Minimal repo to sync Substack emails from Gmail into Notion.

• Scheduled: every 2 hours, runs in the prod environment.
• Manual: Actions → “Sync Substack to Notion” → choose environment (test or prod).

• GMAIL_TOKEN_BASE64
• NOTION_API_TOKEN
• NOTION_DATABASE_ID

Optional:

• NOTION_API_TOKEN_2
• NOTION_DATABASE_ID_2
• DEEPSEEK_API_KEY

The script expects these property names (exact match):

• Name (title)
• Date (date)
• 发件人 (select)
• 类型 (select)
• URL (url)
• 提及公司 (multi-select)
• 状态 (select) — only required in DB1 and used to set 待处理

Generate a single-line base64 string from your Gmail OAuth token JSON:

base64 -i gmail_token_for_github.json | tr -d '\n'

Paste the output into the GMAIL_TOKEN_BASE64 secret.