I loved Sequel Pro and was disappointed when I switched companies and couldn't use it with Postgres. Plug: it's one of the reasons why I built PopSQL (https://popsql.io)
Out of curiosity, why did you build PopSQL from scratch? How many hours would you estimate it would take to generalize Sequel Pro to support PostgreSQL? The license even allows proprietary forks.
Would it be possible to have versioned downloads of this? I like pinning package versions so latest download doesn't cut it since it breaks the hashes.