What you need to do and pay attention to when starting a company are as follows:

1. Formulation of a business plan: A business plan is a task that must be done before starting a company. It includes the company's development goals, market analysis, sales strategy, financial budget, etc.

2. Register a company: According to local company registration regulations, registering a company needs to prepare relevant materials and submit them to the local Industrial and Commercial Bureau for review.

3. Trademark registration: If the company has its own brand, it needs to register a trademark to protect its intellectual property rights.

4. Financial management: After opening a company, you need to pay attention to financial management, including fund management, account management, tax payment, etc.

5. Recruit employees: Recruit suitable employees and build a team according to the company's needs.

6. Marketing: After opening a company, it is necessary to carry out marketing to increase the company's visibility and business volume.

In terms of allocating equity and responsibilities, allocations can be made based on the level of input and contribution of each partner. For example, if a partner's investment accounts for a larger proportion of the company's total funds, his equity ratio should also be correspondingly higher; if a partner is responsible for the management and operation of the company, his responsibilities should also be correspondingly larger. . The distribution of equity and responsibilities should be clearly agreed before the company is registered and reflected in the company's articles of association. At the same time, partners must also establish good communication and collaboration relationships to avoid conflicts and disagreements.