diff --git a/src/Tgstation.Server.Api/Models/Internal/Job.cs b/src/Tgstation.Server.Api/Models/Internal/Job.cs
index 7738cf0043..b4247221e1 100644
--- a/src/Tgstation.Server.Api/Models/Internal/Job.cs
+++ b/src/Tgstation.Server.Api/Models/Internal/Job.cs
@@ -33,7 +33,8 @@ namespace Tgstation.Server.Api.Models.Internal
 		/// When the <see cref="Job"/> was started
 		/// </summary>
 		[Permissions(DenyWrite = true)]
-		public DateTimeOffset StartedAt { get; set; }
+		[Required]
+		public DateTimeOffset? StartedAt { get; set; }
 
 		/// <summary>
 		/// When the <see cref="Job"/> stopped
@@ -45,7 +46,8 @@ namespace Tgstation.Server.Api.Models.Internal
 		/// If the <see cref="Job"/> was cancelled
 		/// </summary>
 		[Permissions(DenyWrite = true)]
-		public bool Cancelled { get; set; }
+		[Required]
+		public bool? Cancelled { get; set; }
 
 		/// <summary>
 		/// The <see cref="RightsType"/> of <see cref="CancelRight"/> if it can be cancelled
diff --git a/src/Tgstation.Server.Host/Components/Byond/WindowsByondInstaller.cs b/src/Tgstation.Server.Host/Components/Byond/WindowsByondInstaller.cs
index 41ae7207d3..3e5422c62d 100644
--- a/src/Tgstation.Server.Host/Components/Byond/WindowsByondInstaller.cs
+++ b/src/Tgstation.Server.Host/Components/Byond/WindowsByondInstaller.cs
@@ -5,6 +5,7 @@ using System.Globalization;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
+using Tgstation.Server.Host.Core;
 using Tgstation.Server.Host.IO;
 
 namespace Tgstation.Server.Host.Components.Byond
@@ -12,7 +13,7 @@ namespace Tgstation.Server.Host.Components.Byond
 	/// <summary>
 	/// <see cref="IByondInstaller"/> for windows systems
 	/// </summary>
-	sealed class WindowsByondInstaller : IByondInstaller
+	sealed class WindowsByondInstaller : IByondInstaller, IDisposable
 	{
 		/// <summary>
 		/// The URL format string for getting BYOND windows version {0}.{1} zipfile
@@ -51,6 +52,11 @@ namespace Tgstation.Server.Host.Components.Byond
 		/// </summary>
 		readonly ILogger<WindowsByondInstaller> logger;
 
+		/// <summary>
+		/// The <see cref="SemaphoreSlim"/> for the <see cref="WindowsByondInstaller"/>
+		/// </summary>
+		readonly SemaphoreSlim semaphore;
+
 		/// <summary>
 		/// If DirectX was installed
 		/// </summary>
@@ -66,9 +72,13 @@ namespace Tgstation.Server.Host.Components.Byond
 			this.ioManager = ioManager ?? throw new ArgumentNullException(nameof(ioManager));
 			this.logger = logger ?? throw new ArgumentNullException(nameof(logger));
 
+			semaphore = new SemaphoreSlim(1);
 			installedDirectX = false;
 		}
 
+		/// <inheritdoc />
+		public void Dispose() => semaphore.Dispose();
+
 		/// <inheritdoc />
 		public async Task CleanCache(CancellationToken cancellationToken)
 		{
@@ -103,8 +113,8 @@ namespace Tgstation.Server.Host.Components.Byond
 			var setNoPromptTrustedModeTask = SetNoPromptTrusted();
 
 			//after this version lummox made DD depend of directx lol
-			if (version.Major >= 512 && version.Minor >= 1427 && Monitor.TryEnter(this))
-				try
+			if (version.Major >= 512 && version.Minor >= 1427 && !installedDirectX)
+				using (await SemaphoreSlimContext.Lock(semaphore, cancellationToken).ConfigureAwait(false))
 				{
 					if (!installedDirectX)
 						//always install it, it's pretty fast and will do better redundancy checking than us
@@ -143,10 +153,6 @@ namespace Tgstation.Server.Host.Components.Byond
 							installedDirectX = true;
 						}
 				}
-				finally
-				{
-					Monitor.Exit(this);
-				}
 
 			await setNoPromptTrustedModeTask.ConfigureAwait(false);
 		}
diff --git a/src/Tgstation.Server.Host/Components/Compiler/DmbFactory.cs b/src/Tgstation.Server.Host/Components/Compiler/DmbFactory.cs
index 08fffc4f0a..e994fddfae 100644
--- a/src/Tgstation.Server.Host/Components/Compiler/DmbFactory.cs
+++ b/src/Tgstation.Server.Host/Components/Compiler/DmbFactory.cs
@@ -107,7 +107,7 @@ namespace Tgstation.Server.Host.Components.Compiler
 		{
 			if (job == null)
 				throw new ArgumentNullException(nameof(job));
-			if (job.DMApiValidated != true || job.Job.Cancelled || job.Job.ExceptionDetails != null || job.Job.StoppedAt == null)
+			if (job.DMApiValidated != true || job.Job.Cancelled.Value || job.Job.ExceptionDetails != null || job.Job.StoppedAt == null)
 				throw new InvalidOperationException("Cannot load incomplete compile job!");
 			if (setAsStagedInDb)
 				await databaseContextFactory.UseContext(async db =>
diff --git a/src/Tgstation.Server.Host/Controllers/DreamMakerController.cs b/src/Tgstation.Server.Host/Controllers/DreamMakerController.cs
index d25f914517..c9acbb0d6a 100644
--- a/src/Tgstation.Server.Host/Controllers/DreamMakerController.cs
+++ b/src/Tgstation.Server.Host/Controllers/DreamMakerController.cs
@@ -3,7 +3,6 @@ using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
 using System;
 using System.Linq;
-using System.Net;
 using System.Threading;
 using System.Threading.Tasks;
 using Tgstation.Server.Api.Rights;
@@ -73,25 +72,6 @@ namespace Tgstation.Server.Host.Controllers
 			return Json(job);
 		}
 
-		/// <inheritdoc />
-		[TgsAuthorize(DreamMakerRights.CancelCompile)]
-		public override async Task<IActionResult> Delete(long id, CancellationToken cancellationToken)
-		{
-			//alias for cancelling the latest job
-			var job = await DatabaseContext.CompileJobs.OrderByDescending(x => x.Job.StartedAt).Select(x => new Job { Id = x.Job.Id, StoppedAt = x.Job.StoppedAt }).FirstAsync(cancellationToken).ConfigureAwait(false);
-			if (job.StoppedAt != null)
-				return StatusCode((int)HttpStatusCode.Gone);
-			try
-			{
-				await jobManager.CancelJob(job, AuthenticationContext.User, cancellationToken).ConfigureAwait(false);
-			}
-			catch (InvalidOperationException)	//job already stopped
-			{
-				return StatusCode((int)HttpStatusCode.Gone);
-			}
-			return Ok();
-		}
-
 		/// <inheritdoc />
 		[TgsAuthorize(DreamMakerRights.SetDme)]
 		public override async Task<IActionResult> Update([FromBody] Api.Models.DreamMaker model, CancellationToken cancellationToken)
diff --git a/src/Tgstation.Server.Host/Controllers/ModelController.cs b/src/Tgstation.Server.Host/Controllers/ModelController.cs
index 69680526fe..c9ba839646 100644
--- a/src/Tgstation.Server.Host/Controllers/ModelController.cs
+++ b/src/Tgstation.Server.Host/Controllers/ModelController.cs
@@ -68,7 +68,7 @@ namespace Tgstation.Server.Host.Controllers
 		/// <param name="id">The ID of the model to delete</param>
 		/// <param name="cancellationToken">The <see cref="CancellationToken"/> for the operation</param>
 		/// <returns>A <see cref="Task{TResult}"/> resulting in the <see cref="IActionResult"/> of the operation</returns>
-		[HttpDelete]
+		[HttpDelete("{id}")]
 		public virtual Task<IActionResult> Delete(long id, CancellationToken cancellationToken) => Task.FromResult((IActionResult)NotFound());
 
 		/// <summary>
diff --git a/src/Tgstation.Server.Host/Core/JobManager.cs b/src/Tgstation.Server.Host/Core/JobManager.cs
index c72590d5c9..4d8359e438 100644
--- a/src/Tgstation.Server.Host/Core/JobManager.cs
+++ b/src/Tgstation.Server.Host/Core/JobManager.cs
@@ -10,7 +10,7 @@ using Tgstation.Server.Host.Models;
 namespace Tgstation.Server.Host.Core
 {
 	/// <inheritdoc />
-	sealed class JobManager : IHostedService, IJobManager
+	sealed class JobManager : IHostedService, IJobManager, IDisposable
 	{
 		/// <summary>
 		/// The <see cref="IServiceProvider"/> for the <see cref="JobManager"/>
@@ -31,6 +31,13 @@ namespace Tgstation.Server.Host.Core
 			jobs = new Dictionary<long, JobHandler>();
 		}
 
+		/// <inheritdoc />
+		public void Dispose()
+		{
+			foreach (var job in jobs)
+				job.Value.Dispose();
+		}
+
 		/// <summary>
 		/// Gets the <see cref="JobHandler"/> for a given <paramref name="job"/> if it exists
 		/// </summary>
@@ -104,6 +111,7 @@ namespace Tgstation.Server.Host.Core
 			{
 				var databaseContext = scope.ServiceProvider.GetRequiredService<IDatabaseContext>();
 				job.StartedAt = DateTimeOffset.Now;
+				job.Cancelled = false;
 				job.Instance = new Instance
 				{
 					Id = job.Instance.Id
@@ -134,7 +142,7 @@ namespace Tgstation.Server.Host.Core
 				await databaseContext.Initialize(cancellationToken).ConfigureAwait(false);
 
 				//mark all jobs as cancelled
-				var enumerator = await databaseContext.Jobs.Where(y => !y.Cancelled && y.StoppedAt == null).Select(y => y.Id).ToAsyncEnumerable().ToList(cancellationToken).ConfigureAwait(false);
+				var enumerator = await databaseContext.Jobs.Where(y => !y.Cancelled.Value && !y.StoppedAt.HasValue).Select(y => y.Id).ToAsyncEnumerable().ToList(cancellationToken).ConfigureAwait(false);
 				foreach(var I in enumerator)
 				{
 					var job = new Job { Id = I };
@@ -154,9 +162,6 @@ namespace Tgstation.Server.Host.Core
 				return x.Value.Wait(cancellationToken);
 			});
 			await Task.WhenAll(joinTasks).ConfigureAwait(false);
-			foreach (var job in jobs)
-				job.Value.Dispose();
-			jobs.Clear();
 		}
 
 		/// <inheritdoc />
@@ -175,6 +180,7 @@ namespace Tgstation.Server.Host.Core
 				user = new User { Id = user.Id };
 				databaseContext.Users.Attach(user);
 				job.CancelledBy = user;
+				//let either startup or cancellation set job.cancelled
 				await databaseContext.Save(cancellationToken).ConfigureAwait(false);
 			}
 		}
diff --git a/src/Tgstation.Server.Host/IO/DefaultIOManager.cs b/src/Tgstation.Server.Host/IO/DefaultIOManager.cs
index 865411b1b6..c4b235b3d7 100644
--- a/src/Tgstation.Server.Host/IO/DefaultIOManager.cs
+++ b/src/Tgstation.Server.Host/IO/DefaultIOManager.cs
@@ -265,9 +265,27 @@ namespace Tgstation.Server.Host.IO
 		/// <inheritdoc />
 		public async Task<byte[]> DownloadFile(Uri url, CancellationToken cancellationToken)
 		{
+			//DownloadDataTaskAsync can't be cancelled and is shittily written, don't use it
 			using (var wc = new WebClient())
-			using (cancellationToken.Register(() => wc.CancelAsync()))
-				return await wc.DownloadDataTaskAsync(url).ConfigureAwait(false);
+			{
+				var tcs = new TaskCompletionSource<byte[]>();
+				wc.DownloadDataCompleted += (a, b) =>
+				{
+					if (b.Error != null)
+						tcs.TrySetException(b.Error);
+					else if (b.Cancelled)
+						tcs.TrySetCanceled();
+					else
+						tcs.TrySetResult(b.Result);
+				};
+				wc.DownloadDataAsync(url);
+				using (cancellationToken.Register(() =>
+				{
+					wc.CancelAsync();	//cancelasync alone doesnt do it either! who wrote this!!
+					tcs.SetCanceled();
+				}))
+					return await tcs.Task.ConfigureAwait(false);
+			}	//ITS STILL FUCKING DOWNLOADING!!!
 		}
 
 		/// <inheritdoc />
diff --git a/tools/TGS.postman_collection.json b/tools/TGS.postman_collection.json
index d3692a376d..92ea78f73b 100644
--- a/tools/TGS.postman_collection.json
+++ b/tools/TGS.postman_collection.json
@@ -842,6 +842,49 @@
 							},
 							"response": []
 						},
+						{
+							"name": "Set ID 1 to only #botbus",
+							"request": {
+								"method": "POST",
+								"header": [
+									{
+										"key": "Accept",
+										"value": "application/json"
+									},
+									{
+										"key": "User-Agent",
+										"value": "Postman/1.0"
+									},
+									{
+										"key": "User-Agent",
+										"value": "Tgstation.Server.Api/4.0.0.0"
+									},
+									{
+										"key": "Content-Type",
+										"value": "application/json"
+									},
+									{
+										"key": "InstanceId",
+										"value": "1"
+									}
+								],
+								"body": {
+									"mode": "raw",
+									"raw": "{\n\t\"id\": 1,\n\t\"channels\": [\n\t\t{\n\t\t\t\"ircChannel\": \"#botbus\",\n\t\t\t\"isAdminChannel\": true,\n\t\t\t\"isWatchdogChannel\": true\n\t\t}\n\t\t]\n}"
+								},
+								"url": {
+									"raw": "localhost:5000/Chat",
+									"host": [
+										"localhost"
+									],
+									"port": "5000",
+									"path": [
+										"Chat"
+									]
+								}
+							},
+							"response": []
+						},
 						{
 							"name": "Create r4407 on Disord",
 							"request": {
@@ -1199,6 +1242,167 @@
 					],
 					"_postman_isSubFolder": true
 				},
+				{
+					"name": "Jobs",
+					"description": "",
+					"item": [
+						{
+							"name": "List Ids",
+							"request": {
+								"method": "GET",
+								"header": [
+									{
+										"key": "Accept",
+										"value": "application/json"
+									},
+									{
+										"key": "User-Agent",
+										"value": "Postman/1.0"
+									},
+									{
+										"key": "User-Agent",
+										"value": "Tgstation.Server.Api/4.0.0.0"
+									},
+									{
+										"key": "Content-Type",
+										"value": "application/json"
+									},
+									{
+										"key": "InstanceId",
+										"value": "1"
+									}
+								],
+								"body": {
+									"mode": "raw",
+									"raw": "{\n\t\"userId\": 1,\n\t\"byondRights\": -1,\n\t\"dreamDaemonRights\": -1,\n\t\"dreamMakerRights\": -1,\n\t\"repositoryRights\": -1,\n\t\"chatSettingsRights\": -1,\n\t\"configurationRights\": -1\n}"
+								},
+								"url": {
+									"raw": "localhost:5000/Job/List",
+									"host": [
+										"localhost"
+									],
+									"port": "5000",
+									"path": [
+										"Job",
+										"List"
+									]
+								}
+							},
+							"response": []
+						},
+						{
+							"name": "Get ID",
+							"request": {
+								"method": "GET",
+								"header": [
+									{
+										"key": "Accept",
+										"value": "application/json"
+									},
+									{
+										"key": "User-Agent",
+										"value": "Postman/1.0"
+									},
+									{
+										"key": "User-Agent",
+										"value": "Tgstation.Server.Api/4.0.0.0"
+									},
+									{
+										"key": "Content-Type",
+										"value": "application/json"
+									},
+									{
+										"key": "InstanceId",
+										"value": "1"
+									}
+								],
+								"body": {
+									"mode": "raw",
+									"raw": "{\n\t\"userId\": 1,\n\t\"byondRights\": -1,\n\t\"dreamDaemonRights\": -1,\n\t\"dreamMakerRights\": -1,\n\t\"repositoryRights\": -1,\n\t\"chatSettingsRights\": -1,\n\t\"configurationRights\": -1\n}"
+								},
+								"url": {
+									"raw": "localhost:5000/Job/10",
+									"host": [
+										"localhost"
+									],
+									"port": "5000",
+									"path": [
+										"Job",
+										"10"
+									]
+								}
+							},
+							"response": []
+						},
+						{
+							"name": "Cancel ID",
+							"request": {
+								"method": "DELETE",
+								"header": [
+									{
+										"key": "Accept",
+										"value": "application/json"
+									},
+									{
+										"key": "User-Agent",
+										"value": "Postman/1.0"
+									},
+									{
+										"key": "User-Agent",
+										"value": "Tgstation.Server.Api/4.0.0.0"
+									},
+									{
+										"key": "Content-Type",
+										"value": "application/json"
+									},
+									{
+										"key": "InstanceId",
+										"value": "1"
+									}
+								],
+								"body": {
+									"mode": "raw",
+									"raw": ""
+								},
+								"url": {
+									"raw": "localhost:5000/Job/11",
+									"host": [
+										"localhost"
+									],
+									"port": "5000",
+									"path": [
+										"Job",
+										"11"
+									]
+								}
+							},
+							"response": []
+						}
+					],
+					"event": [
+						{
+							"listen": "prerequest",
+							"script": {
+								"id": "a3f3a2f7-5700-48a9-88bf-d18ac2a1855c",
+								"type": "text/javascript",
+								"exec": [
+									""
+								]
+							}
+						},
+						{
+							"listen": "test",
+							"script": {
+								"id": "787a5a17-ad9c-4772-9052-85d81e87d4a9",
+								"type": "text/javascript",
+								"exec": [
+									""
+								]
+							}
+						}
+					],
+					"_postman_isSubFolder": true
+				},
 				{
 					"name": "Online Instance ID 1",
 					"request": {
@@ -1397,6 +1601,185 @@
 				}
 			]
 		},
+		{
+			"name": "Byond",
+			"description": "",
+			"item": [
+				{
+					"name": "List installed versions",
+					"request": {
+						"method": "GET",
+						"header": [
+							{
+								"key": "Accept",
+								"value": "application/json"
+							},
+							{
+								"key": "User-Agent",
+								"value": "Postman/1.0"
+							},
+							{
+								"key": "User-Agent",
+								"value": "Tgstation.Server.Api/4.0.0.0"
+							},
+							{
+								"key": "Content-Type",
+								"value": "application/json"
+							},
+							{
+								"key": "InstanceId",
+								"value": "1"
+							}
+						],
+						"body": {
+							"mode": "raw",
+							"raw": "{\n    \"id\": 1,\n    \"online\": false\n}"
+						},
+						"url": {
+							"raw": "localhost:5000/Byond/List",
+							"host": [
+								"localhost"
+							],
+							"port": "5000",
+							"path": [
+								"Byond",
+								"List"
+							]
+						}
+					},
+					"response": []
+				},
+				{
+					"name": "Read active version",
+					"request": {
+						"method": "GET",
+						"header": [
+							{
+								"key": "Accept",
+								"value": "application/json"
+							},
+							{
+								"key": "User-Agent",
+								"value": "Postman/1.0"
+							},
+							{
+								"key": "User-Agent",
+								"value": "Tgstation.Server.Api/4.0.0.0"
+							},
+							{
+								"key": "Content-Type",
+								"value": "application/json"
+							},
+							{
+								"key": "InstanceId",
+								"value": "1"
+							}
+						],
+						"body": {
+							"mode": "raw",
+							"raw": "{\n    \"id\": 1,\n    \"online\": false\n}"
+						},
+						"url": {
+							"raw": "localhost:5000/Byond",
+							"host": [
+								"localhost"
+							],
+							"port": "5000",
+							"path": [
+								"Byond"
+							]
+						}
+					},
+					"response": []
+				},
+				{
+					"name": "Set 511.1385 active",
+					"request": {
+						"method": "POST",
+						"header": [
+							{
+								"key": "Accept",
+								"value": "application/json"
+							},
+							{
+								"key": "User-Agent",
+								"value": "Postman/1.0"
+							},
+							{
+								"key": "User-Agent",
+								"value": "Tgstation.Server.Api/4.0.0.0"
+							},
+							{
+								"key": "Content-Type",
+								"value": "application/json"
+							},
+							{
+								"key": "InstanceId",
+								"value": "1"
+							}
+						],
+						"body": {
+							"mode": "raw",
+							"raw": "{\n    \"version\": {\n    \t\"major\": 511,\n    \t\"minor\": 1385\n    }\n}"
+						},
+						"url": {
+							"raw": "localhost:5000/Byond",
+							"host": [
+								"localhost"
+							],
+							"port": "5000",
+							"path": [
+								"Byond"
+							]
+						}
+					},
+					"response": []
+				},
+				{
+					"name": "Set 512.1441 active",
+					"request": {
+						"method": "POST",
+						"header": [
+							{
+								"key": "Accept",
+								"value": "application/json"
+							},
+							{
+								"key": "User-Agent",
+								"value": "Postman/1.0"
+							},
+							{
+								"key": "User-Agent",
+								"value": "Tgstation.Server.Api/4.0.0.0"
+							},
+							{
+								"key": "Content-Type",
+								"value": "application/json"
+							},
+							{
+								"key": "InstanceId",
+								"value": "1"
+							}
+						],
+						"body": {
+							"mode": "raw",
+							"raw": "{\n    \"version\": {\n    \t\"major\": 512,\n    \t\"minor\": 1441\n    }\n}"
+						},
+						"url": {
+							"raw": "localhost:5000/Byond",
+							"host": [
+								"localhost"
+							],
+							"port": "5000",
+							"path": [
+								"Byond"
+							]
+						}
+					},
+					"response": []
+				}
+			]
+		},
 		{
 			"name": "Login Admin Default",
 			"request": {