diff --git a/packages/mirage-unikernel-smtp-relay-hvt.0.0.1/opam b/packages/mirage-unikernel-smtp-relay-hvt.0.0.1/opam
new file mode 100644
index 0000000..becce23
--- /dev/null
+++ b/packages/mirage-unikernel-smtp-relay-hvt.0.0.1/opam
@@ -0,0 +1,48 @@
+# Generated by ./config.exe configure -t hvt --allocation-policy=best-fit (2022-01-25 15:50:36-00:00).
+opam-version: "2.0"
+name: "mirage-unikernel-relay-hvt"
+depends: [ "arp" { >= "3.0.0" & < "4.0.0"}
+           "dns-mirage" 
+           "domain-name" 
+           "ethernet" { >= "3.0.0" & < "4.0.0"}
+           "functoria-runtime" 
+           "git-mirage" 
+           "irmin" { >= "2.10.0"}
+           "irmin-git" 
+           "irmin-mirage" 
+           "irmin-mirage-git" 
+           "lwt" 
+           "mimic" 
+           "mirage" {build &  >= "3.10.0" & < "3.11.0"}
+           "mirage-bootvar-solo5" { >= "0.6.0" & < "0.7.0"}
+           "mirage-clock-freestanding" { >= "3.0.0" & < "5.0.0"}
+           "mirage-crypto-rng-mirage" { >= "0.8.0" & < "0.11.0"}
+           "mirage-logs" { >= "1.2.0" & < "2.0.0"}
+           "mirage-net-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-runtime" { >= "3.10.0" & < "3.11.0"}
+           "mirage-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-types" { >= "3.10.0" & < "3.11.0"}
+           "mirage-types-lwt" { >= "3.10.0" & < "3.11.0"}
+           "ocaml" {build &  >= "4.08.0"}
+           "ocamlbuild" {build}
+           "ocamlfind" {build}
+           "ppx_irmin" 
+           "ptt" 
+           "randomconv" 
+           "solo5-bindings-hvt" { >= "0.6.0" & < "0.7.0"}
+           "tcpip" { >= "7.0.0" & < "8.0.0"}
+]
+maintainer: "dummy"
+authors: "dummy"
+homepage: "dummy"
+bug-reports: "dummy"
+dev-repo: "git+https://example.com/nonexistent"
+build: [ "sh" "-exc" "cd relay && mirage configure -t hvt --allocation-policy=best-fit && mirage build" ]
+synopsis: "SMTP relay unikernel"
+install: [
+  [ "cp" "relay/relay.hvt" "%{bin}%/relay.hvt" ]
+  [ "strip" "%{bin}%/relay.hvt" ]
+  [ "cp" "relay/relay.hvt" "%{prefix}%/relay.hvt.debug" ]
+#  [ "cp" "README.md" "%{prefix}%/README.md" ]
+]
+url { src: "git+https://github.com/tarides/unikernels.git" }
diff --git a/packages/mirage-unikernel-smtp-signer-hvt.0.0.1/opam b/packages/mirage-unikernel-smtp-signer-hvt.0.0.1/opam
new file mode 100644
index 0000000..366cfa6
--- /dev/null
+++ b/packages/mirage-unikernel-smtp-signer-hvt.0.0.1/opam
@@ -0,0 +1,45 @@
+# Generated by ./config.exe configure -t hvt --allocation-policy=best-fit (2022-01-25 15:52:59-00:00).
+opam-version: "2.0"
+name: "mirage-unikernel-signer-hvt"
+depends: [ "arp" { >= "3.0.0" & < "4.0.0"}
+           "ca-certs-nss" 
+           "dns" 
+           "dns-client" 
+           "dns-mirage" 
+           "dns-tsig" 
+           "domain-name" 
+           "ethernet" { >= "3.0.0" & < "4.0.0"}
+           "functoria-runtime" 
+           "lwt" 
+           "mirage" {build &  >= "3.10.0" & < "3.11.0"}
+           "mirage-bootvar-solo5" { >= "0.6.0" & < "0.7.0"}
+           "mirage-clock-freestanding" { >= "3.0.0" & < "5.0.0"}
+           "mirage-crypto-rng-mirage" { >= "0.8.0" & < "0.11.0"}
+           "mirage-logs" { >= "1.2.0" & < "2.0.0"}
+           "mirage-net-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-runtime" { >= "3.10.0" & < "3.11.0"}
+           "mirage-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-types" { >= "3.10.0" & < "3.11.0"}
+           "mirage-types-lwt" { >= "3.10.0" & < "3.11.0"}
+           "ocaml" {build &  >= "4.08.0"}
+           "ocamlbuild" {build}
+           "ocamlfind" {build}
+           "ptt" 
+           "randomconv" 
+           "solo5-bindings-hvt" { >= "0.6.0" & < "0.7.0"}
+           "tcpip" { >= "7.0.0" & < "8.0.0"}
+]
+maintainer: "dummy"
+authors: "dummy"
+homepage: "dummy"
+bug-reports: "dummy"
+dev-repo: "git+https://example.com/nonexistent"
+build: [ "sh" "-exc" "cd signer && mirage configure -t hvt --allocation-policy=best-fit && mirage build" ]
+synopsis: "DKIM Signer unikernel"
+install: [
+  [ "cp" "signer/signer.hvt" "%{bin}%/signer.hvt" ]
+  [ "strip" "%{bin}%/signer.hvt" ]
+  [ "cp" "signer/signer.hvt" "%{prefix}%/signer.hvt.debug" ]
+#  [ "cp" "README.md" "%{prefix}%/README.md" ]
+]
+url { src: "git+https://github.com/tarides/unikernels.git" }
diff --git a/packages/mirage-unikernel-smtp-spamfilter-hvt.0.0.1/opam b/packages/mirage-unikernel-smtp-spamfilter-hvt.0.0.1/opam
new file mode 100644
index 0000000..99c7c3b
--- /dev/null
+++ b/packages/mirage-unikernel-smtp-spamfilter-hvt.0.0.1/opam
@@ -0,0 +1,41 @@
+# Generated by ./config.exe configure -t hvt --allocation-policy=best-fit (2022-01-25 15:54:25-00:00).
+opam-version: "2.0"
+name: "mirage-unikernel-spamfilter-hvt"
+depends: [ "arp" { >= "3.0.0" & < "4.0.0"}
+           "ca-certs-nss" 
+           "dns" 
+           "domain-name" 
+           "ethernet" { >= "3.0.0" & < "4.0.0"}
+           "functoria-runtime" 
+           "lwt" 
+           "mirage" {build &  >= "3.10.0" & < "3.11.0"}
+           "mirage-bootvar-solo5" { >= "0.6.0" & < "0.7.0"}
+           "mirage-clock-freestanding" { >= "3.0.0" & < "5.0.0"}
+           "mirage-crypto-rng-mirage" { >= "0.8.0" & < "0.11.0"}
+           "mirage-logs" { >= "1.2.0" & < "2.0.0"}
+           "mirage-net-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-runtime" { >= "3.10.0" & < "3.11.0"}
+           "mirage-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-types" { >= "3.10.0" & < "3.11.0"}
+           "mirage-types-lwt" { >= "3.10.0" & < "3.11.0"}
+           "ocaml" {build &  >= "4.08.0"}
+           "ocamlbuild" {build}
+           "ocamlfind" {build}
+           "ptt" 
+           "solo5-bindings-hvt" { >= "0.6.0" & < "0.7.0"}
+           "tcpip" { >= "7.0.0" & < "8.0.0"}
+]
+maintainer: "dummy"
+authors: "dummy"
+homepage: "dummy"
+bug-reports: "dummy"
+dev-repo: "git+https://example.com/nonexistent"
+build: [ "sh" "-exc" "cd spamfilter && mirage configure -t hvt --allocation-policy=best-fit && mirage build" ]
+synopsis: "A spamfilter unikernel"
+install: [
+  [ "cp" "spamfilter/spamfilter.hvt" "%{bin}%/spamfilter.hvt" ]
+  [ "strip" "%{bin}%/spamfilter.hvt" ]
+  [ "cp" "spamfilter/spamfilter.hvt" "%{prefix}%/spamfilter.hvt.debug" ]
+#  [ "cp" "README.md" "%{prefix}%/README.md" ]
+]
+url { src: "git+https://github.com/tarides/unikernels.git" }
diff --git a/packages/mirage-unikernel-smtp-submission-hvt.0.0.1/opam b/packages/mirage-unikernel-smtp-submission-hvt.0.0.1/opam
new file mode 100644
index 0000000..43eef17
--- /dev/null
+++ b/packages/mirage-unikernel-smtp-submission-hvt.0.0.1/opam
@@ -0,0 +1,54 @@
+# Generated by ./config.exe configure -t hvt --allocation-policy=best-fit (2022-01-25 15:55:30-00:00).
+opam-version: "2.0"
+name: "mirage-unikernel-submission-hvt"
+depends: [ "arp" { >= "3.0.0" & < "4.0.0"}
+           "art" 
+           "ca-certs-nss" 
+           "dns-certify" 
+           "dns-mirage" 
+           "domain-name" 
+           "emile" 
+           "ethernet" { >= "3.0.0" & < "4.0.0"}
+           "functoria-runtime" 
+           "git-mirage" 
+           "irmin" { >= "2.10.0"}
+           "irmin-git" 
+           "irmin-mirage" 
+           "irmin-mirage-git" 
+           "lwt" 
+           "mimic" 
+           "mirage" {build &  >= "3.10.0" & < "3.11.0"}
+           "mirage-bootvar-solo5" { >= "0.6.0" & < "0.7.0"}
+           "mirage-clock-freestanding" { >= "3.0.0" & < "5.0.0"}
+           "mirage-crypto-rng-mirage" { >= "0.8.0" & < "0.11.0"}
+           "mirage-logs" { >= "1.2.0" & < "2.0.0"}
+           "mirage-net-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-runtime" { >= "3.10.0" & < "3.11.0"}
+           "mirage-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-types" { >= "3.10.0" & < "3.11.0"}
+           "mirage-types-lwt" { >= "3.10.0" & < "3.11.0"}
+           "ocaml" {build &  >= "4.08.0"}
+           "ocamlbuild" {build}
+           "ocamlfind" {build}
+           "paf" 
+           "paf-le" { >= "0.0.8"}
+           "ppx_irmin" 
+           "ptt" 
+           "randomconv" 
+           "solo5-bindings-hvt" { >= "0.6.0" & < "0.7.0"}
+           "tcpip" { >= "7.0.0" & < "8.0.0"}
+]
+maintainer: "dummy"
+authors: "dummy"
+homepage: "dummy"
+bug-reports: "dummy"
+dev-repo: "git+https://example.com/nonexistent"
+build: [ "sh" "-exc" "cd submission && mirage configure -t hvt --allocation-policy=best-fit && mirage build" ]
+synopsis: "SMTP submission unikernel"
+install: [
+  [ "cp" "submission/submission.hvt" "%{bin}%/submission.hvt" ]
+  [ "strip" "%{bin}%/submission.hvt" ]
+  [ "cp" "submission/submission.hvt" "%{prefix}%/submission.hvt.debug" ]
+#  [ "cp" "README.md" "%{prefix}%/README.md" ]
+]
+url { src: "git+https://github.com/tarides/unikernels.git" }
diff --git a/packages/mirage-unikernel-smtp-verifier-hvt.0.0.1/opam b/packages/mirage-unikernel-smtp-verifier-hvt.0.0.1/opam
new file mode 100644
index 0000000..79e73d0
--- /dev/null
+++ b/packages/mirage-unikernel-smtp-verifier-hvt.0.0.1/opam
@@ -0,0 +1,44 @@
+# Generated by ./config.exe configure -t hvt --allocation-policy=best-fit (2022-01-25 15:58:19-00:00).
+opam-version: "2.0"
+name: "mirage-unikernel-verifier-hvt"
+depends: [ "arp" { >= "3.0.0" & < "4.0.0"}
+           "ca-certs-nss" 
+           "dns" 
+           "dns-certify" 
+           "dns-mirage" 
+           "domain-name" 
+           "ethernet" { >= "3.0.0" & < "4.0.0"}
+           "functoria-runtime" 
+           "lwt" 
+           "mirage" {build &  >= "3.10.0" & < "3.11.0"}
+           "mirage-bootvar-solo5" { >= "0.6.0" & < "0.7.0"}
+           "mirage-clock-freestanding" { >= "3.0.0" & < "5.0.0"}
+           "mirage-crypto-rng-mirage" { >= "0.8.0" & < "0.11.0"}
+           "mirage-logs" { >= "1.2.0" & < "2.0.0"}
+           "mirage-net-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-runtime" { >= "3.10.0" & < "3.11.0"}
+           "mirage-solo5" { >= "0.6.1" & < "0.7.0"}
+           "mirage-types" { >= "3.10.0" & < "3.11.0"}
+           "mirage-types-lwt" { >= "3.10.0" & < "3.11.0"}
+           "ocaml" {build &  >= "4.08.0"}
+           "ocamlbuild" {build}
+           "ocamlfind" {build}
+           "ptt" 
+           "solo5-bindings-hvt" { >= "0.6.0" & < "0.7.0"}
+           "tcpip" { >= "7.0.0" & < "8.0.0"}
+           "uri" 
+]
+maintainer: "dummy"
+authors: "dummy"
+homepage: "dummy"
+bug-reports: "dummy"
+dev-repo: "git+https://example.com/nonexistent"
+build: [ "sh" "-exc" "cd verifier && mirage configure -t hvt --allocation-policy=best-fit && mirage build" ]
+synopsis: "SMTP receiver unikernel"
+install: [
+  [ "cp" "verifier/verifier.hvt" "%{bin}%/verifier.hvt" ]
+  [ "strip" "%{bin}%/verifier.hvt" ]
+  [ "cp" "verifier/verifier.hvt" "%{prefix}%/verifier.hvt.debug" ]
+#  [ "cp" "README.md" "%{prefix}%/README.md" ]
+]
+url { src: "git+https://github.com/tarides/unikernels.git#main" }
diff --git a/packages/ptt.0.0.1~dev/opam b/packages/ptt.0.0.1~dev/opam
index bf5d6e7..71cba2d 100644
--- a/packages/ptt.0.0.1~dev/opam
+++ b/packages/ptt.0.0.1~dev/opam
@@ -41,8 +41,6 @@ depends: [
   "mirage-time-unix" {>= "2.0.0"}
   "base-threads" {with-test}
   "alcotest" {with-test}
-  "base-threads" {with-test}
-  "bos" {with-test}
   "lwt" {>= "5.4.0"}
   "mimic" {>= "0.0.1"}
   "mirage-clock" {>= "3.1.0"}