diff --git a/src/backend/base.ts b/src/backend/base.ts
index 62bb029..31f6eaa 100644
--- a/src/backend/base.ts
+++ b/src/backend/base.ts
@@ -1,4 +1,4 @@
-import { BackendSettings, Config } from "../types/config";
+import { BackendSettings, ProfileConfig } from "../types/config";
 import { Task } from "../types/task";
 
 export abstract class Backend<C extends BackendSettings> {
@@ -16,7 +16,7 @@ export abstract class Backend<C extends BackendSettings> {
     return config as C;
   }
 
-  public async remind(config: Config, tasks: Task[]): Promise<void> {
+  public async remind(config: ProfileConfig, tasks: Task[]): Promise<void> {
     const cfg = config?.backend?.[this.name] as Partial<C> | undefined;
 
     if (cfg?.enable !== true) {
diff --git a/src/backend/index.ts b/src/backend/index.ts
index 17aa8ab..9683523 100644
--- a/src/backend/index.ts
+++ b/src/backend/index.ts
@@ -1,6 +1,6 @@
 import dayjs from "dayjs";
 import { Task, TaskDatabase } from "../types/task";
-import { Config } from "../types/config";
+import { ProfileConfig } from "../types/config";
 import { NtfySH } from "./ntfy";
 import { Debug } from "./debug";
 
@@ -13,7 +13,7 @@ const backends = [
  * Iterates through all the database notifications for current time
  * and triggers the notification using specified backends in the config.
  */
-export async function remind(config: Config, db: TaskDatabase) {
+export async function remind(config: ProfileConfig, db: TaskDatabase) {
   const now = dayjs().format("HH:mm");  
   
   await run(config, db, db[now]);
@@ -23,7 +23,7 @@ export async function remind(config: Config, db: TaskDatabase) {
   }
 }
 
-async function run(config: Config, db: TaskDatabase, tasks?: Task[]) {
+async function run(config: ProfileConfig, db: TaskDatabase, tasks?: Task[]) {
   if(!tasks) {
     return;
   }
diff --git a/src/cli/index.ts b/src/cli/index.ts
index faeed85..bbf122d 100644
--- a/src/cli/index.ts
+++ b/src/cli/index.ts
@@ -7,11 +7,12 @@ import { notify, scan, test } from "../runner";
 const getOptions = () => program
   .name("obsidian-tasks-reminder")
   .version("0.0.1")
-  .requiredOption("-c, --config <file>", "sets the path to the YAML file with configuration")  
+  .requiredOption("-c, --config <file>", "sets the path to the YAML file with configuration")    
   .option("-x, --set <arg>", "overrides the config option for this specific run (arg: <key>=<name>, i.e. backend.ntfy.enable=false", (v: string, prev: string[]) => prev.concat([v]), [])  
   .option("-t, --test", "evaluates the query, applies the mapper and prints to stdout the notifications about to be trigger, without actual triggering them")
   .option("-s, --scan", "scans new tasks for future notifications and generates the database")
-  .option("-n, --notify", "reads the generated database and triggers notifications if any")  
+  .option("-n, --notify", "reads the generated database and triggers notifications if any")    
+  .option("-p, --profile <name>", "limits the current operation only to specified profile. If missing, all profiles will be affected")
   .parse()
   .opts<CLIOptions>();
 
@@ -39,17 +40,17 @@ const getOptions = () => program
     }
 
     if (options.test) {      
-      await test(config);
+      await test(config, options.profile);
       return;
     }
   
     if (options.scan) {
-      await scan(config);
+      await scan(config, options.profile);
       return;
     }
 
     if (options.notify) {
-      await notify(config);
+      await notify(config, options.profile);
       return;
     }
   }
diff --git a/src/loader/index.ts b/src/loader/index.ts
index a69d10b..f033b71 100644
--- a/src/loader/index.ts
+++ b/src/loader/index.ts
@@ -10,7 +10,7 @@ import { jsMapper } from "../util/code";
 /**
  * Returns all tasks from specified directory and filters them with optional query.
  */
-export async function loadTasks(directories: string[], query?: string): Promise<Task[]> {
+export async function loadTasks(directories: string[], query?: string, exclude?: string): Promise<Task[]> {
   const ctx = {
     now: dayjs(),
     LOWEST: TaskPriority.LOWEST,
@@ -21,8 +21,9 @@ export async function loadTasks(directories: string[], query?: string): Promise<
     HIGHEST: TaskPriority.HIGHEST
   };
 
-  const filter = query && jsMapper<Task, boolean>(query, ctx);
-  const tasks = await Promise.all(directories.map(readTasksFromDirectory));
+  const excludeFn = exclude ? jsMapper<string, boolean>(exclude, {}) : () => false;
+  const filter = query && jsMapper<Task, boolean>(query, ctx);  
+  const tasks = await Promise.all(directories.map(readTasksFromDirectory(excludeFn)));
   
   return tasks.flat().filter(t => filter ? filter(t) : true);
 }
@@ -30,26 +31,28 @@ export async function loadTasks(directories: string[], query?: string): Promise<
 /**
  * Read all files in specific directory and returns all tasks from those files.
  */
-async function readTasksFromDirectory(directory: string): Promise<Task[]> {
-  return walk(directory, readTasksFromFile);
+function readTasksFromDirectory(excludeFn: (path: string) => boolean) {
+  return async (directory: string) => walk(directory, readTasksFromFile, excludeFn);
 }
 
 /**
  * Walks through a specific directory recursively and invokes visitor on each file.
  * Returns a flat list of items returned by visitors.
  */
-async function walk<T>(directory: string, visitor: (path: string) => Promise<T[]>): Promise<T[]> {  
+async function walk<T>(directory: string, visitor: (path: string) => Promise<T[]>, excludeFn: (path: string) => boolean): Promise<T[]> {  
   const list = [];
 
   for(const file of fs.readdirSync(directory)) {
     const path = `${directory}/${file}`;  
 
     if (fs.statSync(path).isDirectory()) {
-      const items = await walk(path, visitor);
+      const items = await walk(path, visitor, excludeFn);
       list.push(...items);
     } else if (path.endsWith("md") || (path.endsWith("MD"))) {      
-      const items = await visitor(path);
-      list.push(...items);
+      if (!excludeFn(path)) {        
+        const items = await visitor(path);
+        list.push(...items);        
+      }      
     }
   }
 
diff --git a/src/runner/index.ts b/src/runner/index.ts
index abfe757..4a46716 100644
--- a/src/runner/index.ts
+++ b/src/runner/index.ts
@@ -2,10 +2,10 @@ import { loadTasks } from "../loader";
 import { createDatabase, dumpDatabase } from "../database/serializer";
 import { loadDatabase } from "../database/deserializer";
 import { remind } from "../backend";
-import { Config } from "../types/config";
+import { Config, ProfileConfig } from "../types/config";
 
-export async function test(config: Config) {
-  const tasks = await loadTasks(config.sources, config.query);
+export const test = handleProfile(async config => {
+  const tasks = await loadTasks(config.sources, config.query, config.exclude);
   const db = createDatabase(tasks);
 
   for (const time of Object.keys(db)) {
@@ -17,14 +17,30 @@ export async function test(config: Config) {
 
     console.log();
   }
-}
+});
 
-export async function scan(config: Config) {
-  const tasks = await loadTasks(config.sources, config.query);  
+export const scan = handleProfile(async config => {
+  const tasks = await loadTasks(config.sources, config.query, config.exclude);  
   dumpDatabase(config.databaseFile, tasks);
-}
+});
 
-export async function notify(config: Config) {
+export const notify = handleProfile(async config => {
   const db = loadDatabase(config.databaseFile);
   remind(config, db);
+});
+
+function handleProfile(handler: (profile: ProfileConfig) => Promise<void>) {
+  return async (config: Config, profile?: string) => {
+    if (profile !== undefined) {
+      const cfg = config.profiles[profile];
+
+      if (cfg === undefined) {
+        throw new Error(`Undefined profile: ${profile}`);      
+      }
+
+      return handler(cfg);
+    }
+
+    return await Promise.all(Object.values(config.profiles).map(handler));
+  };
 }
\ No newline at end of file
diff --git a/src/types/cli.ts b/src/types/cli.ts
index 72f74c3..aef3e47 100644
--- a/src/types/cli.ts
+++ b/src/types/cli.ts
@@ -1,5 +1,6 @@
 export type CLIOptions = {
   config: string;
+  profile?: string;
   test: boolean;
   scan: boolean;
   notify: boolean;
diff --git a/src/types/config.ts b/src/types/config.ts
index 83b91c7..1044585 100644
--- a/src/types/config.ts
+++ b/src/types/config.ts
@@ -1,6 +1,12 @@
 export type Config = {
+  profiles: Record<string, ProfileConfig>;
+};
+
+export type ProfileConfig = {
+  enable: boolean;
   sources: string[];
   query?: string;  
+  exclude?: string;
   defaultTime?: string;
   databaseFile: string;
   backend: Record<string, unknown>;
diff --git a/src/util/code.ts b/src/util/code.ts
index 1d80745..7edf72c 100644
--- a/src/util/code.ts
+++ b/src/util/code.ts
@@ -1,4 +1,11 @@
+import dayjs from "dayjs";
+
+const standardContext = {
+  dayjs
+};
+
 export function jsMapper<I, O>(code: string, context: Record<string, unknown>): (task: I) => O {
-  const filter = new Function('$', ...Object.keys(context), code);
-  return (task: I) => filter(task, ...Object.values(context));
+  const ctx = { ...standardContext, ...context };
+  const filter = new Function('$', ...Object.keys(ctx), code);
+  return (task: I) => filter(task, ...Object.values(ctx));
 }
\ No newline at end of file