attribute is located at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/stdenv/generic/make-derivation.nix:651:11
       … while calling the 'derivationStrict' builtin at «derivation-internal»:36:12
       … while calling the '__getAttr' builtin at «derivation-internal»:49:17
       … while evaluating the attribute 'outPath' at «derivation-internal»:49:7
       … while calling the '__isFunction' builtin at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/lib/trivial.nix:1147:5
       … while calling anonymous lambda at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/lib/trivial.nix:1144:5
       … from call site at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/lib/trivial.nix:1236:22
       … while calling 'toFunction' at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/lib/trivial.nix:1236:16
       … from call site at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/build-support/trivial-builders/default.nix:88:24
       … while evaluating attribute 'buildCommand' of derivation 'check-vessel-browser' at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/build-support/trivial-builders/default.nix:88:9
       … while evaluating derivation 'check-vessel-browser'
  whose name attribute is located at /nix/store/b2qy42pzwzyj0l0ha6q7p91w862793gf-source/pkgs/stdenv/generic/make-derivation.nix:651:11
       … while calling the 'derivationStrict' builtin at «derivation-internal»:36:12
       … while evaluating the attribute 'drvPath' at «derivation-internal»:50:7