I tried to replicate this with 'guix environment --ad-hoc brasero -- brasero' but I didn't get a segfault. Can you provide any more information? architecture? desktop environment? -- Efraim Flashner אפרים פלשנר GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted