$ mumi compose --done
Backtrace:
           3 (primitive-load "/gnu/store/gbp28chjw8z9c8h3j8p4h7xrz03…")
In mumi/client.scm:
   529:30  2 (compose-email #:close? _ #:reply-to-spec _)
     89:2  1 (reply-email-headers 72926 #:reply-to _ #:include-body? _)
In kolam/http.scm:
    121:4  0 (graphql-http-response _ _)

kolam/http.scm:121:4: In procedure graphql-http-response:
GraphQL query failed with non-2xx status code: #<<response> version: (1 . 1) code: 500 reason-phrase: "Internal Server Error" headers: ((server . "nginx") (date . #<date nanosecond: 0 second: 1 minute: 12 hour: 1 day: 4 month: 1 year: 2025 zone-offset: 0>) (transfer-encoding (chunked)) (connection close)) port: #<input-output: string 7fdac3060930>> ""

Looks like something there is causing a 500 error.

WDYT
-- 
all the best,
jgart