diff --git a/private-build-plans.toml b/private-build-plans.toml
new file mode 100644
index 000000000..52d70580a
--- /dev/null
+++ b/private-build-plans.toml
@@ -0,0 +1,94 @@
+[buildPlans.IosevkaBrew]
+family = "Iosevka Brew"
+spacing = "term"
+serifs = "sans"
+noCvSs = true
+exportGlyphNames = false
+
+[buildPlans.IosevkaBrew.variants]
+inherits = "ss20"
+
+[buildPlans.IosevkaBrew.variants.design]
+four = "closed-serifless"
+six = "open-contour"
+seven = "curly-serifed"
+eight = "two-circles"
+nine = "closed-contour"
+capital-g = "toothless-rounded-serifless-hooked"
+g = "single-storey-serifless"
+i = "hooky"
+l = "serifed-semi-tailed"
+eszet = "traditional-serifless"
+guillemet = "straight"
+dollar = "open"
+cent = "open"
+
+[buildPlans.IosevkaBrew.variants.italic]
+four = "closed-serifless"
+six = "open-contour"
+seven = "curly-serifed"
+eight = "two-circles"
+nine = "closed-contour"
+capital-g = "toothless-rounded-serifless-hooked"
+g = "single-storey-serifless"
+i = "serifed-semi-tailed"
+k = "straight-bottom-right-serifed"
+l = "serifed-semi-tailed"
+y = "curly-serifless"
+eszet = "traditional-tailed-serifless"
+lower-iota = "serifed-semi-tailed"
+lower-tau = "semi-tailed"
+cyrl-capital-zhe = "symmetric-connected"
+cyrl-zhe = "symmetric-connected"
+cyrl-capital-ka = "curly-bottom-right-serifed"
+cyrl-ka = "curly-bottom-right-serifed"
+cyrl-u = "cursive-flat-hook-serifless"
+cyrl-che = "tailed"
+guillemet = "straight"
+dollar = "open"
+cent = "open"
+
+[buildPlans.IosevkaBrew.weights.Regular]
+shape = 400
+menu = 400
+css = 400
+
+[buildPlans.IosevkaBrew.weights.Bold]
+shape = 700
+menu = 700
+css = 700
+
+[buildPlans.IosevkaBrew.weights.Light]
+shape = 300
+menu = 300
+css = 300
+
+[buildPlans.IosevkaBrew.weights.Medium]
+shape = 500
+menu = 500
+css = 500
+
+[buildPlans.IosevkaBrew.widths.Normal]
+shape = 576
+menu = 5
+css = "normal"
+
+[buildPlans.IosevkaBrew.slopes.Upright]
+angle = 0
+shape = "upright"
+menu = "upright"
+css = "normal"
+
+[buildPlans.IosevkaBrew.slopes.Italic]
+angle = 9.4
+shape = "italic"
+menu = "italic"
+css = "italic"
+
+[buildPlans.IosevkaBrew.metricOverride]
+dotSize = 'default_dotSize * 0.8'
+sb = 'default_sb * 0.7'
+
+[collectPlans.IosevkaBrew]
+release = true
+from = ["IosevkaBrew"]