; 9fs 9front
    ; tar -xf /n/extra/cvsfs.tgz
    ; cd cvsfs


then, apply this patch.

    --- cvs.c	Fri Oct 15 16:09:40 2021
    +++ cvs.c	Fri Oct 15 16:13:12 2021
    ` -229,7 +229,7 `
     cvsopen(Sess *s)
     {
     	if (strcmp(s->method, "ext") == 0){
    +		if (cvspipe(s, "/bin/ssh", "-u") == 0)
    -		if (cvspipe(s, "/bin/ssh", "-l") == 0)
     			return nil;
     		if (cvspipe(s, "/bin/rx", "-l") == 0)
     			return nil;


then `mk` it.

    ; mk all
    ; mk install


then, add the ssh fingerprint of the host you want to connect to `$home/lib/sshthumbs`

    ; ssh anoncvs@anoncvs.ca.openbsd.org


    ; cvsfs :ext:anoncvs@anoncvs.ca.openbsd.org:/cvs src


it gets mounted on /n/cvs