commit e83b6b08ff4cc7f4ea4710357fe3bf76da6b4542 Author: Paul Hitt Date: Mon Sep 28 14:45:34 2026 -0400 First public release Co-Authored-By: Claude Opus 5.5 diff --git a/.editorconfig b/.editorconfig new file mode 100644 index 0000000..f15441a --- /dev/null +++ b/.editorconfig @@ -0,0 +1,12 @@ +root = true + +[*] +charset = utf-8 +end_of_line = lf +insert_final_newline = true +trim_trailing_whitespace = true +indent_style = space +indent_size = 2 + +[*.md] +trim_trailing_whitespace = false diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..5fd8e1d --- /dev/null +++ b/.gitignore @@ -0,0 +1,8 @@ +node_modules/ +dist/ +*.log +.DS_Store +.env* +!.env.example +.npmrc +dist-cjs/ diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml new file mode 100644 index 0000000..e5a37d2 --- /dev/null +++ b/.gitlab-ci.yml @@ -0,0 +1,6 @@ +stages: [test] + +test: + stage: test + image: node:22-alpine + script: [npm ci, npm run build, npm test] diff --git a/CHANGELOG.md b/CHANGELOG.md new file mode 100644 index 0000000..5add94e --- /dev/null +++ b/CHANGELOG.md @@ -0,0 +1,15 @@ +# Changelog + +## 0.1.1 - 2026-09-28 + +First public release under MIT. + +- `compare()` ranks build, hosted and self-hosted options by total cost over a + horizon of several years. +- Blockers are checked before any arithmetic. A blocked option is reported as + not applicable, never as a priced one. +- A self-hosted option with no listed operational surface is not assessed. +- A missing operating cost makes an option uncostable, never free, and a + recommendation made while anything is unestimated is labelled provisional. +- `toReport()` and `formatComparison()` produce and render a report in the + `@extant2000/evidence-record` format. diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md new file mode 100644 index 0000000..3d390d7 --- /dev/null +++ b/CONTRIBUTING.md @@ -0,0 +1,22 @@ +# Contributing + +Issues and merge requests are welcome at +https://gitlab.com/extant2000/build-or-buy. + +## Ground rules + +- **A test that cannot fail proves nothing.** If you fix a bug, add a test + that fails without your fix, and check that it does fail before you submit. +- Measure, do not assume. Two modules with the same line count can be + different programs. +- Keep dependencies minimal. Every new dependency needs a reason. +- Explain why in comments, not what. + +## Before you open a merge request + +Run both of these and make sure they pass: + +``` +npm run build +npm test +``` diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..34e49b1 --- /dev/null +++ b/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2026 Extant 2000 LLC + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 0000000..9750ea2 --- /dev/null +++ b/README.md @@ -0,0 +1,90 @@ +# BuildOrBuy + +Compares building a capability against adopting one over a multi-year +horizon, and checks the constraints that disqualify an option before it does +any arithmetic. + +## What it does and why + +Build-or-buy decisions are usually made as build days against a licence fee. +That framing hides the three things that most often decide the answer, so +this library models each of them. + +### A prohibited option is not an expensive one + +Suppose a hosted vendor is cheaper, but its terms of service forbid the use +you need. No cost comparison can give the right answer, because that option +was never available. You record the constraint as a `blocker`. Blockers are +checked before any cost is computed, and a blocked option is reported as +`not-applicable`. Pricing it would imply it could win. + +### Self-hosting a third-party tool is a build with a buy label + +Running someone else's software yourself is not purchasing it. You take on +backups, upgrades, capacity and on-call, and none of that shows up in a +licence table. An `adopt-self-hosted` option that has not listed its +`operationalSurface` is reported as not assessed and left out of the +ranking. + +### The operating cost dominates, and it is the number nobody fills in + +Build cost is paid once and estimated with care. Operating cost is paid +every year, for example the upkeep on an adopted tool or a usage bill that +keeps running after the project that needed it has ended. Costs are totalled +over `horizonYears`, and `operateDaysPerYear: null` makes an option +uncostable instead of free. Treating that term as zero is how "adopt" wins +on paper. + +A recommendation made while any option is still unestimated is labelled +provisional. When most of an option's cost is operating, the finding says +so. + +## A cost win is not the whole decision + +The result is a cost comparison, not a verdict. Some reasons to build are +not about cost: data custody, keeping a third party out of the critical +path, a licence you cannot accept. If such a reason rules an option out, +model it as a blocker so the option is removed. If it is a preference, weigh +it in the decision made around this output. + +## Usage + +```ts +import { compare, formatComparison, type Candidate } from '@extant2000/build-or-buy' + +const candidates: Candidate[] = [ + { name: 'in-house build', approach: 'build', + costs: { buildDays: 20, operateDaysPerYear: 2 }, where: 'decision.md' }, + { name: 'hosted service', approach: 'buy-hosted', + costs: { buildDays: 1, operateDaysPerYear: 1, cashPerYear: 600 }, where: 'decision.md' }, + { name: 'self-hosted tool', approach: 'adopt-self-hosted', + costs: { buildDays: 3, operateDaysPerYear: 6 }, + operationalSurface: ['backups', 'upgrades', 'capacity', 'on-call'], where: 'decision.md' }, + { name: 'vendor X', approach: 'buy-hosted', + costs: { buildDays: 1, operateDaysPerYear: 0, cashPerYear: 300 }, + blockers: [{ reason: 'terms of service prohibit the intended use', where: 'vendor-terms.md' }], + where: 'decision.md' }, +] + +const cmp = { horizonYears: 3, dayRate: 800 } + +const { winner, viable, disqualified, uncostable, reason } = compare(candidates, cmp) + +// A report in the @extant2000/evidence-record format, rendered as text. +console.log(formatComparison(candidates, cmp)) +``` + +`totalCost(candidate, cmp)` returns the horizon total, or `null` when an +input is missing. `toReport()` returns the structured report that +`formatComparison()` renders. Every finding cites the `where` of its +candidate or blocker. + +## Install + +``` +npm install @extant2000/build-or-buy +``` + +## License + +MIT. 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"0.1.1", + "private": false, + "description": "Compares building against buying or self-hosting over a multi-year horizon, checking disqualifying constraints before cost.", + "license": "MIT", + "type": "module", + "main": "./dist-cjs/index.js", + "files": [ + "dist", + "dist-cjs", + "src", + "README.md", + "LICENSE" + ], + "repository": { + "type": "git", + "url": "https://gitlab.com/extant2000/build-or-buy.git" + }, + "module": "./dist/index.js", + "types": "./dist/index.d.ts", + "exports": { + ".": { + "types": "./dist/index.d.ts", + "import": "./dist/index.js", + "require": "./dist-cjs/index.js" + } + }, + "scripts": { + "build": "tsc && tsc -p tsconfig.cjs.json && node -e \"require('fs').writeFileSync('dist-cjs/package.json', JSON.stringify({type:'commonjs'}))\"", + "test": "vitest run", + "prepublishOnly": "npm run build" + }, + "devDependencies": { + "typescript": "^5.6.0", + "vitest": "^2.1.0" + }, + "dependencies": { + "@extant2000/evidence-record": "^0.1.2" + }, + "author": "Extant 2000 LLC", + "homepage": "https://gitlab.com/extant2000/build-or-buy", + "bugs": { + "url": "https://gitlab.com/extant2000/build-or-buy/-/issues" + } +} diff --git a/src/index.ts b/src/index.ts new file mode 100644 index 0000000..942e998 --- /dev/null +++ b/src/index.ts @@ -0,0 +1,258 @@ +/** + * BuildOrBuy — compare building a capability against adopting one, on the + * terms that actually decide it. + * + * The comparison is almost always made as build-days against licence cost, + * and that is the one framing under which the decision cannot go wrong in an + * interesting way. Three corrections: + * + * 1. **A prohibited option is not an expensive one.** When a vendor's + * terms forbid the use you need, no cost comparison can produce the + * right answer, because "buy" was never on the table. A blocker makes + * an option NOT APPLICABLE, and it is evaluated BEFORE any arithmetic. + * + * 2. **Self-hosting a third-party tool is a build, not a buy.** Running + * someone else's software is not purchasing it; it is taking on + * operating it, including capacity the host may not have, which is a + * cost that appears in no licence table. An `adopt-self-hosted` option + * that has not enumerated what it is operating reports NOT ASSESSED. + * + * 3. **The operating term dominates and is the one nobody fills in.** A + * forgotten credential or a runaway usage meter on an adopted tool + * becomes a bill nobody planned for. Build cost is paid once and + * estimated carefully; operating cost is paid every year and estimated + * never. Comparing over a horizon is the whole reason this is a + * calculation and not an opinion. + * + * Pure: no clock, no I/O. + */ + +import { + type CapabilityReport, + type Finding, + type FormatOptions, + evidence, + formatReport as renderReport, +} from '@extant2000/evidence-record' + +export type Approach = + /** Write it. All cost is yours, and so is all of the surface. */ + | 'build' + /** Use a hosted third party. Their operational surface, their terms. */ + | 'buy-hosted' + /** Run a third party's software yourself. A build wearing a buy's label. */ + | 'adopt-self-hosted' + +export interface Blocker { + /** Why this option is off the table regardless of cost. */ + reason: string + where: string +} + +export interface Costs { + /** One-off engineering days to reach parity. `null` when unestimated. */ + buildDays: number | null + /** Engineering days per year to keep it working. The term nobody fills in. */ + operateDaysPerYear: number | null + /** Cash per year — licence, hosting, per-seat. */ + cashPerYear?: number +} + +export interface Candidate { + name: string + approach: Approach + costs: Costs + /** Hard constraints that disqualify this option before any arithmetic. */ + blockers?: Blocker[] + /** + * What you take on operating. Required for `adopt-self-hosted`: an option + * that has not enumerated its surface has not been costed. + */ + operationalSurface?: string[] + where: string +} + +export interface Comparison { + /** Years to compare over. Point-in-time comparison is the original error. */ + horizonYears: number + /** Fully-loaded cost of one engineering day. */ + dayRate: number +} + +export interface Scored extends Candidate { + /** Total cost over the horizon, `null` when any input is missing. */ + total: number | null + /** Disqualified before arithmetic. */ + disqualified: boolean +} + +/** + * Total cost over the horizon. + * + * `null` when any input is missing, and deliberately not defaulted to zero: + * an unestimated operating cost is the single largest term in most of these + * comparisons, and treating it as free is exactly how "adopt" wins on paper. + */ +export function totalCost(c: Candidate, cmp: Comparison): number | null { + const { buildDays, operateDaysPerYear, cashPerYear } = c.costs + if (buildDays === null || operateDaysPerYear === null) return null + return buildDays * cmp.dayRate + + operateDaysPerYear * cmp.dayRate * cmp.horizonYears + + (cashPerYear ?? 0) * cmp.horizonYears +} + +const money = (n: number): string => + n >= 1000 ? `$${Math.round(n / 1000)}k` : `$${Math.round(n)}` + +function candidateEvidence(c: Candidate) { + return evidence.file(c.where, undefined, c.approach, + c.costs.operateDaysPerYear === null + ? 'operating cost not estimated' + : `${c.costs.operateDaysPerYear} day(s)/yr to operate`) +} + +function findingFor(c: Candidate, cmp: Comparison): Finding { + const id = c.name + + // Checked first, and it is not a cost. An option that is off the table is + // not a costly one, and ranking it by price implies it could win. + if (c.blockers && c.blockers.length > 0) { + return { + id, + summary: `${c.name} is disqualified — ${c.blockers[0]!.reason}`, + determination: 'not-applicable', + severity: 'info', + detail: 'Off the table regardless of cost. A prohibited option is not an expensive one, and pricing it implies it could win.', + evidence: c.blockers.map(b => evidence.file(b.where, undefined, b.reason)), + } + } + + if (c.approach === 'adopt-self-hosted' && (c.operationalSurface?.length ?? 0) === 0) { + return { + id, + summary: `${c.name} is self-hosted and has not enumerated what it operates`, + determination: 'not-assessed', + severity: 'high', + detail: 'Self-hosting a third-party tool is a build wearing a buy\'s label. You are not purchasing it, you are taking on operating it — list the backups, upgrades, capacity and on-call that come with it, or this option has not been costed.', + evidence: [candidateEvidence(c)], + } + } + + const total = totalCost(c, cmp) + if (total === null) { + return { + id, + summary: `${c.name} cannot be costed`, + determination: 'not-assessed', + severity: 'high', + detail: c.costs.operateDaysPerYear === null + ? 'Operating cost is unestimated. It is the largest term in most of these comparisons and treating it as free is exactly how "adopt" wins on paper.' + : 'Build cost is unestimated.', + evidence: [candidateEvidence(c)], + } + } + + const operate = c.costs.operateDaysPerYear! * cmp.dayRate * cmp.horizonYears + const share = Math.round((operate / total) * 100) + + return { + id, + summary: `${c.name} — ${money(total)} over ${cmp.horizonYears} year(s), ${share}% of it operating`, + determination: 'pass', + severity: 'info', + detail: share >= 50 + ? 'Most of this cost is operating, not building. That term is paid every year and estimated never.' + : undefined, + evidence: [candidateEvidence(c)], + } +} + +export interface Recommendation { + /** Cheapest viable candidate, or `null` when none can be costed. */ + winner: Scored | null + /** Ranked, cheapest first. Excludes disqualified and uncostable options. */ + viable: Scored[] + /** Off the table regardless of cost. */ + disqualified: Scored[] + /** Viable in principle, not costable yet. */ + uncostable: Scored[] + reason: string +} + +/** Compare candidates over a horizon and recommend one. */ +export function compare(candidates: Candidate[], cmp: Comparison): Recommendation { + const scored: Scored[] = (candidates ?? []).map(c => ({ + ...c, + total: totalCost(c, cmp), + disqualified: (c.blockers?.length ?? 0) > 0, + })) + + const disqualified = scored.filter(c => c.disqualified) + const rest = scored.filter(c => !c.disqualified) + const uncostable = rest.filter(c => + c.total === null + || (c.approach === 'adopt-self-hosted' && (c.operationalSurface?.length ?? 0) === 0)) + const viable = rest + .filter(c => !uncostable.includes(c)) + .sort((a, b) => a.total! - b.total!) + + if (viable.length === 0) { + return { + winner: null, + viable, disqualified, uncostable, + reason: scored.length === 0 + ? 'No candidates were supplied.' + : `No candidate could be costed: ${disqualified.length} disqualified, ${uncostable.length} unestimated.`, + } + } + + const winner = viable[0]! + const runnerUp = viable[1] + const margin = runnerUp ? runnerUp.total! - winner.total! : null + + return { + winner, + viable, disqualified, uncostable, + reason: uncostable.length > 0 + ? `${winner.name} is cheapest of those that could be costed (${money(winner.total!)} over ${cmp.horizonYears} years), but ${uncostable.length} option(s) remain unestimated — this is a provisional answer.` + : runnerUp + ? `${winner.name} at ${money(winner.total!)}, ${money(margin!)} cheaper than ${runnerUp.name} over ${cmp.horizonYears} years.` + : `${winner.name} at ${money(winner.total!)} — the only costable option.`, + } +} + +/** Report a build-or-buy comparison. */ +export function toReport(candidates: Candidate[], cmp: Comparison): CapabilityReport { + const list = candidates ?? [] + + if (list.length === 0) { + return { + capability: 'BuildOrBuy', + scope: 'no candidates', + examined: 0, + findings: [], + notes: ['No options were supplied, so nothing was compared. A decision with one option considered is not a comparison.'], + } + } + + const rec = compare(list, cmp) + return { + capability: 'BuildOrBuy', + scope: `${list.length} option(s) over ${cmp.horizonYears} year(s) at ${money(cmp.dayRate)}/day`, + examined: list.length, + findings: list.map(c => findingFor(c, cmp)), + notes: [ + rec.winner ? `recommendation: ${rec.winner.name} — ${rec.reason}` : `no recommendation — ${rec.reason}`, + 'Costed over a horizon, not at a point: the operating term is paid every year and is the one nobody fills in.', + ], + } +} + +/** Render a comparison for a terminal, a memo or a decision record. */ +export function formatComparison( + candidates: Candidate[], + cmp: Comparison, + opts: FormatOptions = {}, +): string { + return renderReport(toReport(candidates, cmp), opts) +} diff --git a/test/build-or-buy.test.ts b/test/build-or-buy.test.ts new file mode 100644 index 0000000..dfac136 --- /dev/null +++ b/test/build-or-buy.test.ts @@ -0,0 +1,154 @@ +import { describe, expect, it } from 'vitest' +import { overall, validateReport } from '@extant2000/evidence-record' +import { + compare, + formatComparison, + toReport, + totalCost, + type Candidate, + type Comparison, +} from '../src/index.js' + +const cmp: Comparison = { horizonYears: 3, dayRate: 800 } + +const build = (p: Partial = {}): Candidate => ({ + name: 'in-house build', + approach: 'build', + costs: { buildDays: 20, operateDaysPerYear: 2 }, + where: 'decision-record.md', + ...p, +}) + +describe('a prohibited option is not an expensive one', () => { + // A provider whose terms forbid the intended use is not a cheap option. + // No cost comparison can produce the right answer, because "buy" is not + // on the table. + const hostedProvider = build({ + name: 'hosted provider', + approach: 'buy-hosted', + costs: { buildDays: 1, operateDaysPerYear: 0, cashPerYear: 600 }, + blockers: [{ reason: 'terms of service prohibit the intended use', where: 'provider-terms.md' }], + }) + + it('disqualifies before any arithmetic', () => { + const r = compare([build(), hostedProvider], cmp) + expect(r.disqualified.map(c => c.name)).toEqual(['hosted provider']) + expect(r.viable.map(c => c.name)).toEqual(['in-house build']) + }) + + it('reports it as not-applicable, never as a costly option', () => { + const f = toReport([hostedProvider], cmp).findings[0]! + expect(f.determination).toBe('not-applicable') + expect(f.detail).toContain('pricing it implies it could win') + }) + + it('would otherwise have been the cheapest — which is the point', () => { + // 1 day + $600/yr = $2.6k, against build's $20.8k. Cost was never the + // deciding term. + const { blockers, ...unblocked } = hostedProvider + expect(totalCost(unblocked as Candidate, cmp)!).toBeLessThan(totalCost(build(), cmp)!) + }) + + it('cites the terms that disqualified it', () => { + expect(formatComparison([hostedProvider], cmp, { evidence: 'full' })).toContain('provider-terms.md') + }) +}) + +describe('self-hosting a third-party tool is a build wearing a buy label', () => { + const selfHosted = build({ + name: 'self-hosted tool', + approach: 'adopt-self-hosted', + costs: { buildDays: 3, operateDaysPerYear: 6 }, + }) + + it('reports not-assessed when the operational surface is not enumerated', () => { + const f = toReport([selfHosted], cmp).findings[0]! + expect(f.determination).toBe('not-assessed') + expect(f.detail).toContain('taking on operating it') + expect(overall(toReport([selfHosted], cmp))).toBe('not-assessed') + }) + + it('excludes it from the ranking until it is enumerated', () => { + const r = compare([build(), selfHosted], cmp) + expect(r.uncostable.map(c => c.name)).toEqual(['self-hosted tool']) + expect(r.viable.map(c => c.name)).toEqual(['in-house build']) + }) + + it('costs it once the surface is listed', () => { + const listed = { ...selfHosted, operationalSurface: ['backups', 'upgrades', 'capacity', 'on-call'] } + const r = compare([build(), listed], cmp) + expect(r.uncostable).toHaveLength(0) + expect(r.viable).toHaveLength(2) + }) + + it('does not demand a surface from a hosted buy', () => { + const hosted = build({ name: 'hosted', approach: 'buy-hosted', costs: { buildDays: 1, operateDaysPerYear: 0, cashPerYear: 1200 } }) + expect(toReport([hosted], cmp).findings[0]!.determination).toBe('pass') + }) +}) + +describe('the operating term is the one nobody fills in', () => { + it('refuses to treat an unestimated operating cost as zero', () => { + // Treating it as free is exactly how "adopt" wins on paper. + const vague = build({ name: 'vague', costs: { buildDays: 5, operateDaysPerYear: null } }) + expect(totalCost(vague, cmp)).toBeNull() + const f = toReport([vague], cmp).findings[0]! + expect(f.determination).toBe('not-assessed') + expect(f.detail).toContain('how "adopt" wins on paper') + }) + + it('costs over the horizon, not at a point', () => { + // 20 build days + 2 op days/yr x 3 yrs = 26 days = $20,800 + expect(totalCost(build(), cmp)).toBe(20_800) + expect(totalCost(build(), { ...cmp, horizonYears: 1 })).toBe(17_600) + }) + + it('flags when most of the cost is operating', () => { + const opHeavy = build({ name: 'op-heavy', costs: { buildDays: 2, operateDaysPerYear: 10 } }) + const f = toReport([opHeavy], cmp).findings[0]! + expect(f.summary).toContain('% of it operating') + expect(f.detail).toContain('paid every year and estimated never') + }) + + it('includes cash cost across the horizon', () => { + const paid = build({ costs: { buildDays: 0, operateDaysPerYear: 0, cashPerYear: 1000 } }) + expect(totalCost(paid, cmp)).toBe(3000) + }) +}) + +describe('recommendation', () => { + it('names the margin over the runner-up', () => { + const r = compare([ + build(), + build({ name: 'cheap', costs: { buildDays: 1, operateDaysPerYear: 1 } }), + ], cmp) + expect(r.winner!.name).toBe('cheap') + expect(r.reason).toContain('cheaper than in-house build') + }) + + it('calls the answer provisional while anything is unestimated', () => { + const r = compare([build(), build({ name: 'unknown', costs: { buildDays: null, operateDaysPerYear: null } })], cmp) + expect(r.reason).toContain('this is a provisional answer') + }) + + it('makes no recommendation when nothing can be costed', () => { + const r = compare([build({ costs: { buildDays: null, operateDaysPerYear: null } })], cmp) + expect(r.winner).toBeNull() + expect(r.reason).toContain('unestimated') + }) +}) + +describe('conformance with the evidence-record standard', () => { + it('no candidates is not-assessed, and says why', () => { + expect(overall(toReport([], cmp))).toBe('not-assessed') + expect(formatComparison([], cmp)) + .toContain('A decision with one option considered is not a comparison') + }) + + it('every conclusion carries a citation', () => { + expect(validateReport(toReport([ + build(), + build({ name: 'x', approach: 'adopt-self-hosted', operationalSurface: ['backups'] }), + ], cmp))).toEqual([]) + }) +}) diff --git a/tsconfig.cjs.json b/tsconfig.cjs.json new file mode 100644 index 0000000..0d99093 --- /dev/null +++ b/tsconfig.cjs.json @@ -0,0 +1,9 @@ +{ + "extends": "./tsconfig.json", + "compilerOptions": { + "module": "CommonJS", + "moduleResolution": "Node", + "outDir": "dist-cjs", + "declaration": false + } +} diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..9f56c30 --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,8 @@ +{ + "compilerOptions": { + "target": "ES2022", "module": "ES2022", "moduleResolution": "bundler", + "declaration": true, "outDir": "dist", "rootDir": "src", + "strict": true, "skipLibCheck": true + }, + "include": ["src/**/*.ts"] +}