alt Hacker NewsSqlite smokes postgres on the same machine even with domain sockets [1]. This is before you get into using multiple sqlite database.
What features postgres offers over sqlite in the context of running on a single machine with a monolithic app? Application functions [2] means you can extend it however you need with the same language you use to build your application. It also has a much better backup and replication story thanks to litestream [3].
- [1] https://andersmurphy.com/2025/12/02/100000-tps-over-a-billio...
- [2] https://sqlite.org/appfunc.html
- [3] https://litestream.io/
The main problem with sqlite is the defaults are not great and you should really use it with separate read and write connections where the application manages the write queue rather than letting sqlite handle it.
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Thing is though - either of those options is still multiple orders of magnitude faster than running on a remote host. Either will work, either will scale way farther than you reasonably expect it to.
> Sqlite smokes postgres on the same machine even with domain sockets [1].
SQLite on the same machine is akin to calling fwrite. That's fine. This is also a system constraint as it forces a one-database-per-instance design, with no data shared across nodes. This is fine if you're putting together a site for your neighborhood's mom and pop shop, but once you need to handle a request baseline beyond a few hundreds TPS and you need to serve traffic beyond your local region then you have no alternative other than to have more than one instance of your service running in parallel. You can continue to shoehorn your one-database-per-service pattern onto the design, but you're now compelled to find "clever" strategies to sync state across nodes.
Those who know better to not do "clever" simply slap a Postgres node and call it a day.
FYI, the color gradient on your website is an easy tell that it was vibe coded: https://prg.sh/ramblings/Why-Your-AI-Keeps-Building-the-Same...
> Sqlite smokes postgres on the same machine even with domain sockets [1]
for inserts only into singe table with no indexes.
Also, I didn't get why sqlite was allowed to do batching and pgsql was not.