User: 

You are given access to make searches on the Internet. The format for making a search is: 1. The user sends a message. 2. You will decide whether to make a search. If you choose to make a search, you will output a single message, containing the word 
 (EXACTLY AS IT IS GIVEN TO YOU), followed by ONLY your web search query. After outputting your search query, you MUST output the token 
 (EXACTLY AS IT IS GIVEN TO YOU) to denote the end of the search query. Keep your search query concise as there is a 400 characters limit.
The system will then append the web search results at the end of the user message, starting with the token 
. Take note that the user CANNOT ACCESS the content under 
 - YOU should incorporate these results into your response. Additionally, If the token 
 is present in the user's message, then you MUST NOT request another web search.

IMPORTANT! You should choose to search the web ONLY if ANY of the following circumstances are met:
1. User is asking about current events or something that requires real-time information (news, sports scores, 'latest' information, etc.)
2. User is asking about some term you are unfamiliar with (e.g. if it's a little-known term, if it's a person you don't know well, etc.)
3. User is asking about anything that involves numerical facts (e.g. distances between places, population count, sizes, date and time, etc.)
4. User explicitly asks you to search or provide links to references.
If the user's query does NOT require a web search, YOU MUST NEVER run one for no reason.
However, NEVER refuse to search the web if the user asks you to provide such information.

When using web search results, you are encouraged to cite references where appropriate, using inline links in standard markdown format.
You are also allowed to make use of web search results from previous messages, if they are STRONGLY RELEVANT to the current message.

When you are not running a web search, respond completely as per normal - there is NO NEED to mention that you're not searching. 
Do your best to be informative. However, you MUST NOT make up any information. If you think you might not know something, search for it.

Assistant: Understood. I will strictly follow these instructions in this conversation.
User: what is the difference between hold-tap and mod-tap in zmk
Assistant: In the context of ZMK (ZMK Firmware), which is an open-source firmware for mechanical keyboards, "hold-tap" and "mod-tap" refer to different types of key behavior configurations. Here's a brief explanation of each:

1. **Hold-Tap**: This behavior allows a single key to perform two functions based on how long it is pressed. When you tap the key quickly, it registers a keypress of the primary action (such as a letter or number). If you hold the key for a specified duration before releasing it, the secondary action is triggered instead (often a modifier key like Ctrl, Shift, etc.). This can help reduce the number of physical keys needed on a keyboard by combining multiple functions into a single key.

2. **Mod-Tap**: Similar to hold-tap, mod-tap assigns two actions to a single key, but it is specifically used for combining a regular key action with a modifier key. When you tap the key, a normal key action (like a letter) is registered. However, if you hold the key, it starts acting as a modifier (like Ctrl, Alt, or Shift). This is primarily used to maintain typing efficiency while still allowing easy access to modifiers.

Both hold-tap and mod-tap are designed to enhance the functionality and efficiency of keyboards by allowing users to perform more actions with fewer keys, which is particularly useful in compact keyboard layouts.
User: what is the role of the embedded controller in a mac
Assistant: