diff --git a/package.json b/package.json
index b98358d..8e34b94 100644
--- a/package.json
+++ b/package.json
@@ -55,6 +55,12 @@
                     "type": "string",
                     "default": "",
                     "description": "Absolute path to your Minecraft's shaderpacks folder."
+                },
+                "mcglsl.logLevel": {
+                  "type": "string",
+                  "default": "info",
+                  "description": "Verbosity of output logging.",
+                  "enum": ["debug", "info", "warn", "error"]
                 }
             }
         }
diff --git a/server/src/completionProvider.ts b/server/src/completionProvider.ts
index 5712352..8693c26 100644
--- a/server/src/completionProvider.ts
+++ b/server/src/completionProvider.ts
@@ -357,7 +357,7 @@ export const completions: CompletionItem[] = [
   }
 ]
 
-for (let i = 1; i < completions.length + 1; i++) {
-  completions[i - 1].data = i
-  completions[i - 1].kind = value
+for (let i = 0; i < completions.length; i++) {
+  completions[i].data = i
+  completions[i].kind = value
 }
\ No newline at end of file
diff --git a/server/src/config.ts b/server/src/config.ts
index 5069922..30591af 100644
--- a/server/src/config.ts
+++ b/server/src/config.ts
@@ -1,7 +1,7 @@
 import { dirname } from 'path'
 import { DidChangeConfigurationParams } from 'vscode-languageserver'
 import { GLSLangProvider } from './glslangValidator'
-import { serverLog as log } from './logging'
+import { configLog as log, loggers } from './logging'
 import { connection } from './server'
 
 const url = {
@@ -12,25 +12,22 @@ const url = {
 
 export let glslangReady = false
 
+// Maps the JSON settings from VSCode to an object
+interface Config {
+  shaderpacksPath: string
+  glslangValidatorPath: string
+  logLevel: 'error' | 'warn' | 'info' | 'debug'
+}
+
 export class ConfigProvider {
   private _config: Config
-  private _onChange: (settings: Config) => void
   private _glslang: GLSLangProvider
 
-  public constructor(func?: (confProv: ConfigProvider, settings: Config) => void) {
+  public constructor() {
     this._config = {
       shaderpacksPath: '',
-      glslangValidatorPath: ''
-    }
-
-    if (!func) {
-      this._onChange = (settings: Config) => {
-        onConfigChange(this, settings)
-      }
-    } else {
-      this._onChange = (settings: Config) => {
-        func(this, settings)
-      }
+      glslangValidatorPath: '',
+      logLevel: 'info'
     }
   }
 
@@ -42,14 +39,8 @@ export class ConfigProvider {
     return this._config
   }
 
-  public set onChange(func: (confProv: ConfigProvider, settings: Config) => void) {
-    this._onChange = (settings: Config) => {
-      func(this, settings)
-    }
-  }
-
   public onConfigChange = (change: DidChangeConfigurationParams) => {
-    this._onChange(change.settings.mcglsl as Config)
+    onConfigChange(this, change.settings.mcglsl as Config)
   }
 
   public set glslang(glslang: GLSLangProvider) {
@@ -61,39 +52,52 @@ export class ConfigProvider {
   }
 }
 
-interface Config {
-  shaderpacksPath: string
-  glslangValidatorPath: string
-}
-
 let supress = false
 
-async function onConfigChange(confProv: ConfigProvider, old: Config) {
+async function onConfigChange(confProv: ConfigProvider, current: Config) {
   if (!confProv.config == undefined &&
-    old.shaderpacksPath === confProv.config.shaderpacksPath &&
-    old.glslangValidatorPath === confProv.config.glslangValidatorPath) return
+    current.shaderpacksPath === confProv.config.shaderpacksPath &&
+    current.glslangValidatorPath === confProv.config.glslangValidatorPath &&
+    current.logLevel === confProv.config.logLevel) return
 
-  confProv.config = {shaderpacksPath: old['shaderpacksPath'], glslangValidatorPath: old['glslangValidatorPath']}
-  log.debug('new config: ' + JSON.stringify(old))
-  log.debug('old config: ' + JSON.stringify(confProv.config))
+    log.debug('new config: ' + JSON.stringify(current, Object.keys(current).sort()))
+    log.debug('old config: ' + JSON.stringify(confProv.config || {}, Object.keys(confProv.config).sort()))
+    confProv.config = {
+      shaderpacksPath: current['shaderpacksPath'], 
+      glslangValidatorPath: current['glslangValidatorPath'],
+      logLevel: current['logLevel'],
+    }
 
-  if (confProv.config.shaderpacksPath === '' || confProv.config.shaderpacksPath.replace(dirname(confProv.config.shaderpacksPath), '') !== '/shaderpacks') {
-    if (supress) return
-
-    log.error(`shaderpack path '${confProv.config.shaderpacksPath.replace(dirname(confProv.config.shaderpacksPath), '')}' not set or doesn't end in 'shaderpacks'`)
-    supress = true
-
-    const clicked = await connection.window.showErrorMessage(
-      'mcglsl.shaderpacksPath is not set or doesn\'t end in \'shaderpacks\'. Please set it in your settings.',
-      {title: 'Supress'}
-    )
-    supress = (clicked && clicked.title === 'Supress') ? true : false
-    return
+  // handle config.shaderpacksPath
+  {
+    if (confProv.config.shaderpacksPath === '' || confProv.config.shaderpacksPath.replace(dirname(confProv.config.shaderpacksPath), '') !== '/shaderpacks') {
+      if (supress) return
+  
+      log.error(`shaderpack path '${confProv.config.shaderpacksPath.replace(dirname(confProv.config.shaderpacksPath), '')}' not set or doesn't end in 'shaderpacks'`)
+      supress = true
+  
+      const clicked = await connection.window.showErrorMessage(
+        'mcglsl.shaderpacksPath is not set or doesn\'t end in \'shaderpacks\'. Please set it in your settings.',
+        {title: 'Supress'}
+      )
+      supress = (clicked && clicked.title === 'Supress') ? true : false
+      return
+    }
   }
 
-  if (!confProv.glslang.testExecutable()) {
-    await confProv.glslang.promptDownload()
-  } else {
-    glslangReady = true
+  // handle config.logLevel
+  {
+    for(let logger of loggers) {
+      logger.level = current.logLevel
+    }
+  }
+
+  // handle config.glslang
+  {
+    if (!confProv.glslang.testExecutable()) {
+      await confProv.glslang.promptDownload()
+    } else {
+      glslangReady = true
+    }
   }
 }
diff --git a/server/src/glslangValidator.ts b/server/src/glslangValidator.ts
index f236927..2b0d83a 100644
--- a/server/src/glslangValidator.ts
+++ b/server/src/glslangValidator.ts
@@ -48,6 +48,7 @@ export class GLSLangProvider {
 
       const response = await fetch(url[platform()])
       log.warn('glslangValidator download response status: ' + response.status )
+
       const zip = new unzip(await response.buffer())
 
       const bin = zip.readFile('bin' + glslangBin)
@@ -55,9 +56,7 @@ export class GLSLangProvider {
       writeFileSync(glslangPath, bin, {encoding: null, mode: 0o755})
 
       if (!this.testExecutable()) {
-        connection.window.showErrorMessage(
-          'Unexpected error occurred. Please try again'
-        )
+        connection.window.showErrorMessage('Unexpected error occurred. Please try again')
         return
       }
 
@@ -68,9 +67,7 @@ export class GLSLangProvider {
       connection.sendNotification('update-config', glslangPath)
     } catch (e) {
       log.error(`failed downloading glslangValidator ${e}`)
-      connection.window.showErrorMessage(
-        `Failed to install glslangValidator: ${e}`
-      )
+      connection.window.showErrorMessage(`Failed to install glslangValidator: ${e}`)
     }
   }
 
@@ -84,7 +81,7 @@ export class GLSLangProvider {
       stdout = (e.stdout.toString() as string)
     }
 
-    log.warn('glslangValidator first line stdout: "' + stdout.split('\n')[0] + '"')
+    log.debug('glslangValidator first line stdout: "' + stdout.split('\n')[0] + '"')
     const success = stdout.startsWith('Usage')
 
     if (success) {
diff --git a/server/src/logging.ts b/server/src/logging.ts
index e8ca47e..5f49e93 100644
--- a/server/src/logging.ts
+++ b/server/src/logging.ts
@@ -1,43 +1,31 @@
 import { Logger } from 'ts-log-debug'
 
+const defaultOpts = {
+  type: 'stdout',
+  layout: {type: 'basic'},
+  levels: ['debug', 'info', 'warn', 'error']
+}
+
 export const glslProviderLog = new Logger('glslangProvider')
-glslProviderLog.appenders.set('std-log', {
-  type: 'stdout',
-  layout: {type: 'basic'},
-  levels: ['info', 'warn', 'error']
-})
+glslProviderLog.appenders.set('std-log', defaultOpts)
 
-export const linterLog = new Logger('glslangProvider')
-linterLog.appenders.set('std-log', {
-  type: 'stdout',
-  layout: {type: 'basic'},
-  levels: ['info', 'warn', 'error']
-})
+export const linterLog = new Logger('linter')
+linterLog.appenders.set('std-log', defaultOpts)
 
-export const completionLog = new Logger('glslangProvider')
-completionLog.appenders.set('std-log', {
-  type: 'stdout',
-  layout: {type: 'basic'},
-  levels: ['info', 'warn', 'error']
-})
+export const completionLog = new Logger('completion')
+completionLog.appenders.set('std-log', defaultOpts)
 
-export const serverLog = new Logger('glslangProvider')
-serverLog.appenders.set('std-log', {
-  type: 'stdout',
-  layout: {type: 'basic'},
-  levels: ['info', 'warn', 'error']
-})
+export const serverLog = new Logger('server')
+serverLog.appenders.set('std-log', defaultOpts)
 
-export const linkLog = new Logger('glslangProvider')
-linkLog.appenders.set('std-log', {
-  type: 'stdout',
-  layout: {type: 'basic'},
-  levels: ['info', 'warn', 'error']
-})
+export const linkLog = new Logger('links')
+linkLog.appenders.set('std-log', defaultOpts)
 
-export const uriLog = new Logger('glslangProvider')
-uriLog.appenders.set('std-log', {
-  type: 'stdout',
-  layout: {type: 'basic'},
-  levels: ['info', 'warn', 'error']
-})
+export const uriLog = new Logger('uri')
+uriLog.appenders.set('std-log', defaultOpts)
+
+// not added to loggers as this should always log changes
+export const configLog = new Logger('config')
+configLog.appenders.set('std-log', defaultOpts)
+
+export const loggers = [glslProviderLog, linterLog, completionLog, serverLog, linkLog, uriLog]
\ No newline at end of file
diff --git a/server/src/uri.ts b/server/src/uri.ts
index 968fcaf..df9ee74 100644
--- a/server/src/uri.ts
+++ b/server/src/uri.ts
@@ -13,8 +13,8 @@ export class URI {
         log.debug(`already normalized ${uri}`)
         return uri
       }
-
-      return ''
+      // TODO windows
+      return uri.replace(/^file:\/\//, '').replace(/\\/, '/')
     }
 
     public static toFileURI(uri: string): string {