Enable ngx_stream_ssl_preread_module on Nginx

Is is possible to enable ngx_stream_ssl_preread_module ?

services.nginx = {
    enable = true;
    additionalModules = [ pkgs.nginxModules.ngx_stream_ssl_preread_module ];

gives me
error: attribute 'ngx_stream_ssl_preread_module' missing, at /etc/nixos/custom/nginx.nix:26:27

I can’t find any documentation about what modules can be loaded with additionalModules = [ pkgs.nginxModules.* ]

$ nix repl
> :l <nixpkgs>
nginxModules.(and then hit tab)

Thanks a lot for the tip @peterhoeg !

I get :

nginxModules.akamai-token-validate          nginxModules.modsecurity                    nginxModules.sla
nginxModules.aws-auth                       nginxModules.modsecurity-nginx              nginxModules.slowfs-cache
nginxModules.brotli                         nginxModules.moreheaders                    nginxModules.sorted-querystring
nginxModules.cache-purge                    nginxModules.mpeg-ts                        nginxModules.spnego-http-auth
nginxModules.coolkit                        nginxModules.naxsi                          nginxModules.statsd
nginxModules.dav                            nginxModules.ngx_aws_auth                   nginxModules.stream-sts
nginxModules.develkit                       nginxModules.opentracing                    nginxModules.sts
nginxModules.echo                           nginxModules.override                       nginxModules.subsFilter
nginxModules.fancyindex                     nginxModules.overrideDerivation             nginxModules.sysguard
nginxModules.fastcgi-cache-purge            nginxModules.pagespeed                      nginxModules.upload
nginxModules.fluentd                        nginxModules.pam                            nginxModules.upstream-check
nginxModules.http_proxy_connect_module_v18  nginxModules.pinba                          nginxModules.upstream-tarantool
nginxModules.http_proxy_connect_module_v19  nginxModules.push-stream                    nginxModules.url
nginxModules.ipscrub                        nginxModules.recurseForDerivations          nginxModules.video-thumbextractor
nginxModules.limit-speed                    nginxModules.rtmp                           nginxModules.vod
nginxModules.live                           nginxModules.secure-token                   nginxModules.vts
nginxModules.lua                            nginxModules.set-misc
nginxModules.lua-upstream                   nginxModules.shibboleth

Does it mean I can’t use ngx_stream_ssl_preread_module ?

Does it mean I can’t use ngx_stream_ssl_preread_module ?

That module is not part of nixpkgs, correct, but that doesn’t mean you cannot build it yourself. The easiest way to do this is to check out nixpkgs and modify pkgs/servers/http/nginx/modules.nix. Then build against your local checkout.