wip/bupstash 0.12.0 NetBSD

Bupstash is a tool for encrypted backups - if you need secure backups, Bupstash is the tool for you.

Bupstash was designed to have:

* Efficient deduplication - Bupstash can store thousands of encrypted directory snapshots using a fraction of the space encrypted tarballs would require. * Strong privacy - Data is encrypted client side and the repository never needs has access to the decryption keys. * Offline decryption keys - Backups do not require the decryption key be anywhere near an at-risk server or computer. * Key/value tagging with search - all while keeping the tags fully encrypted. * Great performance on slow networks - Bupstash really strives to work well on high latency networks like cellular and connections to far-off lands. * Secure remote access controls - Ransomware, angry spouses, and disgruntled business partners will be powerless to delete your remote backups. * Efficient incremental backups - Bupstash knows what it backed up last time and skips that work. * Fantastic performance with low ram usage - Bupstash won't bog down your production servers. * Safety against malicious attacks - Bupstash is written in a memory safe language to dramatically reduce the attack surface over the network.