Added help/-c options and added patch for zig 0.13.0 build. Also switched to zig 0.14.x and added user input.

src/main.zig

@@ -1,4 +1,5 @@
 const std = @import("std");
+const eql = std.mem.eql;
 
 
 pub fn main() !void {
@@ -6,10 +7,31 @@ pub fn main() !void {
     defer _ = gpa.deinit();
     const allocator = gpa.allocator();
 
+    const stdin = std.io.getStdIn().reader();
+    const stdout = std.io.getStdOut().writer();
+    
+    const args = try std.process.argsAlloc(allocator);
+    defer std.process.argsFree(allocator, args);
+    
+    var path: []const u8 = undefined;
+
+    if (args.len > 2) {
+        if (eql(u8, args[1], "-c")) {
+            path = args[2];
+        } 
+    }
+    else if (args.len == 2) {
+        if (eql(u8, args[1], "-h") or eql(u8, args[1], "help")) {
+            try stdout.print("(opt) -c /path/to/json_file\n", .{});
+            try stdout.print("(opt) help / -h", .{});
+            std.posix.exit(1);
+        }
+    }
+
     const env = try std.process.getEnvVarOwned(allocator, "USER");
     defer allocator.free(env);
 
-    const path = try std.fmt.allocPrint(allocator, "/home/{s}/.config/lister/data.json", .{env});
+    path = try std.fmt.allocPrint(allocator, "/home/{s}/.config/lister/data.json", .{env});
     defer allocator.free(path);
 
     const file = try std.fs.cwd().openFile(path, .{});
@@ -27,8 +49,19 @@ pub fn main() !void {
 
     const json = try std.json.parseFromSlice(Smths, allocator, data, .{});
     defer json.deinit();
-
+    
+    var buff: [256]u8 = undefined;
+    try stdout.print("Enter name: ", .{});
+    const inp_wthd = try stdin.readUntilDelimiter(buff[0..], '\n');
+   
+    var found = false; 
     for (json.value) |smth| {
-        std.debug.print("{s} -> {s}\n", .{smth.name, smth.desc});
+        if (eql(u8, smth.name, inp_wthd)) {
+            try stdout.print("{s} -> {s}\n", .{smth.name, smth.desc});
+            found = true;
+        }
+    }
+    if (!found) {
+           try stdout.print("Bad value :(", .{});
     }
 }