pairs

Build it

pairs is an app: nothing can depend on it. Clone it from the registry and build it with the cairn tool:

git clone https://cairn.registry.nexthub.sh/git/iamnbutler/pairs.git
cd pairs && git checkout v0.1.0 && cairn build --release

Depends on

cairn ^0.2.2
cairn_json ^0.1.0

Versions

Version	Published	Commit	Claims	Docs
0.1.3	Oct 25, 2026	`8eaf4a3aa5`	25 active	docs
0.1.2	Oct 25, 2026	`5a687c4c65`	25 active	docs
0.1.1	Oct 25, 2026	`1cc8529af3`	25 active	docs
0.1.0	Oct 25, 2026	`51e6950fa1`	25 active	docs

Claims in 0.1.0

Every id this package has issued, as its claims.lock held them at this version. An id never moves or changes meaning: the registry refuses a version that drops, renumbers or redefines one. The claim pages show each claim by place, with what it does and its evidence.

Id	Kind	Status	Claim
`pairs^1`	place	active	Pairs window
`pairs^2`	move	active	Turn a card
`pairs^3`	move	active	New Game
`pairs^4`	move	active	Open a pack
`pairs^5`	move	active	Cancel loading
`pairs^6`	place	active	Pairs menu
`pairs^7`	place	active	Packs submenu
`pairs^8`	move	active	Open the menu
`pairs^9`	move	active	New Game
`pairs^10`	move	active	A bundled pack
`pairs^11`	move	active	A pack in the packs folder
`pairs^12`	move	active	Open Packs Folder
`pairs^20`	invariant	active	The board is a deal of the pack
`pairs^21`	invariant	active	At most two unmatched cards face up
`pairs^22`	invariant	active	Won exactly when every card is matched
`pairs^23`	invariant	active	The game can always be won
`pairs^24`	invariant	active	Moves count pairs turned
`pairs^25`	invariant	active	A matched card stays matched
`pairs^26`	invariant	active	Best scores only improve
`pairs^27`	invariant	active	No request is lost
`pairs^28`	invariant	active	A late reply changes nothing
`pairs^29`	invariant	active	Only a finished pack changes the board
`pairs^30`	flow	active	Find a pair
`pairs^31`	flow	active	A mismatch
`pairs^32`	flow	active	Win a game