diff --git a/README.md b/README.md
index aeb2ce5..78206c4 100644
--- a/README.md
+++ b/README.md
@@ -214,13 +214,9 @@ function rabbitmq_conn($timeout = 3) {
     return $connection;
 }
 
-function gh_client() {
-    $client = new \Github\Client();
-    $client->authenticate('githubusername',
-                          'githubpassword',
-                          Github\Client::AUTH_HTTP_PASSWORD);
-
-    return $client;
+function gh_secret() {
+    return "github webhook secret";
 }
 
+
 ```
diff --git a/config.public.json b/config.public.json
index d44b9a1..3aaeea9 100644
--- a/config.public.json
+++ b/config.public.json
@@ -6,6 +6,9 @@
         "path": "/var/lib/nginx/ofborg/logs/"
     },
     "runner": {
+        "repos": [
+            "nixos/nixpkgs"
+        ],
         "trusted_users": [
             "7c6f434c",
             "adisbladis",
diff --git a/nix/nixpkgs.json b/nix/nixpkgs.json
index d953cc8..18ce7f6 100644
--- a/nix/nixpkgs.json
+++ b/nix/nixpkgs.json
@@ -1,7 +1,7 @@
 {
   "url": "https://github.com/nixos/nixpkgs-channels.git",
-  "rev": "e860b651d6e297658e960c165fd231dbc0de1f9b",
-  "date": "2018-02-08T13:54:43+08:00",
-  "sha256": "0bsnarxm8g1r9qhk388as78cajidd5sqmmyvhmpsqqlzb3bn7ryv",
+  "rev": "c2fbd472a4ebaae739257a3df93aef25f19dd04f",
+  "date": "2018-02-23T08:08:30+00:00",
+  "sha256": "07mir6nqb98mbykabppgj4dli66h18qsyi4zqp640x22k6bkp2vp",
   "fetchSubmodules": true
 }
diff --git a/ofborg/src/acl.rs b/ofborg/src/acl.rs
index 805d304..90de362 100644
--- a/ofborg/src/acl.rs
+++ b/ofborg/src/acl.rs
@@ -2,16 +2,22 @@
 pub struct ACL {
     trusted_users: Vec<String>,
     known_users: Vec<String>,
+    repos: Vec<String>,
 }
 
 impl ACL {
-    pub fn new(trusted_users: Vec<String>, known_users: Vec<String>) -> ACL {
+    pub fn new(repos: Vec<String>, trusted_users: Vec<String>, known_users: Vec<String>) -> ACL {
         return ACL {
             trusted_users: trusted_users,
             known_users: known_users,
+            repos: repos,
         };
     }
 
+    pub fn is_repo_eligible(&self, name: &str) -> bool {
+        self.repos.contains(&name.to_lowercase())
+    }
+
     pub fn build_job_destinations_for_user_repo(
         &self,
         user: &str,
diff --git a/ofborg/src/bin/evaluation-filter.rs b/ofborg/src/bin/evaluation-filter.rs
new file mode 100644
index 0000000..525fe55
--- /dev/null
+++ b/ofborg/src/bin/evaluation-filter.rs
@@ -0,0 +1,93 @@
+extern crate ofborg;
+extern crate amqp;
+extern crate env_logger;
+
+extern crate hyper;
+extern crate hubcaps;
+extern crate hyper_native_tls;
+
+
+use std::env;
+
+use amqp::Basic;
+
+use ofborg::config;
+use ofborg::worker;
+use ofborg::tasks;
+use ofborg::easyamqp;
+use ofborg::easyamqp::TypedWrappers;
+
+
+fn main() {
+    let cfg = config::load(env::args().nth(1).unwrap().as_ref());
+    ofborg::setup_log();
+
+    println!("Hello, world!");
+
+
+    let mut session = easyamqp::session_from_config(&cfg.rabbitmq).unwrap();
+    println!("Connected to rabbitmq");
+
+    let mut channel = session.open_channel(1).unwrap();
+
+    channel
+        .declare_queue(easyamqp::QueueConfig {
+            queue: "mass-rebuild-check-jobs".to_owned(),
+            passive: false,
+            durable: true,
+            exclusive: false,
+            auto_delete: false,
+            no_wait: false,
+            arguments: None,
+        })
+        .unwrap();
+
+    channel
+        .declare_queue(easyamqp::QueueConfig {
+            queue: "mass-rebuild-check-inputs".to_owned(),
+            passive: false,
+            durable: true,
+            exclusive: false,
+            auto_delete: false,
+            no_wait: false,
+            arguments: None,
+        })
+        .unwrap();
+
+    channel
+        .bind_queue(easyamqp::BindQueueConfig {
+            queue: "mass-rebuild-check-inputs".to_owned(),
+            exchange: "github-events".to_owned(),
+            routing_key: Some("pull_request.nixos/nixpkgs".to_owned()),
+            no_wait: false,
+            arguments: None,
+        })
+        .unwrap();
+
+    channel.basic_prefetch(1).unwrap();
+    channel
+        .consume(
+            worker::new(tasks::evaluationfilter::EvaluationFilterWorker::new(
+                cfg.acl(),
+            )),
+            easyamqp::ConsumeConfig {
+                queue: "mass-rebuild-check-inputs".to_owned(),
+                consumer_tag: format!("{}-evaluation-filter", cfg.whoami()),
+                no_local: false,
+                no_ack: false,
+                no_wait: false,
+                exclusive: false,
+                arguments: None,
+            },
+        )
+        .unwrap();
+
+    channel.start_consuming();
+
+    println!("Finished consuming?");
+
+    channel.close(200, "Bye").unwrap();
+    println!("Closed the channel");
+    session.close(200, "Good Bye");
+    println!("Closed the session... EOF");
+}
diff --git a/ofborg/src/bin/stats.rs b/ofborg/src/bin/stats.rs
index 9d7ce78..ad3ada0 100644
--- a/ofborg/src/bin/stats.rs
+++ b/ofborg/src/bin/stats.rs
@@ -10,7 +10,6 @@ use ofborg::easyamqp::TypedWrappers;
 use hyper::server::{Request, Response, Server};
 
 use std::thread;
-use std::time::Duration;
 
 fn main() {
     let cfg = config::load(env::args().nth(1).unwrap().as_ref());
diff --git a/ofborg/src/config.rs b/ofborg/src/config.rs
index 0928f7e..ff886a4 100644
--- a/ofborg/src/config.rs
+++ b/ofborg/src/config.rs
@@ -58,6 +58,7 @@ pub struct LogStorage {
 #[derive(Serialize, Deserialize, Debug)]
 pub struct RunnerConfig {
     pub identity: String,
+    pub repos: Option<Vec<String>>,
     pub trusted_users: Option<Vec<String>>,
     pub known_users: Option<Vec<String>>,
 }
@@ -74,6 +75,9 @@ impl Config {
 
     pub fn acl(&self) -> acl::ACL {
         return acl::ACL::new(
+            self.runner.repos.clone().expect(
+                "fetching config's runner.repos",
+            ),
             self.runner.trusted_users.clone().expect(
                 "fetching config's runner.trusted_users",
             ),
diff --git a/ofborg/src/ghevent/common.rs b/ofborg/src/ghevent/common.rs
index a1d6c98..4f22abc 100644
--- a/ofborg/src/ghevent/common.rs
+++ b/ofborg/src/ghevent/common.rs
@@ -20,8 +20,4 @@ pub struct Repository {
 #[derive(Serialize, Deserialize, Debug)]
 pub struct Issue {
     pub number: u64,
-    pub pull_request: Option<PullRequest>,
 }
-
-#[derive(Serialize, Deserialize, Debug)]
-pub struct PullRequest {}
diff --git a/ofborg/src/ghevent/mod.rs b/ofborg/src/ghevent/mod.rs
index 41f184a..d50c400 100644
--- a/ofborg/src/ghevent/mod.rs
+++ b/ofborg/src/ghevent/mod.rs
@@ -1,5 +1,7 @@
 mod common;
 mod issuecomment;
+mod pullrequestevent;
 
 pub use self::issuecomment::IssueComment;
-pub use self::common::{Issue, Repository, User, Comment, PullRequest};
+pub use self::pullrequestevent::{PullRequest, PullRequestEvent, PullRequestAction, PullRequestState};
+pub use self::common::{Issue, Repository, User, Comment};
diff --git a/ofborg/src/ghevent/pullrequestevent.rs b/ofborg/src/ghevent/pullrequestevent.rs
new file mode 100644
index 0000000..11f685c
--- /dev/null
+++ b/ofborg/src/ghevent/pullrequestevent.rs
@@ -0,0 +1,80 @@
+use ofborg::ghevent::{Repository};
+
+#[derive(Serialize, Deserialize)]
+pub struct PullRequestEvent {
+    pub action: PullRequestAction,
+    pub number: u64,
+    pub repository: Repository,
+    pub pull_request: PullRequest,
+    pub changes: Option<PullRequestChanges>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct PullRequestChanges {
+    pub base: Option<BaseChange>,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct BaseChange {
+    #[serde(rename="ref")]
+    pub git_ref: ChangeWas,
+    pub sha: ChangeWas,
+}
+
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
+pub struct ChangeWas {
+    pub from: String,
+}
+
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
+#[serde(rename_all="snake_case")]
+pub enum PullRequestState {
+    Open,
+    Closed,
+}
+
+#[derive(Serialize, Deserialize, Debug, PartialEq)]
+#[serde(rename_all="snake_case")]
+pub enum PullRequestAction {
+    Assigned,
+    Unassigned,
+    ReviewRequested,
+    ReviewRequestRemoved,
+    Labeled,
+    Unlabeled,
+    Opened,
+    Edited,
+    Closed,
+    Reopened,
+    Synchronize,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct PullRequestRef {
+    #[serde(rename="ref")]
+    pub git_ref: String,
+    pub sha: String,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct PullRequest {
+    pub state: PullRequestState,
+    pub base: PullRequestRef,
+    pub head: PullRequestRef,
+}
+
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use serde_json;
+
+    #[test]
+    fn test_parse_pr_event() {
+        let data = include_str!("../../test-srcs/events/pr-changed-base.json");
+
+        let _p: PullRequestEvent =
+            serde_json::from_str(&data.to_string())
+            .expect("Should properly deserialize");
+    }
+}
diff --git a/ofborg/src/lib.rs b/ofborg/src/lib.rs
index 509efa1..f7c6fee 100644
--- a/ofborg/src/lib.rs
+++ b/ofborg/src/lib.rs
@@ -1,6 +1,12 @@
+
+#![recursion_limit="512"]
+
 #[macro_use]
 extern crate serde_derive;
 extern crate serde;
+
+
+#[cfg_attr(test, macro_use)]
 extern crate serde_json;
 
 #[macro_use]
diff --git a/ofborg/src/tasks/evaluationfilter.rs b/ofborg/src/tasks/evaluationfilter.rs
new file mode 100644
index 0000000..95f8fab
--- /dev/null
+++ b/ofborg/src/tasks/evaluationfilter.rs
@@ -0,0 +1,156 @@
+extern crate amqp;
+extern crate env_logger;
+
+use ofborg::ghevent;
+use ofborg::acl;
+use serde_json;
+
+use ofborg::message::{Repo, Pr, massrebuildjob};
+use ofborg::worker;
+use amqp::protocol::basic::{Deliver, BasicProperties};
+
+
+pub struct EvaluationFilterWorker {
+    acl: acl::ACL,
+}
+
+ impl EvaluationFilterWorker {
+    pub fn new(acl: acl::ACL) -> EvaluationFilterWorker {
+        return EvaluationFilterWorker {
+            acl: acl,
+        };
+    }
+}
+
+impl worker::SimpleWorker for EvaluationFilterWorker {
+    type J = ghevent::PullRequestEvent;
+
+    fn msg_to_job(
+        &mut self,
+        _: &Deliver,
+        _: &BasicProperties,
+        body: &Vec<u8>,
+    ) -> Result<Self::J, String> {
+        return match serde_json::from_slice(body) {
+            Ok(e) => Ok(e),
+            Err(e) => {
+                Err(format!(
+                    "Failed to deserialize job {:?}: {:?}",
+                    e,
+                    String::from_utf8(body.clone())
+                ))
+            }
+        };
+    }
+
+    fn consumer(&mut self, job: &ghevent::PullRequestEvent) -> worker::Actions {
+        if !self.acl.is_repo_eligible(&job.repository.full_name) {
+            info!("Repo not authorized ({})", job.repository.full_name);
+            return vec![worker::Action::Ack];
+        }
+
+        if job.pull_request.state != ghevent::PullRequestState::Open {
+            info!("PR is not open ({}#{})", job.repository.full_name, job.number);
+            return vec![worker::Action::Ack];
+        }
+
+        let interesting: bool = match job.action {
+            ghevent::PullRequestAction::Opened => true,
+            ghevent::PullRequestAction::Synchronize => true,
+            ghevent::PullRequestAction::Reopened => true,
+            ghevent::PullRequestAction::Edited => {
+                if let Some(ref changes) = job.changes {
+                    changes.base.is_some()
+                } else {
+                    false
+                }
+            },
+            _ => false,
+        };
+
+        if !interesting {
+            info!("Not interesting: {}#{} because of {:?}",
+                  job.repository.full_name, job.number, job.action
+            );
+
+            return vec![
+                worker::Action::Ack
+            ];
+        }
+
+        info!("Found {}#{} to be interesting because of {:?}",
+              job.repository.full_name, job.number, job.action
+        );
+        let repo_msg = Repo {
+            clone_url: job.repository.clone_url.clone(),
+            full_name: job.repository.full_name.clone(),
+            owner: job.repository.owner.login.clone(),
+            name: job.repository.name.clone(),
+        };
+
+        let pr_msg = Pr {
+            number: job.number.clone(),
+            head_sha: job.pull_request.head.sha.clone(),
+            target_branch: Some(job.pull_request.base.git_ref.clone()),
+        };
+
+        let msg = massrebuildjob::MassRebuildJob {
+            repo: repo_msg.clone(),
+            pr: pr_msg.clone(),
+        };
+
+        return vec![
+            worker::publish_serde_action(
+                None,
+                Some("mass-rebuild-check-jobs".to_owned()),
+                &msg
+            ),
+            worker::Action::Ack
+        ];
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use worker::SimpleWorker;
+    use super::*;
+
+    #[test]
+    fn changed_base() {
+        let data = include_str!("../../test-srcs/events/pr-changed-base.json");
+
+        let job: ghevent::PullRequestEvent =
+            serde_json::from_str(&data.to_string())
+            .expect("Should properly deserialize");
+
+        let mut worker = EvaluationFilterWorker::new(acl::ACL::new(
+            vec!["nixos/nixpkgs".to_owned()],
+            vec![],
+            vec![],
+        ));
+
+        assert_eq!(
+            worker.consumer(&job),
+            vec![
+                worker::publish_serde_action(
+                    None,
+                    Some("mass-rebuild-check-jobs".to_owned()),
+                    &massrebuildjob::MassRebuildJob {
+                        repo: Repo {
+                            clone_url: String::from("https://github.com/NixOS/nixpkgs.git"),
+                            full_name: String::from("NixOS/nixpkgs"),
+                            owner: String::from("NixOS"),
+                            name: String::from("nixpkgs"),
+                        },
+                        pr: Pr {
+                            number: 33299,
+                            head_sha: String::from("887e8b460a7d45ddb3bbdebe01447b251b3229e8"),
+                            target_branch: Some(String::from("staging")),
+                        },
+                    }
+                ),
+                worker::Action::Ack,
+            ]
+        );
+    }
+}
diff --git a/ofborg/src/tasks/mod.rs b/ofborg/src/tasks/mod.rs
index 663bab6..531e981 100644
--- a/ofborg/src/tasks/mod.rs
+++ b/ofborg/src/tasks/mod.rs
@@ -5,3 +5,4 @@ pub mod githubcommentfilter;
 pub mod githubcommentposter;
 pub mod statscollector;
 pub mod log_message_collector;
+pub mod evaluationfilter;
diff --git a/ofborg/test-srcs/events/pr-changed-base.json b/ofborg/test-srcs/events/pr-changed-base.json
new file mode 100644
index 0000000..6846bf8
--- /dev/null
+++ b/ofborg/test-srcs/events/pr-changed-base.json
@@ -0,0 +1,484 @@
+{
+            "action": "edited",
+            "number": 33299,
+            "pull_request": {
+                "url": "https://api.github.com/repos/NixOS/nixpkgs/pulls/33299",
+                "id": 160662893,
+                "html_url": "https://github.com/NixOS/nixpkgs/pull/33299",
+                "diff_url": "https://github.com/NixOS/nixpkgs/pull/33299.diff",
+                "patch_url": "https://github.com/NixOS/nixpkgs/pull/33299.patch",
+                "issue_url": "https://api.github.com/repos/NixOS/nixpkgs/issues/33299",
+                "number": 33299,
+                "state": "open",
+                "locked": false,
+                "title": "NixOS Tests: record an flv of the test",
+                "user": {
+                    "login": "grahamc",
+                    "id": 76716,
+                    "avatar_url": "https://avatars3.githubusercontent.com/u/76716?v=4",
+                    "gravatar_id": "",
+                    "url": "https://api.github.com/users/grahamc",
+                    "html_url": "https://github.com/grahamc",
+                    "followers_url": "https://api.github.com/users/grahamc/followers",
+                    "following_url": "https://api.github.com/users/grahamc/following{/other_user}",
+                    "gists_url": "https://api.github.com/users/grahamc/gists{/gist_id}",
+                    "starred_url": "https://api.github.com/users/grahamc/starred{/owner}{/repo}",
+                    "subscriptions_url": "https://api.github.com/users/grahamc/subscriptions",
+                    "organizations_url": "https://api.github.com/users/grahamc/orgs",
+                    "repos_url": "https://api.github.com/users/grahamc/repos",
+                    "events_url": "https://api.github.com/users/grahamc/events{/privacy}",
+                    "received_events_url": "https://api.github.com/users/grahamc/received_events",
+                    "type": "User",
+                    "site_admin": false
+                },
+                "body": "###### Motivation for this change\r\n\r\nSometimes tests can be hard to debug. Maybe recording an FLV from the VNC could help with that? To start, enable the recording on the flaky keymap test.\r\n\r\n###### Things done\r\n\r\n<!-- Please check what applies. Note that these are not hard requirements but merely serve as information for reviewers. -->\r\n\r\n- [ ] Tested using sandboxing ([nix.useSandbox](http://nixos.org/nixos/manual/options.html#opt-nix.useSandbox) on NixOS, or option `build-use-sandbox` in [`nix.conf`](http://nixos.org/nix/manual/#sec-conf-file) on non-NixOS)\r\n- Built on platform(s)\r\n   - [ ] NixOS\r\n   - [ ] macOS\r\n   - [ ] other Linux distributions\r\n- [ ] Tested via one or more NixOS test(s) if existing and applicable for the change (look inside [nixos/tests](https://github.com/NixOS/nixpkgs/blob/master/nixos/tests))\r\n- [ ] Tested compilation of all pkgs that depend on this change using `nix-shell -p nox --run \"nox-review wip\"`\r\n- [ ] Tested execution of all binary files (usually in `./result/bin/`)\r\n- [ ] Fits [CONTRIBUTING.md](https://github.com/NixOS/nixpkgs/blob/master/.github/CONTRIBUTING.md).\r\n\r\n---\r\n\r\n",
+                "created_at": "2018-01-01T22:39:24Z",
+                "updated_at": "2018-02-23T21:48:19Z",
+                "closed_at": null,
+                "merged_at": null,
+                "merge_commit_sha": "e145dffca8579ca8fac15497af5f166d1e1197a4",
+                "assignee": null,
+                "assignees": [],
+                "requested_reviewers": [],
+                "requested_teams": [],
+                "labels": [
+                    {
+                        "id": 737642262,
+                        "url": "https://api.github.com/repos/NixOS/nixpkgs/labels/10.rebuild-darwin:%200",
+                        "name": "10.rebuild-darwin: 0",
+                        "color": "eeffee",
+                        "default": false
+                    },
+                    {
+                        "id": 737642408,
+                        "url": "https://api.github.com/repos/NixOS/nixpkgs/labels/10.rebuild-linux:%200",
+                        "name": "10.rebuild-linux: 0",
+                        "color": "eeffee",
+                        "default": false
+                    }
+                ],
+                "milestone": null,
+                "commits_url": "https://api.github.com/repos/NixOS/nixpkgs/pulls/33299/commits",
+                "review_comments_url": "https://api.github.com/repos/NixOS/nixpkgs/pulls/33299/comments",
+                "review_comment_url": "https://api.github.com/repos/NixOS/nixpkgs/pulls/comments{/number}",
+                "comments_url": "https://api.github.com/repos/NixOS/nixpkgs/issues/33299/comments",
+                "statuses_url": "https://api.github.com/repos/NixOS/nixpkgs/statuses/887e8b460a7d45ddb3bbdebe01447b251b3229e8",
+                "head": {
+                    "label": "grahamc:flv-nixos-tests",
+                    "ref": "flv-nixos-tests",
+                    "sha": "887e8b460a7d45ddb3bbdebe01447b251b3229e8",
+                    "user": {
+                        "login": "grahamc",
+                        "id": 76716,
+                        "avatar_url": "https://avatars3.githubusercontent.com/u/76716?v=4",
+                        "gravatar_id": "",
+                        "url": "https://api.github.com/users/grahamc",
+                        "html_url": "https://github.com/grahamc",
+                        "followers_url": "https://api.github.com/users/grahamc/followers",
+                        "following_url": "https://api.github.com/users/grahamc/following{/other_user}",
+                        "gists_url": "https://api.github.com/users/grahamc/gists{/gist_id}",
+                        "starred_url": "https://api.github.com/users/grahamc/starred{/owner}{/repo}",
+                        "subscriptions_url": "https://api.github.com/users/grahamc/subscriptions",
+                        "organizations_url": "https://api.github.com/users/grahamc/orgs",
+                        "repos_url": "https://api.github.com/users/grahamc/repos",
+                        "events_url": "https://api.github.com/users/grahamc/events{/privacy}",
+                        "received_events_url": "https://api.github.com/users/grahamc/received_events",
+                        "type": "User",
+                        "site_admin": false
+                    },
+                    "repo": {
+                        "id": 52226505,
+                        "name": "nixpkgs",
+                        "full_name": "grahamc/nixpkgs",
+                        "owner": {
+                            "login": "grahamc",
+                            "id": 76716,
+                            "avatar_url": "https://avatars3.githubusercontent.com/u/76716?v=4",
+                            "gravatar_id": "",
+                            "url": "https://api.github.com/users/grahamc",
+                            "html_url": "https://github.com/grahamc",
+                            "followers_url": "https://api.github.com/users/grahamc/followers",
+                            "following_url": "https://api.github.com/users/grahamc/following{/other_user}",
+                            "gists_url": "https://api.github.com/users/grahamc/gists{/gist_id}",
+                            "starred_url": "https://api.github.com/users/grahamc/starred{/owner}{/repo}",
+                            "subscriptions_url": "https://api.github.com/users/grahamc/subscriptions",
+                            "organizations_url": "https://api.github.com/users/grahamc/orgs",
+                            "repos_url": "https://api.github.com/users/grahamc/repos",
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diff --git a/php/composer.json b/php/composer.json
index df67e8b..3928836 100644
--- a/php/composer.json
+++ b/php/composer.json
@@ -1,11 +1,5 @@
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diff --git a/php/composer.lock b/php/composer.lock
index a453b7f..351ea07 100644
--- a/php/composer.lock
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-            "version": "dev-master",
+            "version": "v2.7.2",
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@@ -330,6 +29,7 @@
                 "videlalvaro/php-amqplib": "self.version"
             },
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@@ -375,633 +75,13 @@
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-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Eric GELOEN",
-                    "email": "geloen.eric@gmail.com"
-                },
-                {
-                    "name": "Márk Sági-Kazár",
-                    "email": "mark.sagikazar@gmail.com"
-                }
-            ],
-            "description": "HTTPlug, the HTTP client abstraction for PHP",
-            "homepage": "http://httplug.io",
-            "keywords": [
-                "client",
-                "http"
-            ],
-            "time": "2017-12-18T08:01:36+00:00"
-        },
-        {
-            "name": "php-http/message",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/php-http/message.git",
-                "reference": "977edb516e3c0419d3477610b4b718c8a9da1575"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/php-http/message/zipball/977edb516e3c0419d3477610b4b718c8a9da1575",
-                "reference": "977edb516e3c0419d3477610b4b718c8a9da1575",
-                "shasum": ""
-            },
-            "require": {
-                "clue/stream-filter": "^1.4",
-                "php": ">=5.4",
-                "php-http/message-factory": "^1.0.2",
-                "psr/http-message": "^1.0"
-            },
-            "provide": {
-                "php-http/message-factory-implementation": "1.0"
-            },
-            "require-dev": {
-                "akeneo/phpspec-skip-example-extension": "^1.0",
-                "coduo/phpspec-data-provider-extension": "^1.0",
-                "ext-zlib": "*",
-                "guzzlehttp/psr7": "^1.0",
-                "henrikbjorn/phpspec-code-coverage": "^1.0",
-                "phpspec/phpspec": "^2.4",
-                "slim/slim": "^3.0",
-                "zendframework/zend-diactoros": "^1.0"
-            },
-            "suggest": {
-                "ext-zlib": "Used with compressor/decompressor streams",
-                "guzzlehttp/psr7": "Used with Guzzle PSR-7 Factories",
-                "slim/slim": "Used with Slim Framework PSR-7 implementation",
-                "zendframework/zend-diactoros": "Used with Diactoros Factories"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.6-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Http\\Message\\": "src/"
-                },
-                "files": [
-                    "src/filters.php"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Márk Sági-Kazár",
-                    "email": "mark.sagikazar@gmail.com"
-                }
-            ],
-            "description": "HTTP Message related tools",
-            "homepage": "http://php-http.org",
-            "keywords": [
-                "http",
-                "message",
-                "psr-7"
-            ],
-            "time": "2017-11-25T06:38:46+00:00"
-        },
-        {
-            "name": "php-http/message-factory",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/php-http/message-factory.git",
-                "reference": "a2809d4fe294ebe8879aec8d4d5bf21faa029344"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/php-http/message-factory/zipball/a2809d4fe294ebe8879aec8d4d5bf21faa029344",
-                "reference": "a2809d4fe294ebe8879aec8d4d5bf21faa029344",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.4",
-                "psr/http-message": "^1.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.0-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Http\\Message\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Márk Sági-Kazár",
-                    "email": "mark.sagikazar@gmail.com"
-                }
-            ],
-            "description": "Factory interfaces for PSR-7 HTTP Message",
-            "homepage": "http://php-http.org",
-            "keywords": [
-                "factory",
-                "http",
-                "message",
-                "stream",
-                "uri"
-            ],
-            "time": "2016-02-03T08:16:31+00:00"
-        },
-        {
-            "name": "php-http/promise",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/php-http/promise.git",
-                "reference": "1cc44dc01402d407fc6da922591deebe4659826f"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/php-http/promise/zipball/1cc44dc01402d407fc6da922591deebe4659826f",
-                "reference": "1cc44dc01402d407fc6da922591deebe4659826f",
-                "shasum": ""
-            },
-            "require-dev": {
-                "henrikbjorn/phpspec-code-coverage": "^1.0",
-                "phpspec/phpspec": "^2.4"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.0-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Http\\Promise\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Márk Sági-Kazár",
-                    "email": "mark.sagikazar@gmail.com"
-                },
-                {
-                    "name": "Joel Wurtz",
-                    "email": "joel.wurtz@gmail.com"
-                }
-            ],
-            "description": "Promise used for asynchronous HTTP requests",
-            "homepage": "http://httplug.io",
-            "keywords": [
-                "promise"
-            ],
-            "time": "2017-11-22T21:24:54+00:00"
-        },
-        {
-            "name": "psr/cache",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/php-fig/cache.git",
-                "reference": "78c5a01ddbf11cf731f1338a4f5aba23b14d5b47"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/cache/zipball/78c5a01ddbf11cf731f1338a4f5aba23b14d5b47",
-                "reference": "78c5a01ddbf11cf731f1338a4f5aba23b14d5b47",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.0.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Psr\\Cache\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "PHP-FIG",
-                    "homepage": "http://www.php-fig.org/"
-                }
-            ],
-            "description": "Common interface for caching libraries",
-            "keywords": [
-                "cache",
-                "psr",
-                "psr-6"
-            ],
-            "time": "2016-10-13T14:48:10+00:00"
-        },
-        {
-            "name": "psr/http-message",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/php-fig/http-message.git",
-                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/http-message/zipball/f6561bf28d520154e4b0ec72be95418abe6d9363",
-                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.0"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "1.0.x-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Psr\\Http\\Message\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "PHP-FIG",
-                    "homepage": "http://www.php-fig.org/"
-                }
-            ],
-            "description": "Common interface for HTTP messages",
-            "homepage": "https://github.com/php-fig/http-message",
-            "keywords": [
-                "http",
-                "http-message",
-                "psr",
-                "psr-7",
-                "request",
-                "response"
-            ],
-            "time": "2016-08-06T14:39:51+00:00"
-        },
-        {
-            "name": "symfony/options-resolver",
-            "version": "dev-master",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/symfony/options-resolver.git",
-                "reference": "95a16ad04c0ca3404c9286eca3b4a0c36cc46f7d"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/symfony/options-resolver/zipball/95a16ad04c0ca3404c9286eca3b4a0c36cc46f7d",
-                "reference": "95a16ad04c0ca3404c9286eca3b4a0c36cc46f7d",
-                "shasum": ""
-            },
-            "require": {
-                "php": "^7.1.3"
-            },
-            "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "4.1-dev"
-                }
-            },
-            "autoload": {
-                "psr-4": {
-                    "Symfony\\Component\\OptionsResolver\\": ""
-                },
-                "exclude-from-classmap": [
-                    "/Tests/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
-                }
-            ],
-            "description": "Symfony OptionsResolver Component",
-            "homepage": "https://symfony.com",
-            "keywords": [
-                "config",
-                "configuration",
-                "options"
-            ],
-            "time": "2017-12-14T19:50:39+00:00"
+            "time": "2018-02-11T19:28:00+00:00"
         }
     ],
     "packages-dev": [],
     "aliases": [],
-    "minimum-stability": "dev",
-    "stability-flags": {
-        "knplabs/github-api": 20,
-        "php-http/guzzle6-adapter": 20
-    },
+    "minimum-stability": "stable",
+    "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
diff --git a/php/mass-rebuild-filter.php b/php/mass-rebuild-filter.php
deleted file mode 100644
index a73ba29..0000000
--- a/php/mass-rebuild-filter.php
+++ /dev/null
@@ -1,113 +0,0 @@
-<?php
-
-require __DIR__ . '/config.php';
-
-use PhpAmqpLib\Message\AMQPMessage;
-
-# define('AMQP_DEBUG', true);
-$connection = rabbitmq_conn();
-$channel = $connection->channel();
-$channel->basic_qos(null, 1, true);
-
-
-$channel->queue_declare('mass-rebuild-check-jobs',
-                                               false, true, false, false);
-list($queueName, , ) = $channel->queue_declare('mass-rebuild-check-inputs',
-                                               false, true, false, false);
-$channel->queue_bind($queueName, 'github-events', 'pull_request.nixos/nixpkgs');
-
-echo "hi\n";
-
-function outrunner($msg) {
-    try {
-        runner($msg);
-    } catch (\PhpAmqpLib\Exception\AMQPProtocolChannelException $e) {
-        echo "Channel exception:\n";
-        var_dump($e);
-    }
-}
-
-function runner($msg) {
-    echo "Msg Sha: " . md5($msg->body) . "\n";
-    $in = json_decode($msg->body);
-
-    if (!\GHE\ACL::isRepoEligible($in->repository->full_name)) {
-        echo "Repo not authorized (" . $in->repository->full_name . ")\n";
-        $msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);
-        return true;
-    }
-
-    if ($in->pull_request->state != "open") {
-        echo "PR isn't open in the event\n";
-        $msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);
-        return true;
-    }
-
-    $client = gh_client();
-    $status = $client->api('pull_request')->show(
-        $in->repository->owner->login,
-        $in->repository->name,
-        $in->number);
-    if ($status['mergeable'] === false) {
-        echo "github says the PR isn't able to be merged\n";
-        $msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);
-        return true;
-    }
-    if ($status['state'] !== 'open') {
-        echo "github says the PR isn't open\n";
-        $msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);
-        return true;
-    }
-
-
-    $ok_events = [
-        'opened',
-        'created',
-        'synchronize',
-        'reopened',
-    ];
-
-    if (!in_array($in->action, $ok_events)) {
-        echo "Uninteresting event " . $in->action . "\n";
-        $msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);
-        return true;
-    } else {
-        echo "so-called interesting event on #" . $in->number . ": " . $in->action . "\n";
-    }
-
-    $forward = [
-        'original_payload' => $in,
-        'repo' => [
-            'owner' => $in->repository->owner->login,
-            'name' => $in->repository->name,
-            'full_name' => $in->repository->full_name,
-            'clone_url' => $in->repository->clone_url,
-        ],
-        'pr' => [
-            'number' => $in->number,
-            'target_branch' => $in->pull_request->base->ref,
-            'patch_url' => $in->pull_request->patch_url,
-            'head_sha' => $in->pull_request->head->sha,
-        ],
-    ];
-
-
-    echo "forwarding to mass-rebuild-check-jobs :)\n";
-
-    $message = new AMQPMessage(json_encode($forward),
-                               array(
-                                   'content_type' => 'application/json',
-                                   'delivery_mode' => AMQPMessage::DELIVERY_MODE_PERSISTENT,
-                               ));
-    $msg->delivery_info['channel']->basic_publish($message, '', 'mass-rebuild-check-jobs');
-    $msg->delivery_info['channel']->basic_ack($msg->delivery_info['delivery_tag']);
-    return true;
-}
-
-$consumerTag = 'massrebuildcheckfilter' . getmypid();
-$channel->basic_consume($queueName, $consumerTag, false, false, false, false, 'outrunner');
-while(count($channel->callbacks)) {
-    $channel->wait();
-}
-
-echo "Bye\n";
\ No newline at end of file
diff --git a/php/src/ACL.php b/php/src/ACL.php
deleted file mode 100644
index e9e14be..0000000
--- a/php/src/ACL.php
+++ /dev/null
@@ -1,16 +0,0 @@
-<?php
-namespace GHE;
-
-class ACL {
-    static public function getRepos() {
-        return [
-            'grahamc/elm-stuff',
-            'nixos/nixpkgs',
-            'nixos/nixpkgs-channels',
-        ];
-    }
-
-    static public function isRepoEligible($repo) {
-        return in_array(strtolower($repo), self::getRepos());
-    }
-}
\ No newline at end of file