In reply to @robert:funklause.de
Any idea what to do if Element won't let me leave a room? I don't get new messages in that room and can no longer post to it. But leaving it just doesn't work on desktop and on Android the spinning wheel never stops spinning when I try to leave the room.

I'm trying to convert the element-web build to build from source: https://github.com/NixOS/nixpkgs/pull/172928

I'm running into the following error:

nix-env failed:
warning: ignoring the user-specified setting 'restrict-eval', because it is a restricted setting and you are not a trusted user
error: while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/.gc-of-borg-outpaths.nix:47:12, called from undefined position:
while evaluating anonymous function at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/pkgs/top-level/release-lib.nix:123:6, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/lib/attrsets.nix:414:43:
while evaluating 'hydraJob' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/lib/customisation.nix:218:14, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/pkgs/top-level/release-lib.nix:123:14:
while evaluating the attribute 'drvPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/lib/customisation.nix:235:13:
while evaluating the attribute 'drvPath' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/lib/customisation.nix:203:13:
while evaluating the attribute 'configurePhase' of the derivation 'element-desktop-1.10.12' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/pkgs/stdenv/generic/make-derivation.nix:278:7:
while evaluating 'importJSON' at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/lib/trivial.nix:305:16, called from /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/pkgs/development/tools/yarn2nix-moretea/yarn2nix/default.nix:255:17:
cannot read '/nix/store/mc1xxs1k72265yxy4f74r3al8j3shfap-source/package.json', since path '/nix/store/frvz7x58khqis4fzq9g5lgmrrw6m8rf3-source.drv' is not valid, at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/mr-est/ofborg-evaluator-3/lib/trivial.nix:306:24

I thought that I could avoid having to download the package.json since it's included in the src, but maybe not?

In reply to @dandellion:dodsorf.as
I wouldnt be surprised if that'd lead to an IFD

In reply to @dandellion:dodsorf.as
basically when you have to do things in nix based on what's inside a derivation, it moves realising that derivation to the evaluation step. Which is obviously problematic and banned in nixpkgs

In reply to @dandellion:dodsorf.as
I hope you manage to crack it!

In reply to @dandellion:dodsorf.as
The absolute end-goal for the element packages would probably be to package matrix-react-sdk separately and using that build element-web and using that to build the electron app. But that's like, prohibitively difficult I think