Dynamically set sops.age_key

[srnnkls]

I have my private age key stored in 1password (but it could also live somewhere else). Now, I want to set the sops.age_key or MISE_SOPS_AGE_KEY dynamically like so:

# mise.toml

[env]
# second thing I tried
MISE_SOPS_AGE_KEY = "{{ exec(command='op read op://Employee/mise-demo/age_key', cache_key='age_key', cache_duration = '10s') }}"
_.file = ".env.yaml"

[tools]
age = "latest"
sops = "latest"

[settings]
# first thing I tried
sops.age_key = "{{ exec(command='op read op://Employee/mise-demo/age_key', cache_key='age_key', cache_duration = '10s') }}"
experimental = true

It seems that tera templates are not evaluated for sops settings? (Recursively) setting MISE_SOPS_AGE_KEY within mise's own env seems to come too late, though.