diff --git a/greenwood.config.js b/greenwood.config.js
index e913c0891..45f4a3b14 100644
--- a/greenwood.config.js
+++ b/greenwood.config.js
@@ -15,11 +15,11 @@ export default {
   staticRouter: true,
   interpolateFrontmatter: true,
   plugins: [
-    ...greenwoodPluginGraphQL(),
-    ...greenwoodPluginPolyfills(),
+    greenwoodPluginGraphQL(),
+    greenwoodPluginPolyfills(),
     greenwoodPluginPostCss(),
-    ...greenwoodPluginImportJson(),
-    ...greenwoodPluginImportCss(),
+    greenwoodPluginImportJson(),
+    greenwoodPluginImportCss(),
     {
       type: 'rollup',
       name: 'rollup-plugin-analyzer',
@@ -34,7 +34,7 @@ export default {
         ];
       }
     },
-    ...greenwoodPluginIncludeHTML(),
+    greenwoodPluginIncludeHTML(),
     ...greenwoodPluginRendererPuppeteer()
   ],
   markdown: {
diff --git a/packages/cli/src/commands/build.js b/packages/cli/src/commands/build.js
index 27f78eaf5..e5ce43348 100644
--- a/packages/cli/src/commands/build.js
+++ b/packages/cli/src/commands/build.js
@@ -11,10 +11,7 @@ const runProductionBuild = async (compilation) => {
     try {
       const { prerender } = compilation.config;
       const outputDir = compilation.context.outputDir;
-      const defaultPrerender = (compilation.config.plugins.filter(plugin => plugin.type === 'renderer' && plugin.isGreenwoodDefaultPlugin) || []).length === 1
-        ? compilation.config.plugins.filter(plugin => plugin.type === 'renderer')[0].provider(compilation)
-        : {};
-      const customPrerender = (compilation.config.plugins.filter(plugin => plugin.type === 'renderer' && !plugin.isGreenwoodDefaultPlugin) || []).length === 1
+      const prerenderPlugin = (compilation.config.plugins.filter(plugin => plugin.type === 'renderer') || []).length === 1
         ? compilation.config.plugins.filter(plugin => plugin.type === 'renderer')[0].provider(compilation)
         : {};
 
@@ -22,7 +19,7 @@ const runProductionBuild = async (compilation) => {
         fs.mkdirSync(outputDir);
       }
 
-      if (prerender || customPrerender.prerender) {
+      if (prerender || prerenderPlugin.prerender) {
         // start any servers if needed
         const servers = [...compilation.config.plugins.filter((plugin) => {
           return plugin.type === 'server';
@@ -42,14 +39,10 @@ const runProductionBuild = async (compilation) => {
           return Promise.resolve(server);
         }));
 
-        if (customPrerender.workerUrl) {
-          await preRenderCompilationWorker(compilation, customPrerender);
-        } else if (customPrerender.customUrl) {
-          await preRenderCompilationCustom(compilation, customPrerender);
-        } else if (defaultPrerender && prerender) {
-          await preRenderCompilationWorker(compilation, defaultPrerender);
+        if (prerenderPlugin.workerUrl) {
+          await preRenderCompilationWorker(compilation, prerenderPlugin);
         } else {
-          reject('This is an unhandled pre-rendering case!  Please report.');
+          await preRenderCompilationCustom(compilation, prerenderPlugin);
         }
       } else {
         await staticRenderCompilation(compilation);
diff --git a/packages/cli/src/lifecycles/config.js b/packages/cli/src/lifecycles/config.js
index 53ccbb06b..7e5ad7301 100644
--- a/packages/cli/src/lifecycles/config.js
+++ b/packages/cli/src/lifecycles/config.js
@@ -100,31 +100,38 @@ const readAndMergeConfig = async() => {
 
         if (plugins && plugins.length > 0) {
           plugins.forEach(plugin => {
-            if (!plugin.type || pluginTypes.indexOf(plugin.type) < 0) {
-              reject(`Error: greenwood.config.js plugins must be one of type "${pluginTypes.join(', ')}". got "${plugin.type}" instead.`);
-            }
+            const flattened = (Array.isArray(plugin) ? plugin : [plugin]).flat();
 
-            if (!plugin.provider || typeof plugin.provider !== 'function') {
-              const providerTypeof = typeof plugin.provider;
+            flattened.forEach(plugin => {
+              if (!plugin.type || pluginTypes.indexOf(plugin.type) < 0) {
+                reject(`Error: greenwood.config.js plugins must be one of type "${pluginTypes.join(', ')}". got "${plugin.type}" instead.`);
+              }
 
-              reject(`Error: greenwood.config.js plugins provider must be a function. got ${providerTypeof} instead.`);
-            }
+              if (!plugin.provider || typeof plugin.provider !== 'function') {
+                const providerTypeof = typeof plugin.provider;
 
-            if (!plugin.name || typeof plugin.name !== 'string') {
-              const nameTypeof = typeof plugin.name;
+                reject(`Error: greenwood.config.js plugins provider must be a function. got ${providerTypeof} instead.`);
+              }
 
-              reject(`Error: greenwood.config.js plugins must have a name. got ${nameTypeof} instead.`);
-            }
+              if (!plugin.name || typeof plugin.name !== 'string') {
+                const nameTypeof = typeof plugin.name;
+
+                reject(`Error: greenwood.config.js plugins must have a name. got ${nameTypeof} instead.`);
+              }
+            });
+
+            customConfig.plugins = [
+              ...customConfig.plugins,
+              ...flattened
+            ];
           });
 
-          // if user provides a custom renderer, replace ours with theirs
-          if (plugins.filter(plugin => plugin.type === 'renderer').length === 1) {
+          // if user provided a custom renderer, filter out Greenwood's default renderer
+          if (customConfig.plugins.filter(plugin => plugin.type === 'renderer').length > 1) {
             customConfig.plugins = customConfig.plugins.filter((plugin) => {
-              return plugin.type !== 'renderer';
+              return plugin.type !== 'renderer' || plugin.type === 'renderer' && !plugin.isGreenwoodDefaultPlugin;
             });
           }
-
-          customConfig.plugins = customConfig.plugins.concat(plugins);
         }
 
         if (devServer && Object.keys(devServer).length > 0) {